Math - Mathematics
Mathematics is the
science of
measuring things and
calculating things in our world. Math is a science or
a group of related
sciences dealing with the logic of quantity,
numbers, structure,
patterns, space,
change,
shape and
arrangement. Math is a
language using
symbols that are use
to describe
patterns in
nature, and used to
interpret the
behaviors of matter, which in turn helps us to
make
sense
of the world, and
also
communicate information and
abstract ideas. Math helps
us to
predict the future and
understand the past, while measuring the
present
time. Math is used in
engineering,
reasoning,
decision making,
planning and
problem solving, just to name a few.
Add -
Subtract -
Divide -
Multiply -
Fractions -
Algebra -
Geometry -
Calculus -
Trigonometry -
Statistics -
Symmetry
Mathematics Education
Mathematics Education is the practice of
teaching and
learning mathematics, along with the associated
scholarly
research.
Outline of Mathematics
(PDF)
The Map
of Mathematics (youtube).
What Math Skills Are Needed to Become an Engineer?
Mathematician
is someone who uses an extensive knowledge of mathematics in his/her work,
typically to solve mathematical problems. Mathematics is concerned with
numbers, data, quantity, structure, space, models, and change.
Mathematical intelligence is being number
smart and
being
good at
reasoning using math. Math smart
is the ability to determine the number or amount of something and the ability to correctly apply
mathematics when needed. Math smart is the capacity to carry out
mathematical operations that would help you to
analyze problems
logically,
and
investigate issues
scientifically.
Number Sense is having an intuitive understanding of
numbers, their
magnitude, relationships, and how they are affected by operations. A
person who knows how to
solve mathematical problems that are not bound by traditional
algorithms.
Mathematical Sciences is a group of areas of study
that includes, in addition to mathematics, those academic disciplines that
are primarily mathematical in nature but may not be universally considered
subfields of mathematics proper.
Applied Mathematics is a branch of mathematics that
deals with mathematical methods that find use in science, engineering,
business, computer science, and industry. Thus, applied mathematics is a
combination of mathematical science and specialized knowledge.
Discrete Mathematics is the study of mathematical
structures that are fundamentally discrete rather than continuous.
Babylonian Mathematics was any mathematics developed or practiced by
the people of Mesopotamia, from the days of the early Sumerians to the
fall of Babylon in
539 BC. The first
positional numerical system was developed in Babylon in the 2nd
millennium.
Principles of Math.
Dyscalculia is difficulty in learning or comprehending arithmetic,
such as difficulty in understanding numbers, learning how to manipulate
numbers, and learning facts in mathematics.
Mathematics as a Language is the
system used by
mathematicians to communicate mathematical ideas among themselves. This
language consists of a substrate of some natural language like
English, using technical terms and
grammatical conventions that are peculiar to mathematical discourse, supplemented by a highly specialized
symbolic notation for
mathematical formulas.
Like
natural languages in general, discourse
using the
Language of Mathematics can employ a scala of registers. Research
articles in academic journals are sources for detailed theoretical
discussions about ideas concerning mathematics and its implications for
society.
Mathematical
jargon (wiki).
Mathematics and Art
are related in a variety of ways. Mathematics has itself been described as
an
art motivated by beauty. Mathematics can be discerned in arts such as
music, dance, painting,
architecture, sculpture, and textiles. This
article focuses, however, on mathematics in the visual arts.
Symmetry.
Music and Mathematics the basis of
musical sound can be described mathematically in acoustics and
exhibits a remarkable array of number properties. Elements of music such
as its form, rhythm and metre, the pitches of its notes and the tempo of
its pulse can be related to the measurement of time and frequency,
offering ready analogies in geometry. The attempt to structure and
communicate new ways of composing and hearing music has led to musical
applications of set theory, abstract algebra and number theory. Some
composers have incorporated the golden ratio and
Fibonacci numbers into their work.
Functions - Symbols
Mathematical Notation is a
system of
symbolic
representations of mathematical objects and ideas. Mathematical notations include relatively simple symbolic
representations, such as the numbers 0, 1 and 2, function symbols
sin and
+; conceptual symbols, such as lim, dy/dx, equations and variables; and
complex diagrammatic notations such as Penrose graphical notation and
Coxeter–Dynkin diagrams. Mathematical notations are used in mathematics,
the physical sciences, engineering, and economics.
Math Mnemonics (PDF).
Mathematical Symbols (PDF) -
Mathematical Symbols by Subject (PDF) -
Symbols (language)
Sign in mathematics originates from the property of every real number
being either positive or negative or zero. Depending on local conventions,
zero is either considered as being neither a positive, nor a negative
number (having no sign, or a specific sign of its own), or as belonging to
both, negative and positive numbers (having both signs).
Plus Sign (
+) is a binary operator that
indicates
addition, as in 2 + 3 = 5.
Minus Sign (
−) has three main uses in
mathematics. The
subtraction operator: A binary
operator to indicate the operation of subtraction, as in 5 − 3 = 2.
Subtraction is the inverse of addition. Directly in front of a number
(numeric literal) and when it is not a subtraction operator it means a
negative number. For instance −5 is negative 5. A unary operator that acts
as an instruction to replace the operand by its additive inverse. For
example, if x is 3, then −x is −3, but if x is −3, then −x is 3.
Similarly, −(−2) is equal to 2. The above is a special case of this.
Calculations.
Multiplication Sign is the symbol
X.
While similar to the lowercase letter x, the form is properly a
rotationally symmetric
saltire
also known as the times sign or the dimension sign.
*
symbol on a
computer keyboard can be used to
Multiply.
Square is the result of multiplying a number by itself. 3 may be
written as 3
2 or three squared, which is the number 9.
Square
Root of a number
x is a number
y such that
y2
= x. √25
= 5.
Obelus
symbol commonly represents the mathematical operation of
division. it's a symbol consisting of a short horizontal line with a
dot above and another dot below, commonly called the division sign.
Forward Slash symbol on a computer keyboard can be used to
divide.
Equals
Sign equality sign (
=) is a
mathematical symbol used to indicate
equality when the symbol is
placed between two things. A sign indicating what the quantities add up
to. Two
parallel horizontal lines.
Less-than Sign is a mathematical symbol that denotes an inequality
between two values. Examples of typical usage include 1/2 < 1 and -2 < 0.
(when the symbol points to the left it's less than).
Greater-than Sign is a mathematical symbol that denotes an inequality
between two values. Examples of typical usage include 1.5 > 1 and 1 > -2.
Two other comparison symbols are ≥ (greater than or equal to) and
≤ (less than or equal to).
Approximation ≈ tilde (U+2248, almost equal
to) -
Key Board Symbols.
Decimal is the
standard system for denoting integer and non-integer numbers.(
3.141).
Decimal
Separator is a symbol used to separate the integer part from the
fractional part of a number written in decimal form.
Function
is a relation such that one thing is dependent on another. A set
sequence
of steps, part of larger
computer program. Serve as a
purpose and what something is used for.
Algebra.
Function in mathematics is a relation between a set of inputs and a set
of permissible outputs with the property that each input is related to
exactly one output.
A mathematical relation such that each element of a given set (the domain
of the function) is associated with an element of another set (the range
of the function).
List of Mathematical Functions (wiki).
Implicit Function is a function that is defined implicitly
by an implicit equation, by associating one of the variables (the value)
with the others (the arguments).
Injective
Function is a function that maps distinct elements of its domain to
distinct elements of its codomain. In other words, every element of the
function's codomain is the image of at most one element of its domain. The
term one-to-one function must not be confused with one-to-one
correspondence that refers to
bijective functions, which are functions such that each element in the
codomain is an image of exactly one element in the domain.
Inverse Function is a function that "reverses" another function.
Exponential
Function is a function of the form.
Utility -
Performance.
Equation is a
statement containing one or more
variables that are either added,
subtracted, divided or multiplied in order to get an answer or to
determine the values of numbers and what they equate to. A statement of an
equality containing one or
more variables. Solving the equation consists of determining which values
of the variables make the equality true.
Equation is a
statement that the values of two mathematical expressions are
equal
(indicated by the sign =) the process of equating one thing with another.
Variables are also called unknowns and the values of the unknowns which
satisfy the equality are called solutions of the equation. There are two
kinds of equations: identities and conditional equations. An identity is
true for all values of the variable. A conditional equation is true for
only particular values of the variables. (1+3=4, one plus three equals
four, one plus three is equal to four).
Knowledge.
Equation Solving finding an answer to a set of variables
using a mathematical function like adding or subtraction.
Mathematical Operation is a
calculation from zero or
more input values (called operands) to an output value. The number of
operands is the
arity of the operation.
Mathematical Expression is a finite combination of
symbols that is well-formed
according to rules that depend on the context. Mathematical symbols can
designate numbers (constants), variables, operations, functions, brackets,
punctuation, and grouping to help
determine order of operations, and other aspects of logical syntax.
Interpretation logic is an
assignment
of meaning to the
symbols
of a formal language. Many formal languages used in mathematics, logic,
and theoretical computer science are defined in solely syntactic terms,
and as such do not have any meaning until they are given some
interpretation. The general study
of interpretations of formal languages is called formal semantics.
Interpretation function in mathematical logic is a function that
assigns functions and relations to the symbols of a signature.
Interpretability in mathematical logic is a relation between formal
theories that expresses the possibility of interpreting or translating one
into the other.
Formula is a rule expressed in symbols or a concise way of expressing information
symbolically as in a
mathematical or chemical formula. A conventionalized statement expressing
some fundamental principle.
Directions
for making something. A standard
procedure for solving a class of mathematical problems.
Well-formed Formula is a finite
sequence of symbols
from a given alphabet that is part of a formal language. A formal language
can be identified with the set of formulas in the language.
Factorization is to reduce something to “
basic
building blocks”, such as numbers to prime numbers, or polynomials to
irreducible polynomials. Factorization consists of writing a number or
another mathematical object as a product of several factors, usually
smaller or simpler objects of the same kind. For example, 3 × 5 is a
factorization of the integer 15, and (x – 2)(x + 2) is a factorization of
the polynomial x2 – 4. Factorization is not usually considered meaningful
within number systems possessing division, such as the real or complex
numbers. However, a meaningful factorization for a rational number or a
rational function can be obtained by writing it in lowest terms and
separately factoring its numerator and denominator. Factorization was
first considered by ancient Greek mathematicians in the case of integers.
They proved the fundamental theorem of arithmetic, which asserts that
every positive integer may be factored into a product of prime numbers,
which cannot be further factored into integers greater than 1. Moreover,
this factorization is unique up to the order of the factors. Although
integer factorization is a sort of inverse to multiplication, it is much
more difficult algorithmically, a fact which is exploited in the RSA
cryptosystem to implement public-key cryptography. Polynomial
factorization has also been studied for centuries. In elementary algebra,
factoring a polynomial reduces the problem of finding its roots to finding
the roots of the factors. Polynomials with coefficients in the integers or
in a field possess the unique factorization property, a version of the
fundamental theorem of arithmetic with prime numbers replaced by
irreducible polynomials. In particular, a univariate polynomial with
complex coefficients admits a unique (up to ordering) factorization into
linear polynomials: this is a version of the fundamental theorem of
algebra. In this case, the factorization can be done with root-finding
algorithms. The case of polynomials with integer coefficients is
fundamental for computer algebra. There are efficient computer algorithms
for computing (complete) factorizations within the ring of polynomials
with rational number coefficients (see factorization of polynomials). A
commutative ring possessing the unique factorization property is called a
unique factorization domain. There are number systems, such as certain
rings of algebraic integers, which are not unique factorization domains.
However, rings of algebraic integers satisfy the weaker property of
Dedekind domains: ideals factor uniquely into prime ideals. Factorization
may also refer to more general decompositions of a mathematical object
into the product of smaller or simpler objects. For example, every
function may be factored into the composition of a surjective function
with an injective function. Matrices possess many kinds of matrix
factorizations. For example, every matrix has a unique LUP factorization
as a product of a lower triangular matrix L with all diagonal entries
equal to one, an upper triangular matrix U, and a permutation matrix P;
this is a matrix formulation of Gaussian elimination.
Integer Factorization is the decomposition of a composite number into
a product of smaller integers. If these factors are further restricted to
prime numbers, the process is called prime factorization. When the numbers
are sufficiently large, no efficient, non-quantum integer factorization
algorithm is known. An effort by several researchers, concluded in 2009,
to factor a 232-digit number (RSA-768) utilizing hundreds of machines took
two years and the researchers estimated that a 1024-bit RSA modulus would
take about a thousand times as long. However, it has not been proven that
no efficient
algorithm exists. The presumed difficulty of this problem is at the
heart of widely used algorithms in
cryptography such as RSA. Many areas of mathematics and computer
science have been brought to bear on the problem, including elliptic
curves, algebraic number theory, and
quantum computing. Not all numbers of a given length are equally hard
to factor. The hardest instances of these problems (for currently known
techniques) are semiprimes, the product of two prime numbers. When they
are both large, for instance more than two thousand bits long, randomly
chosen, and about the same size (but not too close, for example, to avoid
efficient factorization by Fermat's factorization method), even the
fastest prime factorization algorithms on the fastest computers can take
enough time to make the search impractical; that is, as the number of
digits of the primes being factored increases, the number of operations
required to perform the factorization on any computer increases
drastically. Many cryptographic protocols are based on the difficulty of
factoring large composite integers or a related problem—for example, the
RSA problem. An algorithm that efficiently factors an arbitrary integer
would render RSA-based public-key cryptography insecure.
Factor Analysis is a
statistical method used to describe
variability among observed, correlated variables in terms of a potentially
lower number of unobserved variables called factors.
Evaluation (testing)
Axiom is a statement that is taken to be true, to serve as a
premise or
starting point for further reasoning and arguments.
Mathematical Proof is a deductive argument for a
mathematical statement. In the argument, other previously established
statements, such as theorems, can be used. In principle, a proof can be
traced back to self-evident or assumed statements, known as axioms, along
with accepted rules of inference. Axioms may be treated as conditions that
must be met before the statement applies. Proofs are examples of deductive
reasoning and are distinguished from inductive or empirical arguments; a
proof must demonstrate that a statement is always true (occasionally by
listing all possible cases and showing that it holds in each), rather than
enumerate many confirmatory cases. An unproved proposition that is
believed to be true is known as a conjecture.
Logarithm is the inverse operation to exponentiation.
That means the logarithm of a number is the exponent to which another
fixed number, the base, must be raised to produce that number.
Combination
is a way of selecting items from a
collection.
Parameters is any characteristic that can help in defining
or classifying a particular system (meaning an event, project, object,
situation, etc.). That is, a parameter is an element of a system that is
useful, or critical, when identifying the system, or when evaluating its
performance, status, condition, etc.
Frame of Reference consists of an abstract coordinate system
and the set of physical reference points that uniquely fix (locate and
orient) the coordinate system and standardize measurements.
Matrix.
Mathematical Induction is a mathematical proof technique
used to prove a given statement about any well-ordered set. Most commonly,
it is used to establish statements for the set of all natural numbers.
Physics Math -
Math
Games
Combinatorial Game Theory is a branch of mathematics and theoretical computer science that typically
studies sequential games with perfect information.
Mathematical Analysis is the branch of mathematics
dealing with limits and related theories, such as differentiation,
integration, measure, infinite series, and analytic functions.
Mathematical Model is a description of a system using
mathematical concepts and language.
Mathematical Models are systems of differential equations used to describe
biological mechanisms, such as a cell: Irina Kareva (video and text) -
Asking the right question and translating it to the right equation, and
then back. I formulate assumptions about how these elements interact with
each other and with their environment. Then, I translate these assumptions
into equations. Finally, I analyze my equations and translate the results
back into the language of biology.
Graphical
Model is a probabilistic model for which a graph expresses
the conditional dependence structure between random variables. They are
commonly used in probability theory, statistics—particularly Bayesian
statistics—and machine learning.
Probabilistic Model is a class of mathematical model, which
embodies a set of assumptions concerning the generation of some sample
data, and similar data from a larger population. A statistical model
represents, often in considerably idealized form, the data-generating
process.
Mathematical
Visualization is an aspect of
geometry which allows one to
understand and explore mathematical phenomena via
visualization.
Probabilistic Graphical Models (coursera)
Anomaly -
Pattern
Recognition -
Ai
Similarity
Geometry if
two objects
both have the same shape, or one has the same shape as the mirror image of
the other.
Films about Math -
Math Videos
Éléments de mathématique is a treatise on mathematics by the
collective
Nicolas Bourbaki, composed of twelve books (each divided into one or
more chapters).
Pure Mathematics is the study of mathematical concepts independently
of any application outside mathematics. These concepts may originate in
real-world concerns, and the results obtained may later turn out to be
useful for practical applications, but pure mathematicians are not
primarily motivated by such applications. Instead, the appeal is
attributed to the intellectual challenge and aesthetic beauty of working
out the logical consequences of basic principles.
Arithmetic - Calculating
Arithmetic
is a branch of mathematics that consists of the
study of numbers,
especially the properties of the traditional
operations on them—
addition,
subtraction,
multiplication
and
division.
The branch of
Pure Mathematics dealing with the theory of
numerical
Calculations.
Calculate is to
determine the
amount or
number of something using
mathematical methods.
To add things up. To determine something by
reasoning, common sense, or
practical experience; to
estimate; evaluate; gauge.
Recalculate is
the act of calculating something again to include additional data or to
eliminate possible errors.
Calculation is to
judge something to be
probable.
To
predict
something in advance using
mathematical methods.
To have a
certain
value or carry a certain weight.
Calculation is a deliberate process that
transforms one or
more
inputs into one or more results, with
variable change.
Calculation is a set of
formulas and
equations that produce
answers that are know to be
accurate and
valid, which allows the user
to be confident that the information that is being produced is accurate
and can also be used to make important
decisions or make more
calculations.
Analog Computer.
Mental
Calculation comprises arithmetical calculations using only
the human brain, with no help from calculators, computers, or pen and
paper.
Computation is any type of calculation that includes both arithmetical
and non-arithmetical steps and which follows a well-defined model (e.g. an
algorithm).
Mechanical or electronic devices (or, historically, people) that perform
computations are known as computers. An especially well-known discipline
of the study of computation is
computer science.
Counting is the action of finding the number of elements of
a finite set of objects.
Combinatorics is an area of mathematics primarily concerned with
counting, both as a means and an end in obtaining results, and certain
properties of finite structures.
Nerve
Cells in the Human Brain can Count. In humans, the
neurons activated in response to a "2" are
for instance not the same as the neurons activated for a "5." We are born
with the ability to count: Shortly after birth, babies can estimate the
number of events and even perform simple calculations. We learn digits
differently from
characters.
Quantify is to
express something as a
number or as a
measure
or
quantity, which shows
how many
or how little there are of something.
Factor is one of two or more
integers that can be exactly divided into another integer. Any of the
numbers (or symbols) that form a product when multiplied together. An
independent variable in statistics. Factor can also mean to consider
something as relevant when making a decision. Be a contributing factor.
Anything that contributes causally to a result. An abstract part of
something.
Elementary Arithmetic
is the simplified portion of arithmetic that includes the operations of
addition, subtraction, multiplication, and division. It should not be
confused with elementary function arithmetic.
Abacus
is a calculating tool constructed as a bamboo frame with beads sliding on
wires, but originally they were beans or stones moved in grooves in sand
or on tablets of wood, stone, or metal. The abacus system of
mental calculation is a system where users
mentally visualize an
abacus to do
calculations. The standard abacus
can be used to perform addition, subtraction, division, and
multiplication; the abacus can also be used to extract square-roots and
cubic roots.
Mental Abacus (wiki).
Visualization
Abacus (youtube).
Computation
is the procedure of calculating and determining something by
mathematical or logical methods. Problem solving that involves numbers or
quantities.
Calculator
is typically a
portable electronic device used to perform calculations,
ranging from basic arithmetic to complex mathematics.
Scientific calculators include trigonometric and statistical
calculations.
Graphing calculators can be used to graph functions defined on the
real line, or higher-dimensional Euclidean space. Some calculators even
have the ability to do
computer algebra.
Mechanical
Calculator is a mechanical device used to
perform automatically the
basic operations of arithmetic. Most mechanical calculators were
comparable in size to small desktop computers and have been rendered
obsolete by the advent of the electronic calculator.
Old Mechanical
Calculators (youtube)
Curta is a small
mechanical calculator accumulating values on cogs, which are added or
complemented by a stepped drum mechanism.
Formula
Calculator is a software calculator that can perform a calculation in
two steps: Enter the calculation by typing it in from the keyboard. Press
a single button or key to see the final result.
Software
Calculator is a calculator that has been implemented as a
computer
program, rather than as a physical hardware device. they are among the
simpler interactive
software tools, and, as such, they: Provide operations
for the user to select one at a time. Can be used to perform any process
that consists of a
sequence of steps each of which applies one of these
operations. Have no purpose other than these processes, because the
operations are the sole, or at least the primary, features of the
calculator, rather than being secondary features that support other
functionality that is not normally known simply as calculation. As a
calculator, rather than a computer, they usually: Have a small set of
relatively simple operations. Perform short processes that are not compute
intensive. Do not accept large amounts of input data or produce many
results.
Adder in electronics is a
digital
circuit that performs addition of numbers. In many computers and other
kinds of
processors adders are used
in the
arithmetic logic units or ALU. They
are also utilized in other parts of the processor, where they are used to
calculate addresses, table indices, increment and decrement operators, and
similar operations. Although adders can be constructed for many number
representations, such as
binary-coded decimal or excess-3, the most common adders operate on
binary numbers. In cases where two's complement or ones' complement is
being used to represent negative numbers, it is trivial to modify an adder
into an adder–subtractor. Other signed number representations require more
logic around the basic adder.
Tally
Marks is a unary numeral system. They are a form of numeral used for
counting. They are most useful in counting or tallying ongoing results,
such as the score in a game or sport, as no intermediate results need to
be erased or discarded.
Tally
Stick was an ancient memory aid device used to record and document
numbers, quantities, or even messages. 18,000 to 20,000 BC. Principally,
there are two different kinds of tally sticks: the single tally and the
split tally. A common form of the same kind of primitive counting device
is seen in various kinds of prayer beads.
Unary Language is a formal language (a set of strings) where all
strings have the form 1k, where "1" can be any fixed symbol. For example,
the language {1, 111, 1111} is unary, as is the language {1k | k is
prime}. The complexity class of all such languages is sometimes called
TALLY.
Download Calculators for PC -
Mathematical Integrals Calculator
Wolfram
Alpha -
Calculators
-
Conversions
-
Translations
Method of Exhaustion is a
method of
finding the area of a
shape by inscribing inside it
a sequence of
polygons whose areas converge to the
area of the containing shape. If the sequence is correctly constructed,
the difference in area between the n-th polygon and the containing shape
will become arbitrarily small as n becomes large. As this difference
becomes arbitrarily small, the possible values for the area of the shape
are systematically "exhausted" by the lower bound areas successively
established by the sequence members. The method of exhaustion typically
required a form of proof by contradiction, known as reductio ad absurdum.
This amounts to finding an area of a region by first comparing it to the
area of a second region (which can be “exhausted” so that its area becomes
arbitrarily close to the true area). The proof involves assuming that the
true area is greater than the second area, and then proving that assertion
false, and then assuming that it is less than the second area, and proving
that assertion false, too.
Numbers
Number is a mathematical object used to count,
measure, and label.
Symbol.
Prime Number -
Natural Number
Composite Number is a positive integer that can be
formed by multiplying together two smaller
Positive Integers.
Complex Number is a
number that can be expressed in the form a + bi,
where a and b are real numbers, and i is a solution of the equation x2 =
−1, which is called an
imaginary number because there is no real number that satisfies this
equation.
Integer
is a number that can be written without a fractional component. For
example, 21, 4, 0, and −2048 are integers, while 9.75, 5 1⁄2, and √2
are not.
Integer is any of the
Natural Number
(positive or negative) or zero. Whole Number.
Square
Number is an integer that is the square of an integer; in
other words, it is the product of some integer with itself. For example, 9
is a square number, since it can be written as 3×3.
Square Root is the result of
multiplying the number by
itself. For example, 4 and −4 are square roots of 16 because
42 = (−4)2 = 16.
Number
Theory is a branch of pure mathematics devoted primarily to
the study of the integers.
Numeral System
is a writing system for expressing numbers; that is, a mathematical
notation for representing numbers of a given set, using digits or other
symbols in a consistent manner. It can be seen as the context that allows
the symbols "11" to be interpreted as the binary symbol for three, the
decimal symbol for eleven, or a symbol for other numbers in different
bases.
Roman Numerals originated in ancient Rome and remained the usual way
of writing numbers throughout Europe well into the Late Middle Ages. The
history of Roman numerals follows the history of
Ancient Rome itself, from its beginnings at the
Latin Palatine Hill in
8th and 9th century B.C..
Numbers in this system are represented by combinations of letters from the
Latin alphabet. Roman numerals, as used today, employ seven symbols, each
with a fixed integer value, as follows: Symbol (I=1) (V=5) (X=10) (L=50)
(C=100) (D=500) (M=1,000).
Arabic Numerals are the ten digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9; or
numerals written using them in the Hindu–Arabic numeral system (where the
position of a digit indicates the power of 10 to multiply it by). It is
the most common system for the symbolic representation of numbers in the
world today.
Positional Notation denotes usually the extension to any base of the
Hindu–Arabic Numeral System (or decimal system). More generally, a
positional system is a numeral system in which the contribution of a digit
to the value of a number is the product of the value of the digit by a
factor determined by the position of the digit. In early numeral systems,
such as Roman numerals, a digit has only one value: I means one, X means
ten and C a hundred (however, the value may be negated if placed before
another digit). In modern positional systems, such as the decimal system,
the position of the digit means that its value must be multiplied by some
value: in 555, the three identical symbols represent five hundreds, five
tens, and five units, respectively, due to their different positions in
the digit string.
Decimal
numeral system (also called base-ten positional numeral system, and
occasionally called denary) is the standard system for denoting integer
and non-integer numbers. It is the extension to non-integer numbers of the
Hindu–Arabic numeral system. The way of denoting numbers in the decimal
system is often referred to as Decimal notation.
Approximate Number System is a cognitive system that
supports the estimation of the magnitude of a group without relying on
language or symbols.
List of Numbers -
Large Numbers -
More Numbers
Palindromic Number is a number that remains the same when its digits
are reversed.
"Crunching the Numbers"
If you start counting from one and spell out the numbers as you
go, you won't use the letter "A" until you reach 1,000.
Adding - Addition
Addition is determine the sum of. The act of adding one thing
to another. A quantity that is added. Something added to what you already
have. The arithmetic operation of summing;
calculating the sum of two or
more numbers. A component that is added to something to improve it.
Add is to make an addition to something
or join or combine or unite something with other things. To increase the
quality, quantity, size or scope of something. Make an addition by
combining numbers.
Figure how many things we have by adding things together. Figure how much there is of something by adding things up.
Figure the size of something by measuring and adding the numbers
up. Figure how many things I will have in the future by adding
things up. Predict the future by calculating actions over a period of time.
Counting is the action of finding the number of elements of
a finite set of objects.
Work Sheets.
Subitizing is the rapid, accurate, and confident judgments
of numbers performed for small numbers of items.
List of Numbers Enumeration
is a complete, ordered listing of all the items in a collection.
Sum is a quantity obtained by the
addition of a group of numbers. The whole amount. A set containing all and
only the members of two or more given sets.
Quantity is how much there is or how many
there are of something that you can quantify or add up or
measure.
Summation is the
addition of a sequence of numbers; the result is their sum or total.
Summary.
Extra is something added. Something
additional of the same kind. Beyond or more than is needed, desired, or
required.
Polynomial is a mathematical function that
is the sum of a number of terms. Polynomial is an expression of more than
two algebraic terms, especially the sum of several terms that contain
different powers of the same variable(s). A Latin name with more than two
parts.
Polynomial
is an expression consisting of variables (also called indeterminates) and
coefficients, that involves only the operations of addition, subtraction,
multiplication, and non-negative integer exponents of variables. An
example of a polynomial of a single indeterminate, x, is x2 - 4x + 7. An
example in three variables is x3 + 2xyz2 - yz + 1.
Subtracting - Minus
Subtraction is a mathematical operation that represents the
operation of removing objects from a collection. It is signified by the
minus sign (−).
When we have less.
Predicting shortages when we have less of something.
Decay.
Dividing - Repeated Subtraction - Sharing
Division is an arithmetic operation that is the
inverse of multiplication; if a × b = c, then a = c ÷ b, as long as b is
not zero. Division by zero is undefined for the real numbers and most
other contexts, because if b = 0, then a cannot be deduced from b and c,
as then c will always equal zero regardless of a. In some contexts,
division by zero can be defined although to a limited extent, and limits
involving division of a real number as it approaches zero are defined.
Division is the act of
equally partitioning
numbers or things into parts, pieces, or sections that are separated by a boundary that divides
them or keeps them apart or separate. Division is the
quotient of two numbers when computed. Quotient is the
ratio of two quantities to be divided.
Division is one of the four basic operations of
arithmetic, the others being addition,
repeated subtraction, and multiplication.
The division of two natural numbers is the process of calculating the
number of times one number is contained within one another. For
example, in the picture on the right, the 20 apples are divided into
groups of five apples, and there exist four groups, meaning that five can
be contained within 20 four times, or 20 ÷ 5 = 4.
Dividing is about
Sharing. How much will each of us have if we
equally divide?
How much will each of us need if we all use the same amount?
Divide is to separate into parts or portions.
Make a division or separation.
Share is
to use jointly or in common. Give, or receive a share of.
Sharing
Equal is having the same quantity,
value, or
measure as another.
Be identical or equivalent to. Make equal, uniform,
corresponding, or matching.
Square-Free Integer is an
integer which is
divisible by no perfect square other than 1. For example, 10 is
square-free but 18 is not, as 18 is divisible by 9 = 32. The smallest
positive square-free numbers are 1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17,
19, 21, 22, 23, 26, 29, 30, 31, 33, 34, 35, 37, 38, 39, ... (sequence
A005117 in the OEIS).
Proportion is
the
balance among the parts of
something.
Harmonious arrangement or relation of
parts or elements within a whole (as in a design). The relation between
things (or parts of things) with respect to their comparative quantity,
magnitude, or degree. The quotient obtained when the magnitude of a part
is
divided by the magnitude of the whole.
Magnitude or extent. Adjust in size relative to other things. A part,
share, or number considered in comparative relation to a whole.
Whole is including all components without
exception; being one unit or constituting the full amount or extent or
duration; complete.
Part is something
determined in relation to something that includes it. A portion of a
natural object. One of the portions into which something is regarded as
divided and which together constitute a whole.
Graduated is something marked with or
divided into
degrees. To make fine adjustments or
divide into marked intervals for optimal measuring.
Proportionality in mathematics states that two
variables
are proportional if there is always a constant
ratio
between them. The constant is called the coefficient of proportionality or
proportionality constant. If one variable is always the product of the
other variable and a constant, the two are said to be directly
proportional. x and y are directly proportional if the ratio y/x is
constant. If the product of the two variables is always a constant, the
two are said to be inversely proportional. x and y are inversely
proportional if the product xy is constant.
Fractions - Part of a Whole
Fraction represents a part of a whole or, more
generally, any number of equal parts. When spoken in everyday English, a
fraction describes how many parts of a certain size there are, for
example, one-half, eight-fifths, three-quarters. A common, vulgar, or
simple fraction (examples: 1 2 {\displaystyle {\tfrac {1}{2}}} {\tfrac
{1}{2}} and 17/3) consists of an integer numerator displayed above a line
(or before a slash), and a non-zero integer denominator, displayed below
(or after) that line. Numerators and denominators are also used in
fractions that are not common, including compound fractions, complex
fractions, and mixed numerals.
Fractions Poster (image)
Visual
Fractions -
Fractions
Lowest
Common Denominator is the lowest common multiple of the denominators
of a set of fractions. It simplifies adding, subtracting, and comparing
fractions. The lowest common denominator of a set of fractions is the
lowest number that is a multiple of all the denominators: their lowest
common multiple. The product of the denominators is always a common
denominator.
Least Common
Multiple of two integers a and b, usually denoted by LCM(a, b), is the
smallest positive integer that is divisible by both a and b. Since
division of integers by zero is undefined, this definition has meaning
only if a and b are both different from zero. However, some authors define
lcm(a,0) as 0 for all a, which is the result of taking the lcm to be the
least upper bound in the lattice of divisibility. The LCM is the "lowest
common denominator" (LCD) that can be used before fractions can be added,
subtracted or compared. The LCM of more than two integers is also
well-defined: it is the smallest positive integer that is divisible by
each of them.
Multiplying - Repeated Addition
Multiplication
of whole numbers may be thought as a
repeated addition; that is,
the multiplication of two numbers is equivalent to adding as many copies
of one of them, the multiplicand, as the value of the other one, the
multiplier. Normally, the multiplier is written first and multiplicand
second, though this can vary, as the distinction is not very meaningful.
(Times Symbol is X).
Multiplication Table (image)
Discovering the power of many.
Predicting
Growth based on many different inputs. Predicting
consumption amounts and
production amounts based how
many people.
Exponentiation is a mathematical operation, written as bn,
involving two numbers, the base b and the exponent n. When n is a positive
integer, exponentiation corresponds to repeated multiplication of the
base: that is, bn is the product of multiplying n bases.
Fold Change is a
measure describing how much a quantity changes going from an initial to a
final value. For example, an initial value of 30 and a final value of 60
corresponds to a fold change of 1 (or equivalently, a change to 2 times),
or in common terms, a one-fold increase. Fold change is calculated simply
as the ratio of the difference between final value and the initial value
over the original value. Thus, if the initial value is A and final value
is B, the fold change is (B - A)/A or equivalently B/A - 1. As another
example, a change from 80 to 20 would be a fold change of -0.75, while a
change from 20 to 80 would be a fold change of 3 (a change of 3 to 4 times
the original).
Square in algebra is the result of multiplying a number by itself. For example, 9 is a
Square Number, since it can be written as 3
times 3. 3 squared = 9. (3
2=9).
Trachtenberg
System is a system of rapid mental calculation. The system consists of
a number of readily memorized operations that allow one to perform
arithmetic computations very quickly. (add a zero before the number being
multiplied).
Multiplication Algorithm is an
algorithm
(or method) to multiply two numbers. Depending on the size of the numbers,
different algorithms are in use. Efficient multiplication algorithms have
existed since the advent of the
decimal system.
The most important algorithms are the ones for general multiplication,
division and addition.
Algebra - Unknown Factors
Algebra is when several of the
factors of a
problem are
known and one or
more are
unknown.
Algebra uses
alphabetic characters representing a number
which is either arbitrary or not fully specified or unknown.
Algorithm
-
Correlation.
Abstract Algebra is the study of algebraic structures.
Algebraic structures include
groups,
rings,
fields,
modules,
vector spaces,
lattices, and
algebras.
Elementary
Algebra differs from arithmetic in the use of abstractions,
such as using letters to stand for numbers that are either unknown or
allowed to take on many values. For example, in x + 2 = 5, the letter x is
unknown, but the law of inverses can be used to discover its value: x = 3.
In
E = mc2, the letters E and m are
variables, and the letter c is a constant, the
speed of light in a vacuum. Algebra gives methods for solving equations
and expressing formulas that are much easier (for those who know how to
use them) than the older method of writing everything out in words.
Functions.
Linear
Algebra is the branch of mathematics concerning vector
spaces and linear mappings between such spaces. It includes the study of
lines, planes, and subspaces, but is also concerned with properties common
to all vector spaces.
Boolean
Algebra is the branch of algebra in which the values of the
variables
are the truth values true and false, usually denoted
1 and 0 respectively.
Square in algebra is the result of multiplying a number by
itself.
Polynomial is an expression consisting of
variables (or indeterminates) and coefficients, that involves only the operations of
addition, subtraction, multiplication, and non-negative integer exponents.
Separable Polynomial.
Quadratic Equation
is any equation having the form where x represents an unknown, and
a, b, and c represent known numbers such that a is not equal to 0. If a =
0, then the equation is linear, not quadratic.
Symbols (letters)
Mathematical Symbols (wiki)
Logic Symbols (wiki)
Logic Alphabet also called the X-stem Logic Alphabet (XLA),
constitutes an iconic set of symbols that systematically represents the
sixteen possible binary truth functions of
logic.
Lattice -
Deductive
Reasoning
Converse
in logic "If I am a bachelor, then I am an unmarried man" is
logically equivalent to "If I am an unmarried man, then I am a bachelor."
Interpolation in mathematics is the
calculation of the value of a function between
the values already known.
Interpolation is
a method of constructing new data points within the range of a discrete
set of known data points. Interpolate is to
estimate
the value of that function for an intermediate value of the independent
variable.
Interpolation can also mean the insertion of
something of a different nature into
something else. A message that is spoken or written that is introduced or
inserted.
Seeing all
the Layers of Information underneath and not just see the
Surface.
Geometry - Shapes, Sizes, Positions
Geometry is a branch of mathematics concerned with questions
of
shape,
size, relative
position of figures, and the properties of
space.
Mathematics of points, lines, curves,
circles,
angles, surfaces
and planes.
Euclidean geometry the study of
plane and
solid figures on the basis of
axioms and theorems employed by the
Greek mathematician
Euclid
around 323–283 BC. In its rough outline, Euclidean geometry is the plane
and solid geometry commonly taught in secondary schools.
Congruence in geometry two figures or objects are
congruent if they have the same
shape and size, or if one has the same
shape and size as the mirror image of the other.
Optical
Illusions.
Computational Geometry
is a branch of
computer science devoted to the study of
algorithms which
can be stated in terms of geometry.
Sacred
Geometry.
Proportion is a central principle of
architectural theory and an
important connection between mathematics and
art. It is the visual effect
of the relationships of the various objects and spaces that make up a
structure to one another and to the whole. These relationships are often
governed by multiples of a standard unit of length known as a "module".
Line in the plane is often defined as the set of
points whose
coordinates satisfy a given linear equation, but in a more abstract
setting, such as
incidence geometry, a line may be an independent object, distinct from
the set of points which lie on it.
Axis
is a straight line through a body or figure that satisfies certain
conditions. The center around which something
rotates.
Linearity is something that can be graphically represented as a
straight line.
Linear is relating to a line; involving a single dimension.
________________
Angles.
Point is the
precise
location of something; a
spatially limited
location. A geometric element that has
position but no extension.
Point can also be a
symbol.
Plane in geometry is a
flat,
two-dimensional surface that extends
infinitely far. A plane is the
two-dimensional analogue of a point (zero
dimensions), a line (one dimension) and three-dimensional space. Planes
can arise as subspaces of some higher-dimensional space, as with a room's
walls extended infinitely far, or they may enjoy an independent existence
in their own right, as in the setting of
Euclidean geometry.
Planar is something involving two
dimensions.
Navigation -
Orbital Plane.
Grade-school students teach a Robot to help themselves Learn Geometry.
Amorphous is something that has no
definite form or distinct shape, something lacking in system or structure
that is characteristic of living bodies, something without real or
apparent crystalline form.
Shapes - Dimensions - Patterns
Shapes is the form of an object or its external
boundary, outline, or external surface, as opposed to other properties
such as
color, texture, or
material composition.
Symbols -
Visual Language.
Geometric Shape
is the
geometric information which remains when
location, scale, orientation and reflection are removed from the
description of a geometric object. That is, the result of moving a shape
around, enlarging it, rotating it, or reflecting it in a mirror is the
same shape as the original, and not a distinct shape. Objects that have
the same shape as each other are said to be similar. If they also have the
same scale as each other, they are said to be congruent. Many
two-dimensional
geometric shapes can be defined by a set of points or
vertices and lines connecting the points in a closed chain, as well as the
resulting interior points. Such shapes are called polygons and include
triangles, squares, and pentagons. Other shapes may be bounded by curves
such as the circle or the ellipse. Many three-dimensional
geometric shapes can be defined by a set of vertices, lines
connecting the vertices, and
two-dimensional faces enclosed by those lines, as well as the
resulting interior points. Such shapes are called polyhedrons and include
cubes as well as pyramids such as tetrahedrons. Other three-dimensional
shapes may be bounded by curved surfaces, such as the ellipsoid and the
sphere. A shape is said to be convex if all of the points on a line
segment between any two of its points are also part of the shape.
Geometric Modeling.
Mathematica Object is an abstract object arising in mathematics.
Structures -
Patterns
-
Symmetry
-
Dimensions (space) -
Polyhedron
Tetris is a
tile-matching puzzle video game.
Tetromino is a geometric shape composed of four squares, connected
orthogonally. This, like
dominoes and
pentominoes, is a particular type of
polyomino. The corresponding polycube, called a tetracube, is a
geometric shape composed of four cubes connected orthogonally.
Tetris Effect occurs when people devote so much
time
and attention to an activity that it begins to pattern their thoughts,
mental images, and dreams.
Edge in geometry is a particular type of line segment joining two
vertices in a polygon, polyhedron, or higher-dimensional polytope.
Vertex in geometry is a point where two or more curves, lines, or edges
meet.
Apex also know as summit, peak, tip, top, or extreme end, is the
vertex which is in some sense the "highest" of the figure to which it
belongs. The term is typically used to refer to the vertex opposite from
some "base."
Rectangle is a quadrilateral with four right
angles.
Triangle is a
polygon with
three edges and
three
vertices.
Trigonometry.
Equilateral Triangle is a triangle in which
all three sides have the same length. In the familiar Euclidean
geometry, an equilateral triangle is also equiangular; that is, all three
internal angles are also congruent to each other and are each 60°. It is
also a regular polygon, so it is also referred to as a regular triangle.
Isosceles Triangle is a triangle that has
two sides of equal length.
Golden Triangle in mathematics is an
isosceles triangle in which the
duplicated side is in the
golden ratio to the
distinct side: Golden triangles are found in the nets of several
stellations of dodecahedrons and icosahedrons. (also known as the sublime
triangle).
Square is a regular quadrilateral, which means that it has
four equal sides and four equal angles (90-degree angles, or right
angles). It can also be defined as a rectangle in which two adjacent sides have equal length.
Cube.
Square–Cube Law describes the relationship between the volume and the
area as a shape's size increases or decreases.
Inverse-square law is any physical law stating that a specified
physical quantity or intensity is inversely proportional to the square of
the distance from the source of that physical quantity. The fundamental
cause for this can be understood as geometric dilution corresponding to
point-source radiation into three-dimensional space.
Cube is a
hexahedron with six
equal squares as faces. A
three-dimensional
shape with six square or rectangular sides.
Hypercubes
is an n-dimensional analogue of a square (n = 2) and a cube (n = 3).
Tesseract is the four-dimensional analog of the cube; the tesseract is
to the cube as the cube is to the square. Just as the surface of the cube
consists of six square faces, the hypersurface of the tesseract consists
of eight cubical cells. The tesseract is one of the six convex regular 4-polytopes.
Rhombus
is a simple (non-self-intersecting) quadrilateral whose four sides all have the same length.
Flower of Life
-
Spatial Awareness
Scutoid
is a geometric solid between two parallel surfaces. The boundary of each
of the surfaces (and of all the other parallel surfaces between them) is a
polygon, and the vertices of the two end polygons are joined by either by
a curve or a Y-shaped connection. Scutoids present at least one vertex
between these two planes. The faces of the scutoids are not necessarily
convex, so several scutoids can pack together to fill all the space
between the two parallel surfaces. The object was first described in
Nature Communications in July 2018, and the name scutoid was coined
because of its resemblance to the shape of the scutum and scutellum in
some insects, such as beetles in the
Cetoniidae subfamily.
Circles - Radius
Circle is a simple
closed shape in Euclidean
geometry. It is
the set of all points in a plane that are at a given distance from a given point, the
centre; equivalently it is the
curve traced out by a
point that
moves so that its distance from a given point is constant. The distance
between any of the points and the center is called the radius.
Round is something having a circular
shape. Wind around; move along a circular course. On all sides; so as to
encircle.
Orbit -
Pi -
Angle of Rotation
-
Polygons -
Bubbles
Arc is a continuous portion of a
circle. Something curved in shape. Form an arch or curve.
Radius
is a
straight line from the center to the circumference of a circle or
sphere. Of a circle or sphere is any of the line segments from its center to its
perimeter, and in more modern usage, it is the length of any of them.
Diameter of a circle
is any
straight line segment that passes through the center of the
circle
and whose endpoints lie on the circle.
180 Degrees.
Circumference of
a closed curve or circular object is the linear distance around its edge.
Pi is the
Ratio of a
circle's circumference to its diameter. (3.14159). Dividing the
circumference by its diameter will equal 3.1. The circumference is a
little over 3 times the size of the diameter. Circumference of Earth is
24,901 miles, divided by Pi or 3.1415 = Diameter 7,926 miles, then divided
by 2.002 = Radius of
Earth is 3,959 miles.
Cylinder
is the surface formed by the points at a fixed distance from a given
straight line called the axis of the cylinder. It is one of the most basic
curvilinear geometric shapes.
Curve is an object
similar to a line that is not straight or flat.
There are no straight
lines in the universe, everything eventually curves.
Curvature is the amount by which a geometric object such as a surface
deviates from being a flat plane, or a curve from being straight as in the
case of a line, but this is defined in different ways depending on the context.
Curves we
(mostly) don't learn in high school (and applications) (youtube)
Spiral
is a curve which emanates from a point, moving farther away as it revolves around the point.
Golden Spiral.
Ulam
Spiral is a graphical depiction of the set of prime numbers.
Sphere is a perfectly round geometrical object in
three-dimensional space that is the
surface of a completely
round ball, (viz., analogous to a circular object in two dimensions. (12 around 1).
Sphere within a Sphere is a bronze sculpture by Italian sculptor Arnaldo Pomodoro.
Spheres in the Vacuum of Space
Train Wheels have
a conical geometry, which is the primary means of keeping the train's
motion aligned with the track. Train wheels have a flange on one side to
keep the wheels, and hence the train, running on the rails, when the
limits of the geometry-based alignment are reached, e.g. due to some
emergency or defect. Some wheels have a cylindrical geometry, where
flanges are essential to keep the train on the rail track.
Conical Surface is the unbounded surface formed by the union of all
the straight lines that pass through a fixed point — the apex or vertex —
and any point of some fixed space curve — the directrix — that does not
contain the apex. Each of those lines is called a generatrix of the
surface. Every conic surface is ruled and developable. In general, a
conical surface consists of two congruent unbounded halves joined by the
apex. Each half is called a nappe, and is the union of all the rays that
start at the apex and pass through a point of some fixed space curve.
(In some cases, however, the two nappes may intersect, or even coincide
with the full surface.) Sometimes the term "conical surface" is used to mean just one nappe.
Cone is a
three-dimensional geometric shape that tapers smoothly from a flat base
(frequently, though not necessarily, circular) to a point called the apex or vertex.
Polyhedrons - Number of Faces
Platonic Solid is a regular, convex polyhedron in three-dimensional
space. It is constructed by congruent regular polygonal faces with the
same number of faces meeting at each vertex. Five solids meet those
criteria, and each is named after its number of faces.
Symmetry -
Bucky Ball -
Domes -
Bubbles
Polyhedron is a solid in
three dimensions with flat polygonal faces,
straight edges and sharp corners or vertices.
Pyramid
Triangles.
Goldberg Polyhedron is a convex polyhedron made from
hexagons and pentagons.
Tetrahedron is a
polyhedron composed of
4 triangular
faces, 6 straight edges, and 4 vertex corners. The tetrahedron, also known
as a
triangular pyramid, is the
simplest of all the ordinary convex polyhedra and the only one that has
fewer than
5 faces. Volume: (√2)/12 ×
a³ - Surface area: √3 × a² - Base shape:
Triangle. Shapes with similar
faces: Octahedron, Icosahedron, Triangular
prism, Square pyramid,
Hexagonal pyramid, Pentagonal
pyramid.
Tetrahedral Number is a figurate number that represents a
pyramid with a triangular base and three sides, called a tetrahedron. The
nth tetrahedral number is the sum of the first n triangular numbers. The
first ten tetrahedral numbers are: 1, 4, 10, 20, 35, 56, 84, 120, 165,
220.
Cube is a
three-dimensional solid object bounded by
six square faces, facets or
sides, with three meeting at each vertex.
Octahedron is a
polyhedron with
eight faces, twelve edges, and six vertices. The term is
most commonly used to refer to the regular octahedron, a Platonic solid
composed of eight equilateral triangles, four of which meet at each
vertex. A regular octahedron is the dual polyhedron of a cube. It is a
rectified tetrahedron. It is a square bipyramid in any of three orthogonal
orientations. It is also a triangular antiprism in any of four
orientations. An octahedron is the three-dimensional case of the more
general concept of a cross polytope.
Dodecahedron is any polyhedron with
twelve flat faces. The most
familiar dodecahedron is the regular dodecahedron, which is a Platonic
solid. There are also three regular star dodecahedra, which are
constructed as stellations of the convex form. All of these have
icosahedral symmetry, order 120.
Regular
Dodecahedron is composed of twelve regular
pentagonal faces, three meeting at each vertex. It is one of the
five Platonic solids. It has 12 faces, 20 vertices, 30 edges, and 160
diagonals (60 face diagonals, 100 space diagonals). It is represented by
the Schläfli symbol {5,3}.
Pentagon
is any
five-sided polygon or 5-gon. The sum of the
internal angles in a simple pentagon is 540°. A pentagon may be simple or
self-intersecting. A self-intersecting regular pentagon (or star pentagon)
is called a pentagram.
The 15th kind of Pentagon that can Tile a Plane.
Pentagon
Tiling is a tiling of the plane where each individual piece
is in the shape of a
pentagon.
Pentagram is the shape of a
five-pointed star drawn with
five straight strokes.
Triangles.
Hexagon
is a
six-sided polygon or 6-gon. The total
of the internal angles of any simple (non-self-intersecting) hexagon is
720°. A regular hexagon is defined as a hexagon that is both equilateral
and equiangular. It is bicentric, meaning that it is both cyclic (has a
circumscribed circle) and tangential (has an inscribed circle).
Honeycomb.
Hexagonal Prism is a prism with hexagonal base. This polyhedron has 8
faces, 18 edges, and 12 vertices. Since it has 8 faces, it is an
octahedron. However, the term octahedron is primarily used to refer to the
regular octahedron, which has eight triangular faces. Because of the
ambiguity of the term octahedron and tilarity of the various eight-sided
figures, the term is rarely used without clarification. Before sharpening,
many pencils take the shape of a long hexagonal prism.
Prism in geometry is a polyhedron comprising an n-sided polygonal
base, a second base which is a translated copy (rigidly moved without
rotation) of the first, and n other faces (necessarily all parallelograms)
joining corresponding sides of the two bases. All cross-sections parallel
to the bases are translations of the bases. Prisms are named for their
bases, so a prism with a pentagonal base is called a pentagonal prism. The
prisms are a subclass of the prismatoids.
Crystals.
Hexagram
is a
six-pointed geometric star with two
equilateral triangles. Equilateral triangle is a
triangle in which
all three sides are equal. The hexagram is part of an
infinite series of shapes which are compounds of two n-dimensional simplices. In three dimensions, the analogous compound is the stellated
octahedron, and in four dimensions the compound of two 5-cells is
obtained. N is a vector space having n vectors as its basis.
Icosahedron is a
polyhedron with
20
faces. There are infinitely many non-similar shapes of icosahedra,
some of them being more symmetrical than others. The best known is the
(convex, non-stellated) regular icosahedron—one of the Platonic
solids—whose faces are 20 equilateral triangles.
Face in
geometry is a
flat surface that forms part of the
boundary of a solid object. A three-dimensional solid bounded exclusively
by flat faces is a polyhedron. In more technical treatments of the
geometry of polyhedra and higher-dimensional polytopes, the term is also
used to mean an element of any
dimension of a more general polytope, in
any number of dimensions.
Boundary is the
line or
plane indicating the limit
or extent of something. A line determining the limits of an area. The
greatest possible degree of something.
Wall.
Polygon
is
a closed plane figure bounded by straight sides
or a plane figure that is bounded by a finite chain of straight line
segments closing in a loop to form a closed polygonal chain or circuit.
These segments are called its edges or sides, and the points where two
edges meet are the polygon's vertices (singular: vertex) or corners. The
interior of the polygon is sometimes called its body. An n-gon is a
polygon with n sides; for example, a triangle is a 3-gon. A polygon is a
2-dimensional example of the more general polytope in any number of
dimensions.
Octagon is an
eight-sided polygon or 8-gon.
Pythagorean Theorem (wiki) -
Truncated Octahedron (wiki)
Cuboctahedron is a polyhedron with 8 triangular faces
and 6 square faces. A cuboctahedron has 12 identical vertices, with 2
triangles and 2 squares meeting at each, and 24 identical edges, each
separating a triangle from a square.
Tetradecahedron is a polyhedron with 14 faces. There are numerous
topologically distinct forms of a tetradecahedron, with many constructible
entirely with regular polygon faces. A tetradecahedron is sometimes called
a tetrakaidecahedron.
Skin.
Trapezoid is a quadrilateral with two
parallel sides. The wrist bone between the trapezium and the capitate
bones. Trapezoidal is something resembling a trapezoid.
Quadrilateral is a polygon in Euclidean plane
geometry with four edges (sides) and four vertices (corners). Other
names for quadrilateral include quadrangle (in analogy to triangle),
tetragon (in analogy to pentagon, 5-sided polygon, and hexagon, 6-sided
polygon), and 4-gon (in analogy to k-gons for arbitrary values of k).
Optical
Illusions.
Three-Dimensional Space -
Dimensions
Weaire-Phelan Structure is a complex 3-dimensional structure
representing an idealised
foam of
equal-sized bubbles.
Tessellation of a flat surface is the tiling of a plane
using one or more geometric shapes, called tiles, with no overlaps and no
gaps.
Parallelogram is a simple (non-self-intersecting)
quadrilateral with two pairs of
parallel sides. The opposite or facing
sides of a parallelogram are of equal length and the opposite angles of a
parallelogram are of equal measure.
Vector is a variable quantity that can be resolved into
components. A straight line segment whose length is magnitude and whose
orientation in space is direction.
Vector in mathematics and physics is an element
of a vector space. In physics and geometry, a Euclidean vector, used to
represent physical quantities that have both magnitude and direction.
Complex
Plane or z-plane, is a geometric representation of the
complex numbers established by the real axis and the perpendicular
imaginary axis. It can be thought of as a modified Cartesian plane, with
the real part of a complex number represented by a displacement along the
x-axis, and the imaginary part by a displacement along the y-axis.
Polygonal Chain is a connected series of
line
segments. More formally, a polygonal chain P is a curve specified by a
sequence of points ( A 1 , A 2 , … , A n ) called its
vertices. The curve itself consists of the line segments connecting
the consecutive vertices. A polygonal chain may also be called a polygonal
curve, polygonal path, polyline, piecewise linear curve, or, in
geographic information systems, a linestring or linear ring.
Origami
is the art of paper folding, which is often associated with Japanese culture.
Mathematics of Paper Folding
(wiki)
-
Box
Pleat -
Programmable Matter
-
Creativity.
Topology - Properties of Space
Topology is the properties of
space that are preserved under
continuous deformations, such as stretching and bending, but not
tearing or gluing. Important topological properties include
connectedness and compactness.
Spatial intelligence
Topological Space
may be defined as a set of points, along with a set of neighbourhoods for
each point, satisfying a set of axioms relating points and neighborhoods.
Topography -
Geography
-
Euler
Problem Solving -
Management
Polynomial is an expression consisting of
variables
(or indeterminates) and coefficients, that involves only the operations of
addition, subtraction, multiplication, and non-negative integer exponents.
Geometric Progression is a sequence of numbers where each
term after the first is found by multiplying the previous one by a fixed,
non-zero number called the common
Ratio.
Scale -
Sizes -
Mind Maps
Graphs and
Charts using shapes, symbols
and images to communicate.
Graphing Calculator is a handheld computer that is capable of plotting
graphs, solving simultaneous equations, and performing other tasks with
variables. Most popular graphing calculators are also programmable,
allowing the user to create customized programs, typically for
scientific/engineering and education applications. Because they have large
displays in comparison to standard 4-operation handheld calculators,
graphing calculators also typically display several lines of text and
calculations at the same time.
Computer Algebra System is any mathematical software with the ability
to manipulate mathematical expressions in a way similar to the traditional
manual computations of mathematicians and scientists.
Trigonometry - Measuring Triangles
Trigonometry is the science of measuring
triangles.
A triangle is a
polygon with three edges and three
vertices. It is one of the basic
shapes in geometry. A
triangle with vertices A, B, and C.
Trigonometry is a branch of mathematics that studies
relationships involving lengths and
angles
of triangles. The field emerged in the Hellenistic world during the 3rd
century BC from applications of geometry to astronomical studies.
Navigation.
Trigonometric Functions (wiki)
Polygon
is a plane figure that is bounded by a finite chain of
straight line
segments closing in a loop to form a
closed
chain or circuit.
Pyramid is a structure
whose outer surfaces are
triangular and converge to a single point at the
top, making the shape roughly a
pyramid in the geometric sense. The base of a pyramid can be
trilateral, quadrilateral, or any
polygon shape. A pyramid has at least
three outer triangular surfaces (at least four faces including the base).
The
square pyramid, with
square base and four triangular outer surfaces,
is a common version.
Polyhedron
Slope or
gradient of a line is a number that describes both the direction and the
steepness of the line. Slope is calculated by finding the ratio of the
"vertical change" to the "horizontal change" between (any) two distinct
points on a line.
Frustum is the portion of a solid (normally a cone or pyramid) that
lies between one or two parallel planes cutting it. A right frustum is a
parallel truncation of a right pyramid or right cone.
Harmonic Mathematics terminology to that of music is not
accidental: the
equations of
motion of vibrating strings, drums and columns of air are given by
formulas involving Laplacians; the solutions to which are given by
eigenvalues corresponding to their modes of vibration. Thus, the term
"harmonic" is applied when one is considering functions with sinusoidal
variations, or solutions of Laplace's equation and related concepts.
Sine
of an angle is defined in the context of a
right triangle: for the specified angle, it is the ratio of the length
of the side that is opposite that angle (that is not the hypotenuse) to
the length of the longest side of the triangle (i.e., the
hypotenuse).
Pythagorean
Theorem is a fundamental relation in
Euclidean geometry among the three sides of a right triangle. It
states that the area of the square whose side is the hypotenuse (the side
opposite the right angle) is equal to the sum of the areas of the squares
on the other two sides. This theorem can be written as an equation
relating the lengths of the sides a, b and c, often called the
"Pythagorean equation" A squared plus B squared equals C squared, where c
represents the length of the hypotenuse and a and b the lengths of the triangle's other two sides.
Hypotenuse is the longest side of a right-angled triangle, the side
opposite the right angle. The length of the hypotenuse of a right triangle
can be found using the Pythagorean theorem, which states that the square
of the length of the hypotenuse equals the sum of the squares of the
lengths of the other two sides. For example, if one of the other sides has
a length of 3 (when squared, 9) and the other has a length of 4 (when
squared, 16), then their squares add up to 25.
The length of the hypotenuse is the square root of 25, that is, 5.
Special Right Triangle is a
right triangle with some regular feature that makes calculations on
the triangle easier, or for which simple formulas exist. For example, a
right triangle may have angles that form simple relationships, such as
45°–45°–90°. This is called an "angle-based" right triangle. A
"side-based" right triangle is one in which the lengths of the sides form
ratios of whole numbers, such as 3 : 4 : 5, or of other special numbers
such as the
golden ratio. Knowing the relationships of the angles or
ratios of sides of these special right triangles allows one to quickly
calculate various lengths in geometric problems without resorting to more
advanced methods.
Angles - Degrees
Angle is the space
between two
lines or planes that intersect; the
inclination of one line to another; measured in degrees or
radians,
which is the standard unit of angular measure.
Degree is a measurement of a plane angle, defined so that a full
rotation is
360 degrees.
Triangulation -
Navigation.
Angle in
planar geometry, an angle is the figure formed by two
rays, called the
sides of the angle, sharing a common endpoint, called the
vertex of
the angle. Angles formed by two rays lie in a plane, but this plane does
not have to be a
Euclidean plane. Angles are also formed by the intersection of two
planes in Euclidean and other spaces. These are called dihedral angles.
Angles formed by the intersection of two curves in a plane are defined as
the angle determined by the tangent rays at the point of intersection.
Similar statements hold in space, for example, the spherical angle formed
by two great
circles on a sphere is the
dihedral angle between the planes determined by the great circles.
Golden Angle.
Angular of an object, outline, or shape
having angles or sharp corners. Denoting physical properties or quantities
measured with reference to or by means of an angle, especially those
associated with
rotation. Something
measured by an angle or by the rate of change of an angle. Having angles
or an angular shape.
Speed Square.
Protractor is a measuring instrument for measuring angles, typically
made of transparent plastic or glass.
Grade
or
Slope of a physical feature, landform or constructed line,
refers to the tangent of the angle of that surface to the horizontal. It
is a special case of the slope, where zero indicates horizontality. A
larger number indicates higher or steeper degree of "tilt". Often slope is
calculated as a ratio of "rise" to "run", or as a fraction ("rise over
run") in which run is the horizontal distance (not the distance along the
slope) and rise is the vertical distance. The grades or slopes of existing
physical features such as canyons and hillsides, stream and river banks
and beds are often described. Grades are typically specified for new
linear constructions (such as roads, landscape grading, roof pitches,
railroads, aqueducts, and pedestrian or bicycle circulation routes). The
grade may refer to the longitudinal slope or the perpendicular cross
slope. (also called slope, incline, gradient, mainfall, pitch or rise).
Grade is the gradient of a slope or road or
other surface. The height of the ground on which something stands. A
position on a scale of intensity or amount or quality. One-hundredth of a
right angle.
Grade as a Score.
Angle of Rotation is a measurement of the amount, namely the angle,
that a figure is rotated about a fixed point, often the
center of a circle. A clockwise rotation is considered a negative
rotation, so that, for instance, a rotation of 310° (counterclockwise) can
also be called a rotation of –50° (since 310° + 50° = 360°, a full
rotation (turn)). A counterclockwise rotation of more than one complete
turn is normally measured modulo 360°, meaning that 360° is subtracted off
as many times as possible to leave a non-negative measurement less than
360°. For example, the carts on a Ferris wheel move along a circle around
the center point of that
circle. If a cart moves
around the wheel once, the angle of rotation is 360 degrees. If the cart
was stuck halfway, at the top of the wheel, at that point its angle of
rotation was only 180 degrees. This is also referred to as the "order of
symmetry." Angles are commonly measured in degrees, radians, gons (gradians)
and turns, sometimes also in angular mils and binary radians. They are
central to polar coordinates and
trigonometry.
Plane of Rotation is an abstract object used to describe or
visualize rotations in space. In three
dimensions it is an alternative to the axis of rotation, but unlike the
axis of rotation it can be used in other dimensions, such as two, four or
more dimensions.
Plane.
Rotational Symmetry also known as radial
symmetry
in biology, is the property a shape has when it looks the same after some
rotation by a partial turn. An object's degree of rotational symmetry is
the number of distinct orientations in which it looks exactly the same for
each rotation.
Hinge is
a mechanical bearing that connects two solid objects, typically allowing
only a
limited angle of rotation between
them. Two objects connected by an ideal hinge rotate relative to each
other about a fixed axis of rotation: all other translations or rotations
being prevented, and thus a hinge has one degree of freedom. Hinges may be
made of flexible material or of moving components. In biology, many joints
function as hinges like the elbow joint.
Degree in Relation to Angles, usually
denoted by the
degree symbol (°), is a measurement of a plane angle,
defined so that a full rotation is 360 degrees. It is not an SI unit, as
the SI unit of angular measure is the radian, but it is mentioned in the
SI brochure as an accepted unit. Because a
full rotation equals 2π
radians, one degree is equivalent to π/180 radians. (in full, a degree of arc, arc degree, or
arc-degree).
Temperature.
Degree is a
measure
for arcs and angles. A position on a
scale of intensity or amount or quality. A specific identifiable
position in a continuum or series or especially in a process. A unit of
temperature on a specified scale.
Horizontal is
parallel to the ground or
flat on the
water or in the
plane of the horizon or a base
line at right angles to the
vertical.
Latitude -
Parallel Wiring.
Vertical is straight
up and down or in an
upright position or posture. At right angles to the plane of the horizon
or a base line.
Longitude -
Horizontal
and Vertical (wiki).
Altitude
is a
distance measurement,
usually in the vertical or "
up" direction, between a reference datum and a
point or object. The reference datum also often varies according to
the context. Although the term altitude is commonly used to mean the
height above sea level of a location, in geography the term elevation is
often preferred for this usage.
Spirit Level or bubble level or simply a level is an instrument
designed to indicate whether a surface is horizontal (level) or vertical
(plumb). Different types of spirit levels may be used by carpenters,
stonemasons, bricklayers, other building trades workers, surveyors,
millwrights and other metalworkers, and in some photographic or
videographic work.
Level Instrument is an optical instrument used to establish or verify
points in the same horizontal plane in a process known as levelling, and
is used in conjunction with a levelling staff to establish the relative
heights levels of objects or marks. It is widely used in surveying and
construction to measure height differences and to transfer, measure, and
set heights of known objects or marks.
Levelling is a
branch of surveying, the object of which is to establish or verify or
measure the height of specified points relative to a datum. It is widely
used in cartography to measure geodetic height, and in construction to
measure height differences of construction artifacts.
Vanishing Point
is a point on the image plane of a
perspective
drawing where the two-dimensional perspective projections (or
drawings) of mutually parallel lines in three-dimensional space appear to
converge. When the set of parallel lines is perpendicular to a picture
plane, the construction is known as one-point perspective, and their
vanishing point corresponds to the oculus, or "eye point", from which the
image should be viewed for correct perspective geometry. Traditional
linear drawings use objects with one to three sets of parallels, defining
one to three vanishing points.
Spatial
Intelligence.
Parallel in geometry are lines that are
side by side and having the
same distance continuously between them, like an
equal sign. Two lines in a plane that do not intersect or touch each
other at any point are said to be parallel. An imaginary line around the
Earth parallel to the equator.
Parallel in computing is the
simultaneous
performance of multiple operations.
Parallel Wiring.
Perpendicular is the relationship between two lines which meet at a
right angle (90 degrees). The property extends to other related geometric objects.
Right Angle is an
angle of exactly 90° (degrees), corresponding to a quarter turn.
Diagonal
is a line segment joining two vertices of a polygon or polyhedron, when
those vertices are not on the same edge. Informally, any sloping line is
called diagonal. In
matrix algebra,
a diagonal of a square matrix is a set of entries extending
from one corner to the farthest corner.
From angle to angle.
Radian is the standard
unit of angular measure, used in many areas of mathematics. The length of
an
arc of a unit circle is numerically equal to the measurement in radians
of the angle that it subtends; one radian is just under 57.3 degrees.
Turn in geometry is a unit of plane angle measurement equal to 2π
radians, 360 degrees or 400 gradians. A turn is also referred to as a
revolution or complete rotation or full circle or cycle or rev or rot.A
turn can be subdivided in many different ways: into half turns, quarter
turns, centiturns, milliturns, binary angles, points etc.
Truss
is a
structure that "consists of two-force members only, where the members
are organized so that the assemblage as a whole behaves as a single
object". A "two-force member" is a structural component where force is
applied to only two points. Although this rigorous definition allows the
members to have any shape connected in any stable configuration, trusses
typically comprise five or more triangular units constructed with straight
members whose ends are connected at
joints
referred to as nodes.
Triangle Center
is a point in the plane that is in some sense a center of a
triangle akin
to the centers of squares and circles, i.e. a point that is in the middle
of the figure by some measure.
Ancient Babylonian
Tablet - World's First Trig Table (youtube)
Trigonometry to calculate the elevation of a
mountain, scientists would measure the
distance between two points
on the ground and then measure the angles between the top of the mountain
and each point. "If you have two angles, you know the third, because the
sum of the
angles is 180 [degrees].
You can
calculate the height of an object using the
distance and
angle. distance * cos (angle), where distance is the horizontal
distance to the object, and angle is the angle above horizontal of the top
of the object (from the viewer). The result will be the height above the
viewer.
Surveying.
Tree Height Measurement is the vertical distance between the base of
the tree and the tip of the highest branch on the tree, and is difficult
to measure accurately.
How to measure a
tree (using your thumb or looking between your legs).
Topographic Prominence measures the height of a mountain or hill's
summit relative to the lowest contour line encircling it but containing no
higher summit within it. It is a measure of the independence of a summit.
A peak's key col (highest gap between two mountains) is a unique point on
this contour line and the parent peak is some higher mountain, selected
according to various objective criteria.
Deductive Reasoning
Eratosthenes was the first person to calculate the
circumference of the Earth more than 2000 years ago, which he did by
comparing
angles of the mid-day Sun at two places a
known North-South distance apart. His calculation was remarkably accurate.
He was also the first to calculate the tilt of the Earth's axis, again
with remarkable accuracy.
Calculus - Study of Change
Calculus is the mathematical study of change.
Calculating changes and
calculating the actions needed to
correctly adjust to these changes. The same
way that geometry is the study of shape and algebra is the study of
operations and their application to solving equations. It has two major
branches,
differential calculus (concerning rates of change and slopes of
curves), and
integral calculus (concerning accumulation of quantities and
the areas under and between curves); these two branches are related to
each other by the fundamental theorem of calculus. Both branches make use
of the fundamental notions of convergence of infinite sequences and
infinite series to a well-defined limit. Generally, modern calculus is
considered to have been developed in the 17th century by
Isaac Newton and
Gottfried Leibniz. Today, calculus has widespread uses in science,
engineering and economics and can solve many problems that elementary
algebra alone cannot.
Calculus 1 - limits and basic
Differentiation and integration.
Calculus 2 - more sophisticated
Integration techniques, and
infinite series.
Calculus 3 -
Multivariable calculus a.k.a.
vector calculus.
Limit is the value that a function or sequence "approaches" as the
input or index approaches some value. Limits are essential to calculus
(and mathematical analysis in general) and are used to define continuity,
derivatives, and integrals.
MIT 2006
Integration Bee Competitive Calculus (youtube)
Deductive Reasoning
Operation
in mathematics is a calculation from zero or more input values (called
operands) to an output value.
Operand is the object
of a mathematical operation, a quantity on which an operation is
performed. There are two common types of operations: unary and binary.
Unary operations involve only one value, such as negation and
trigonometric functions. Binary operations, on the other hand, take
two values, and include addition, subtraction, multiplication, division,
and exponentiation.
Unary Operation
is an operation with only one operand, i.e. a single input. An example is
the function f : A - A, where A is a set. The function f is a unary
operation on A.
Binary Operation
on a set is a calculation that
combines two elements of the set (called
operands) to produce another element of the set (more formally, an
operation whose arity is two, and whose two domains and one codomain are
(subsets of) the same set). Examples include the familiar elementary
arithmetic operations of addition, subtraction, multiplication and
division. Other examples are readily found in different areas of
mathematics, such as vector addition,
matrix multiplication and
conjugation in groups.
Differentials - Differences in Change of one Quantity Relative to Another
Differentials is the
instantaneous
change of one quantity
relative to another; df(x)/dx.
A quality that differentiates between similar things. The result of
mathematical differentiation. Differentiation is the process of finding a
derivative. The derivative of a function is the rate of change of the
output value with respect to its input value, whereas differential is the
actual change of function.
Differentiates is something marked as
different with a
distinctive feature, attribute, or trait.
Differential
Equations is a mathematical equation that relates some
function with its derivatives. In applications, the functions usually
represent physical quantities, the derivatives represent their rates of
change, and the equation defines a relationship between the two. Because
such relations are extremely common, differential equations play a
prominent role in many disciplines including engineering, physics,
economics, and biology.
Predictions -
Causality
Stochastic Differential Equation is a differential equation in which
one or more of the terms is a stochastic process, resulting in a solution
which is also a stochastic process. SDEs are used to model various
phenomena such as unstable stock prices or physical systems subject to
thermal fluctuations. Typically, SDEs contain a variable which represents
random white noise calculated as the derivative of Brownian motion or the
Wiener process. However, other types of random behaviour are possible,
such as jump processes.
Derivative of a
function of a real
variable measures the sensitivity to change of a
quantity (a function value or dependent variable) which is determined by
another quantity (the independent variable). Derivatives are a fundamental
tool of calculus. For example, the derivative of the position of a moving
object with respect to time is the object's velocity: this measures how
quickly the position of the object changes when time is advanced.
Quadratic Formula is the solution of the quadratic equation.
There are other ways to solve the quadratic equation instead of using the
quadratic formula, such as factoring, completing the square, or graphing.
Using the quadratic formula is often the most convenient way.
Differential
also means a bevel gear that
permits rotation of two shafts at different speeds; used on the
rear axle of automobiles to allow wheels to rotate at different
speeds on curves.
Statistics - Interpretation of Quantitative Data
Statistics is the study of the
collection,
analysis,
interpretation, presentation, and
organization of
Data. In applying
statistics to, e.g., a scientific, industrial, or social problem, it is
conventional to begin with a statistical population or a statistical model
process to be studied. Populations can be diverse topics such as "all
people living in a country" or "every atom composing a crystal".
Statistics deals with all aspects of data including the planning of data
collection in terms of the design of
surveys and
experiments.
Factoring the possibilities, knowing the
odds.
Errors.
Mathematical Statistics is the application of mathematics to
statistics, which was originally conceived as the science of the state —
the collection and analysis of facts about a country: its economy, land,
military, population, and so forth. Mathematical techniques which are used
for this include mathematical analysis, linear algebra, stochastic
analysis, differential equations, and measure-theoretic probability
theory.
Computational Statistics is the interface between statistics and
computer science.
Statistical
Mechanics is a branch of
theoretical physics
using probability theory to study the average behaviour of a mechanical
system, where the state of the system is uncertain. A common use of
statistical mechanics is in explaining the
thermodynamic behavior of large
systems.
Statistical Significance is attained whenever the observed
p-value of a test statistic is less than the significance level defined
for the study.
Statistical
Model is a class of mathematical model, which embodies a set of
assumptions concerning the generation of some sample data, and similar
data from a larger population. A statistical model represents, often in
considerably idealized form, the data-generating process. The assumptions
embodied by a statistical model describe a set of
probability
distributions, some of which are assumed to adequately approximate the
distribution from which a particular
data set is sampled. The
probability distributions inherent in statistical models are what
distinguishes statistical models from other, non-statistical, mathematical
models. A statistical model is usually specified by mathematical equations
that relate one or more random
variables and possibly other non-random
variables. As such, a statistical model is "a formal representation of a
theory" (Herman Adèr quoting Kenneth Bollen). All statistical hypothesis
tests and all statistical estimators are derived from statistical models.
More generally, statistical models are part of the foundation of
statistical inference.
Sample in statistics or a data sample, is a set of data collected
and/or selected from a
statistical population by a defined procedure. The
elements of a sample are known as sample points, sampling units or
observations.
Cherry Picking Data.
Sampling in statistics is concerned with the selection of a subset of
individuals from within a statistical population to estimate
characteristics of the whole population. Two advantages of sampling are
that the cost is lower and data collection is faster than measuring the
entire population.
Survey.
Sample Size determination is the act of choosing the
number of observations or
replicates to include in a
statistical sample. The sample size is an important feature of any
empirical study in which the goal is to make inferences about a population
from a sample. In practice, the sample size used in a study is usually
determined based on the cost, time, or convenience of collecting the data,
and the need for it to offer sufficient statistical power. In complicated
studies there may be several different sample sizes: for example, in a
stratified survey there would be different sizes for each stratum. In a
census, data is sought for an entire population, hence the intended sample
size is equal to the population. In experimental design, where a study may
be divided into different treatment groups, there may be different sample
sizes for each group. Sample sizes may be chosen in several ways: using
experience – small samples, though sometimes unavoidable, can result in
wide confidence intervals and risk of errors in statistical hypothesis
testing. Using a target variance for an estimate to be derived from the
sample eventually obtained, i.e. if a high precision is required (narrow
confidence interval) this translates to a low target variance of the
estimator. Using a target for the power of a statistical test to be
applied once the sample is collected. Using a confidence level, i.e. the
larger the required confidence level, the larger the sample size (given a
constant precision requirement).
Overfitting is the production of an analysis that corresponds too
closely or exactly to a particular set of data, and may therefore fail to
fit additional data or predict future observations reliably. An overfitted
model is a statistical model that contains more parameters than can be
justified by the data. The essence of overfitting is to have unknowingly
extracted some of the residual variation (i.e. the noise) as if that
variation
represented underlying model structure. Underfitting occurs when a
statistical model cannot adequately capture the underlying structure of
the data. An underfitted model is a model where some parameters or terms
that would appear in a correctly specified model are missing. Underfitting
would occur, for example, when fitting a linear model to non-linear data.
Such a model will tend to have poor predictive performance.
Cherry Picking Data.
Per
Capita is for each person or in relation to people taken
individually. Phrase means "by heads" or "for each head" or per
individual/person. in place of saying "
Per Person".
Latin for "Per Head".
Per Capita Income measures the
average income
earned per person in a given area, city, region, country in a specified
year. It is calculated by dividing the area's total income by its total
population.
Stratified Sampling is a method of sampling from a
population. Stratification is the process of dividing members of the
population into homogeneous subgroups before sampling.
Bias.
Tool for nonstatisticians automatically generates models that glean
insights from complex datasets and automatically generates models for
analyzing raw data. The tool currently lives on
Jupyter Notebook, an
open-source web
framework that allows users to run programs interactively in their
browsers. Users need only write a few lines of code to uncover insights.
Survey Methodology studies the sampling of individual units
from a population and the associated
survey data collection techniques,
such as questionnaire construction and methods for improving the number
and accuracy of responses to surveys. Survey methodology includes
instruments or procedures that ask one or more questions that may, or may
not, be answered.
Standard Deviation is a measure that is used to quantify the
amount of variation or dispersion of a set of data values. A low standard
deviation indicates that the data points tend to be close to the mean
(also called the expected
value) of
the set, while a high standard deviation indicates that the data points
are spread out over a wider range of values.
Statistical Inference is the process of deducing properties of an
underlying distribution by analysis of data. Inferential statistical
analysis infers properties about a population: this includes testing
hypotheses and deriving estimates. The population is assumed to be larger
than the observed data set; in other words, the observed data is assumed
to be sampled from a larger population.
Statistical Interference is when two
probability
distributions overlap, statistical interference exists. Knowledge of
the distributions can be used to determine the likelihood that one
parameter exceeds another, and by how much.
Outlier
in statistics is a data point that differs significantly from other
observations. An outlier may be due to variability in the measurement or
it may indicate experimental error; the latter are sometimes excluded from
the data set. An outlier can cause serious problems in statistical
analyses.
Confidence
Interval is a type of interval estimate of a population parameter. It
is an observed interval (i.e., it is calculated from the observations), in
principle different from sample to sample, that potentially includes the
unobservable true parameter of interest. How frequently the observed
interval contains the true parameter if the experiment is repeated is
called the confidence level. In other words, if confidence intervals are
constructed in separate experiments on the same population following the
same process, the proportion of such intervals that contain the true value
of the parameter will match the given confidence level. Whereas two-sided
confidence limits form a confidence interval, and one-sided limits are
referred to as lower/upper confidence bounds (or limits).
5 Sigma is a measure of how confident scientists feel their
results are. If experiments show results to a 5 sigma confidence level,
that means if the results were due to chance and the experiment was
repeated 3.5 million times then it would be expected to see the strength
of conclusion in the result no more than once.
Meta-analysis is a statistical analysis that combines the
results of multiple scientific studies.
Geometric distribution (wiki)
Statistical Hypothesis Testing
is a hypothesis that is testable on the basis of observing a process that
is modeled via a set of random
variables.
Parametric Statistics is a branch of statistics which
assumes that sample data comes from a population that follows a
probability distribution based on a fixed set of parameters.
Statistics.
Statistical Process Control is a method of quality control
which uses statistical methods. SPC is applied in order to monitor and
control a process. Monitoring and controlling the process ensures that it
operates at its full potential. At its full potential, the process can
make as much conforming product as possible with a minimum (if not an
elimination) of waste (rework or scrap). SPC can be applied to any process
where the "conforming product" (product meeting specifications) output can
be measured. Key tools used in SPC include control charts; a focus on
continuous improvement; and the design of experiments. An example of a
process where SPC is applied is manufacturing lines.
Ordination Statistics
is a method complementary to data clustering, and used mainly in
exploratory data analysis (rather than in hypothesis testing). Ordination
orders objects that are characterized by values on multiple variables
(i.e., multivariate objects) so that similar objects are near each other
and dissimilar objects are farther from each other. These relationships
between the objects, on each of several axes (one for each variable), are
then characterized numerically and/or graphically.
Stats
Direct.
Geo-Statistics
is a branch of statistics focusing on spatial or spatiotemporal datasets.
Developed originally to predict probability distributions of ore grades
for mining operations, it is currently applied in diverse disciplines
including petroleum geology, hydrogeology, hydrology, meteorology,
oceanography, geochemistry, geometallurgy, geography, forestry,
environmental control, landscape ecology, soil science, and agriculture
(esp. in precision farming). Geostatistics is applied in varied branches
of geography, particularly those involving the spread of diseases
(epidemiology), the practice of commerce and military planning
(logistics), and the development of efficient spatial networks.
Geostatistical algorithms are incorporated in many places, including
geographic information systems (GIS) and the R statistical environment.
Linear Trend Estimation is a statistical technique to aid
interpretation of data. When a series of measurements of a process are
treated as a time series, trend estimation can be used to make and justify
statements about tendencies in the data, by relating the measurements to
the times at which they occurred. This model can then be used to describe
the behaviour of the observed data.
Google Trends -
Google Hot Trends Visualize
Patterns
-
Mind Maps -
Comparisons
Correlation
and Dependence is any statistical relationship, whether
causal or not, between two random variables or two sets of data.
Correlation is any of a broad class of statistical relationships involving
dependence, though in common usage it most often refers to the extent to
which two variables have a linear relationship with each other. Familiar
examples of dependent phenomena include the correlation between the
physical statures of parents and their offspring, and the correlation
between the demand for a product and its price.
Predicate in logic is any statistical relationship, whether causal or
not, between two random variables or two sets of data. Correlation is any
of a broad class of statistical relationships involving dependence, though
in common usage it most often refers to the extent to which two variables
have a linear relationship with each other. Familiar examples of dependent
phenomena include the correlation between the physical statures of parents
and their offspring, and the correlation between the demand for a product
and its price.
Extrapolation is the process of estimating, beyond the
original observation range, the value of a variable on the basis of its
relationship with another variable. It is similar to interpolation, which
produces estimates between known observations, but extrapolation is
subject to greater uncertainty and a higher risk of producing meaningless
results.
Linear.
Linear Equation is an algebraic equation in which each term
is either a constant or the product of a constant and (the first power of)
a single variable (however, different
Variables may occur in different
terms). A simple example of a linear equation with only one variable, x,
may be written in the form: ax + b = 0, where a and b are constants and a
≠ 0. The constants may be numbers, parameters, or even non-linear
functions of parameters, and the distinction between variables and
parameters may depend on the problem (for an example, see linear
regression).
Uniform Distribution is a symmetric probability distribution
whereby a finite number of values are equally likely to be observed; every
one of n values has equal probability 1/n. Another way of saying "discrete
uniform distribution" would be "a known, finite number of outcomes equally
likely to happen".
Sensitivity and Specificity are statistical measures of the
performance of a binary classification test, also known in statistics as
classification function.
Effect Size
(number needed to treat)
Second-Order Logic is an extension of first-order logic,
which itself is an extension of propositional logic. Second-order logic
is in turn extended by higher-order logic and type theory.
Procedural Generation is a method of creating data
algorithmically as opposed to manually. In computer graphics, it is also
called random generation and is commonly used to create textures and 3D
models. In video games it is used to automatically create large amounts of
content in a game. Advantages of procedural generation include smaller
file sizes, larger amounts of content, and randomness for less predictable
gameplay.
Mode in statistics is the value that appears most often in a set data.
The mode of a discrete probability distribution is the value x at which
its probability mass function takes its maximum value. In other words, it
is the value that is most likely to be sampled. The mode of a continuous
probability distribution is the value x at which its probability density
function has its maximum value, so the mode is at the peak.
Arthur Benjamin: Teach Statistics before Calculus (video)
Analytics is the discovery, interpretation, and
communication of meaningful
patterns
in data.
Fads
and Trends is any form of collective behavior that develops
within a culture, a generation or social group and which impulse is
followed enthusiastically by a group of people for a finite period of
time.
Formulating -
Validity
Peter Donnelly: How Stats Fool Juries (video)
Actuarial Science is the discipline that applies mathematical and
statistical methods to assess risk in insurance, finance and other
industries and professions.
Statistical Survey -
Scenarios
Mediocrity Principle is the philosophical notion that "if an
item is drawn at random from one of several sets or categories, it's
likelier to come from the most numerous category than from any one of the
less numerous categories".
Correspondence Mathematics is a term with several related
but distinct meanings.
Ratings.
Statistical
Syllogism is a non-deductive syllogism. It argues, using
inductive reasoning, from a generalization true for the most part to a
particular case.
Statistical Power of a binary hypothesis test is the
probability that the test correctly rejects the null hypothesis (H0) when
the alternative hypothesis (H1) is true. It can be equivalently thought of
as the probability of accepting the alternative hypothesis (H1) when it is
true—that is, the ability of a test to detect an effect, if the effect
actually exists.
Information Sources
Stats is the collection and interpretation of
quantitative data and the use of probability theory to estimate
parameters.
Empirical Statistical Laws or a law of statistics represents a type of
behavior that has been found across a number of datasets and, indeed,
across a range of types of data sets. Many of these
observances have been formulated and
proved as statistical or probabilistic theorems and the term "law" has
been carried over to these theorems. There are other statistical and
probabilistic theorems that also have "law" as a part of their names that
have not obviously derived from empirical observations. However, both
types of "law" may be considered instances of a scientific law in the
field of statistics. What distinguishes an empirical statistical law from
a formal statistical theorem is the way these patterns simply appear in
natural distributions, without a prior theoretical reasoning about the data.
Odds - Probability
Probabilities is a measure of
how likely it is that some event will occur; a
number expressing the ratio of favorable cases to the whole
number of cases possible. The quality of being probable; a
probable event or the most probable event.
Errors.
Probability is the
measure of the likelihood that an
event will occur. A number expressing the
ratio of
favorable cases to the whole number of cases possible. Probable is
something Having a high chance to be true or real.
Probabilistic is based on a theory of
probability and subject to or involving chance
variation.
Potential -
Cherry Picking Data
-
Risk -
Deterministic -
RandomnessPossibilities is the
capability of
existing or happening or being
true. A possible
alternative.
Probabilistic Logic is to combine the capacity of
probability theory to handle
uncertainty
with the capacity of
deductive logic
to exploit structure of
formal argument.
The result is a richer and more expressive formalism with a broad range of
possible application areas. Probabilistic logics attempt to find a natural
extension of traditional logic truth tables: the results they define are
derived through probabilistic expressions instead. A difficulty with
probabilistic logics is that they tend to multiply the computational
complexities of their probabilistic and logical components. Other
difficulties include the possibility of counter-intuitive results, such as
those of Dempster-Shafer theory in evidence-based subjective logic. The
need to deal with a broad variety of contexts and issues has led to many
different proposals.
Odds is calculating the likelihood that the event will
happen or not happen, using a numerical expression usually
expressed as a
pair of numbers. A
prediction. A guess.
Chance is a possibility due to a favorable
combination of
circumstances.
An unknown and
unpredictable phenomenon that causes an event to result one way rather
than another.
Relative -
Hypothesis -
Ratio -
Intuition.
May expresses a possibility that something
might happen.
Guess
is a message expressing an
opinion based on
incomplete evidence. An
estimate based on
little or no information.
Educated Guess is a guess based on
knowledge,
reasoning and
experience and factors that you take into account which might affect the
outcome. A well-informed guess or estimate based on experience or
theoretical knowledge.
BEST Guess Who Strategy- 96% WIN record using MATH (youtube)
Opportunity is a
possibility due to a
favorable combination
of circumstances. A chance or the
possibility of future success. A measure
of how likely it is that some event will occur or a number expressing the
ratio of favorable cases to the whole number of cases possible.
Scientists discover what happens in our brains when we make educated
guesses. Researchers have identified how cells in our brains work
together to join up memories of separate experiences, allowing us to make
educated guesses in everyday life. By studying both human and mouse brain
activity, they report that this process happens in a region of the brain
called the
hippocampus.
Uncertainty
is something dependent on chance. To be in
doubt or being unsure of
something. Lacking
confidence.
Uncertainty refers to epistemic situations involving imperfect or
unknown information. It applies to
predictions of future events,
to physical measurements that are already made, or to the unknown.
Uncertainty arises in partially observable and/or
stochastic environments,
as well as due to
ignorance,
indolence, or both. It arises in any number of fields, including
insurance, philosophy, physics, statistics, economics, finance,
psychology, sociology, engineering, metrology, meteorology, ecology and
information science.
Certain is something definitely
known and
destined to happen or inevitable to
happen. Feeling no doubt or uncertainty and being
confident and
assured. To
established something beyond doubt or
question. Something definite but not specified or identified or
established irrevocably.
Reliable
in operation or effect. Exercising or
taking care great enough to bring assurance.
"Once you lower your
expectations,
the sky's the limit."
Given is when
you
believe something as being true or
when you believe something to be a sure thing that you don't need to
prove.
Estimate is an approximate calculation of quantity or degree. Judge
tentatively or form an estimate of quantities or
time.
Estimation is the process of finding an approximation, a
value that is usable for some purpose even if input data may be
incomplete, uncertain, or unstable.
Calculate.
Estimation Statistics is a data analysis framework that uses
a combination of effect sizes, confidence intervals, precision planning
and meta-analysis to plan experiments, analyze data and interpret results.
Reliability in statistics is the
consistency that produces similar results
under
consistent conditions.
Value Bet is a bet where the
probability of a given outcome is greater than the bookmakers odds
reflect. Simply put, when value betting you will be placing bets that have
a larger chance of winning than implied by the bookmakers odds. This means
you will have an edge over the bookmaker in the long run.
Approximation is anything that is
similar but not exactly equal to
something else.
Extrapolation.
Approximation Error
in when some data is the discrepancy between an exact value and some
approximation to it. An approximation error can occur because the
measurement of the data is not precise due to the
instruments. (e.g., the accurate reading of a piece of paper is 4.5 cm
but since the ruler does not use decimals, you round it to 5 cm.) or
approximations are used instead of the real data (e.g., 3.14 instead of
π).
Order of Approximation
refers to formal or informal terms for how precise an approximation is,
and to indicate progressively more refined approximations: in increasing
order of precision, a zeroth-order approximation, a first-order
approximation, a second-order approximation, and so forth. Informally, it
is simply the level of precision used to represent quantities which are
not perfectly known.
Approximate Number System an adult could distinguish 100 items versus
115 items without counting.
Inconceivable
is something unlikely to happen or is unimaginable, but not totally
impossible.
Conceivable is something
capable of being imagined.
Conceive is to
have an idea.
Impossible is
something
not capable of happening or occurring or being accomplished or
dealt with. Something that cannot be done or totally unlikely.
Limit is the greatest possible
degree of something. The greatest amount of
something that is possible or allowed. A final or latest
limiting point. As far as
something can go. Restrict in quantity or scope. The boundary of a
specific area. The mathematical value toward which a function goes as the
independent variable approaches
infinity.
Fold
Change is a
measure describing how much a quantity changes between an
original and a subsequent measurement. It is defined as the ratio between
the two quantities; for quantities A and B, then the fold change of B with
respect to A is B/A. Fold change is often used when
analyzing multiple
measurements of a biological system taken at different times as the change
described by the ratio between the time points is easier to interpret than
the difference.
Variables
is an alphabetic character representing a number, called the value of the
variable, which is either arbitrary or not fully specified or unknown.
Iterations.
Probability Distribution is a mathematical description of a
random phenomenon in
terms of the probabilities of events.
Propensity Probability is the tendency of a given type of physical situation to yield an outcome of a
certain kind, or to yield a long run relative frequency of such an
outcome. (physical propensity, disposition or to
behave in a certain way).
Probability Density Function is a function, whose value at any given
sample (or point) in the sample space (the set of possible values taken by
the random variable) can be interpreted as providing a relative likelihood
that the value of the random
variable
would equal that sample.
Bean Machine or
Galton Board is a device that demonstrates
the
central limit theorem in particular that with sufficient sample size
the binomial distribution approximates a
normal distribution. Among its applications, it afforded insight into
regression to the mean or "regression to mediocrity".
Independence probability theory is when the occurrence of one does not
affect the probability of occurrence of the other (equivalently, does not
affect the odds). Similarly, two random variables are independent if the
realization of one does not affect the probability distribution of the
other.
Probability distribution is a mathematical function that provides the
probabilities of occurrence of different possible outcomes in an
experiment.
Bayesian Probability represents a level of certainty relating to a
potential outcome
or idea. This is in contrast to a frequentist probability that represents
the
frequency with which a
particular outcome will occur over any number of trials. An event with
Bayesian probability of .6 (or 60%) should be
interpreted as stating "With
confidence 60%, this event
contains the true outcome", whereas a frequentist interpretation would
view it as stating "Over
100 trials,
we should observe event X approximately 60 times." The difference is more
apparent when discussing ideas. A frequentist will not assign probability
to an idea; either it is
true
or
false and it cannot be true
6 times out of 10.
Bayesian is
relating to statistical methods based on Bayes' theorem.
Bayes' Theorem describes the
probability of an event,
based on prior
knowledge of conditions that
might be related to the event.
Decisions.
Bayesian Inference is a method of
statistical
inference in which Bayes' theorem is used to update the probability for a
hypothesis as more evidence or information becomes available.
Statistical
Inference is the process of
deducing properties of an underlying probability distribution by
analysis of data. Inferential statistical analysis infers properties about
a population: this includes testing hypotheses and deriving estimates. The
population is assumed to be larger than the observed data set; in other
words, the observed data is assumed to be sampled from a
larger population. Inferential
statistics can be contrasted with descriptive
statistics. Descriptive statistics is solely concerned with properties
of the observed data, and does not assume that the data came from a larger
population.
If Function
Algorithms -
Ratings -
Truth
Bellman Equation
is a necessary condition for optimality associated with the mathematical
optimization method known as dynamic programming. It writes the
value of a decision problem at a
certain point in time in terms of the payoff from some initial choices and
the value of the remaining decision problem that results from those
initial choices. This breaks a dynamic optimization problem into simpler
subproblems, as Bellman's "Principle of Optimality" prescribes.
Averages - Ratio
Average
is around the middle of a scale. The sum of a list of numbers divided by the number of numbers in the
list. In mathematics and statistics, this would be called the arithmetic
mean. In
statistics, mean, median, and mode are all known as measures of
central tendency.
Balanced -
Moderation.
Mean is the sum of a collection of numbers divided by the number of
numbers in the collection. The collection is often a set of results of an
experiment, or a set of results from a survey.
Regression toward the Mean is the phenomenon that arises if a
random
variable
is extreme on its first measurement but closer to the mean or average on
its second measurement and if it is extreme on its second measurement but
closer to the average on its first. To avoid making incorrect inferences,
regression toward the mean must be considered when designing scientific
experiments and interpreting data. Historically, what is now called
regression toward the mean has also been called reversion to the mean and
reversion to mediocrity.
Cherry Picking
Data.
Middle is an area that is approximately
central within some larger region. Being neither at the beginning nor at
the end in a series. Equally distant from the extremes. Time between the
beginning and the end of a temporal period.
Percentage is a number or ratio
expressed as a
fraction of 100. It is often denoted using the percent sign, "
%", or the
abbreviations "pct.", "pct"; sometimes the abbreviation "pc" is also used.
A percentage is a dimensionless number (pure number).
Ratio is a relationship
between two numbers indicating how many times the first number contains
the second. The relative magnitudes of two quantities usually expressed as
a quotient or the ratio of two quantities to be
divided.
For example, if a bowl of fruit contains eight oranges and six lemons,
then the ratio of oranges to lemons is eight to six (that is, 8:6, which
is equivalent to the ratio 4:3). Similarly, the ratio of lemons to oranges
is 6:8 (or 3:4) and the ratio of oranges to the total amount of fruit is
8:14 (or 4:7). The numbers in a ratio may be quantities of any kind, such
as counts of persons or objects, or such as measurements of lengths,
weights, time, etc.
Scale -
Circles.
Quotient
is the ratio of two quantities to be
divided. The
quantity produced by the division of two numbers.
IQ.
Aspect Ratio of an image describes the proportional relationship
between its width and its height. It is commonly expressed as two numbers
separated by a colon, as in
16:9.
For an x:y aspect ratio, no matter how big or small the image is, if the
width is divided into x units of equal length and the height is measured
using this same length unit, the height will be measured to be y units.
Risk Ratio is the ratio of the
probability of an
outcome in an exposed group to the probability of an outcome in an
unexposed group.
Risk.
Parameter is any characteristic that can help in defining or
classifying a particular system (meaning an event, project, object,
situation, etc.). That is, a parameter is an element of a system that is
useful, or critical, when identifying the system, or when evaluating its
performance, status, condition, etc. Parameter has more specific meanings
within various disciplines, including mathematics, computing and computer
programming, engineering, statistics, logic and linguistics. Within and
across these fields, careful distinction must be maintained of the
different usages of the term parameter and of other terms often associated
with it, such as argument, property, axiom, variable, function, attribute,
etc.
Luck -
Comparisons
Parallel Individuation System is a non-symbolic cognitive system that
supports the representation of numerical values from zero to three (in
infants) or four (in adults and non-human animals). It is one of the two
cognitive systems responsible for the
representation of number, the
other one being the approximate number system. Unlike the approximate
number system, which is not precise and provides only an estimation of the
number, the parallel individuation system is an exact system and encodes
the exact numerical identity of the individual items. The parallel
individuation system has been attested in human adults, non-human animals,
such as fish and human infants, although performance of infants is
dependent on their age and task
Intraparietal Sulcus is processing symbolic numerical information,
visuospatial working
memory and interpreting the intent of others.
Operationally Impossible is considered to be 1 in 10 to the 70th
Power
Power of 10 is any of the integer powers of the number ten;
in other words, ten multiplied by itself a certain number of times (when
the power is a positive integer). By definition, the number one is a power
(the zeroth power) of ten.
Size
Margin of Error
is a statistic expressing the amount of random sampling error in a
survey's results. It asserts a likelihood (not a certainty) that the
result from a sample is close to the number one would get if the whole
population had been queried. The likelihood of a result being "within the
margin of error" is itself a probability, commonly 95%, though other
values are sometimes used. The larger the margin of error, the less
confidence one should have that the poll's reported results are close to
the true figures; that is, the figures for the whole population. Margin of
error applies whenever a population is incompletely sampled.
Accuracy
and Precision. Precision is a description of random
errors, a measure of
statistical variability. Accuracy has two definitions: More commonly, it
is a description of systematic errors, a measure of statistical
bias; as these cause a difference
between a result and a "
true"
value, ISO calls this trueness. Alternatively, ISO defines accuracy as
describing a combination of both types of observational error above
(random and systematic), so high accuracy requires both high precision and
high trueness. In simplest terms, given a set of data points from a series
of
measurements, the set can be said to be precise
if the values are close to the average value of the quantity being
measured, while the set can be said to be accurate if the values are close
to the true value of the quantity being measured. The two concepts are
independent of each other, so a particular set of data can be said to be
either accurate, or precise, or both, or neither.
Precision in statistics is when the precision is the
reciprocal of
the variance, and the precision
matrix, also known as concentration matrix, is the matrix inverse of
the
covariance matrix. Some
particular statistical models define the term precision differently.
Markov Chain is a process satisfies the Markov property if one can
make predictions for the future of the process based solely on its present
state just as well as one could knowing the process's full history. i.e.,
conditional on the present state of the system, its future and past are
independent.
Markov Property refers to the memoryless property of a stochastic
process.
Memorylessness is a property of certain probability distributions: the
exponential distributions of non-negative real numbers and the geometric
distributions of non-negative integers.
Stochastic Process is a probability model used to describe phenomena
that evolve over time or space. More specifically, in probability theory,
a stochastic process is a time sequence representing the evolution of some
system represented by a variable whose change is subject to a random
variation.
Time Management -
Virtual Reality
Relative Change and Difference are used to compare two
quantities while taking into account the "sizes" of the things being
compared. The comparison is expressed as a ratio and is a unitless number.
By multiplying these ratios by 100 they can be expressed as percentages so
the terms percentage change, percent(age) difference, or relative
percentage difference are also commonly used. The distinction between
"change" and "difference" depends on whether or not one of the quantities
being compared is considered a standard or reference or starting value.
When this occurs, the term relative change (with respect to the reference
value) is used and otherwise the term relative difference is preferred.
Relative difference is often used as a quantitative indicator of quality
assurance and quality control for repeated measurements where the outcomes
are expected to be the same. A special case of percent change (relative
change expressed as a percentage) called percent error occurs in measuring
situations where the reference value is the accepted or actual value
(perhaps theoretically determined) and the value being compared to it is
experimentally determined (by measurement).
Observation Errors
-
Error's
Piwik Analytics Software
Web Analytics Software List (wiki)
Saplumira
Research (science) -
Mind Maps
Analytics
is the discovery, interpretation, and communication of meaningful patterns
in data. Especially valuable in areas rich with recorded information,
analytics relies on the simultaneous application of statistics, computer
programming and operations research to quantify performance.
Google Analytics -
Watson Analytics.
Teaching Math - Learning By Example
Learning Not Just on Paper. If you are
teaching math then you
should use
real life examples that relate and are
relative to the
students
immediate needs. You should also use
calculations that students
will need to preform in order to
solve a problem that they will most likely face
in the
immediate future or far
future.
The main reason why you use
real life situations or
scenarios when learning math
is the
associations. When you
associate knowledge with other
knowledge that is used often,
you remember it more often, so
the knowledge stays with you longer. That is why you can easily remember things when you
associate them with other things, which is
one of the key
techniques in having a good memory.
When you have nothing to associate something with, you forget it, to a point where you will not
even remember why you even learned this knowledge in the first place. This is what education is today,
fragmented
and incoherent. Kids have to learn how to use math in their everyday life,
if they don't, they will eventually forget it and never use it
effectively or
efficiently.
Example Choice is when students see a
connection between
physics and the real world. They learn easier because the subject is more
interesting and more
relevant to their daily life.
Children Learning by Example.
Analogy -
Precedent -
Proof of Concept -
Outdoors -
Experience Learning -
Read to
Learn Example is a
representative form or
pattern. Something to be
imitated. A task
performed or
problem solved in order to develop skill or understanding.
Clarify something by showing
something
similar or
equivalent.
Exemplary is something serving as a desirable
model and representing the best of its kind. Exemplary also means punishment serving as a warning
or deterrent.
Instance is to clarify
something by giving an example of it. An item of information that is
typical of a class or group. An occurrence of something.
Demonstration Teaching involves showing by
reason or
proof, explaining or
making clear by use of examples or
experiments. Making something
less vague and
abstract.
Demonstration is a
show or display and the act of
presenting something to sight or view.
Proof by a process of argument or a
series of proposition proving an asserted conclusion.
Repeatable (reproducibility).
Ostensive
Definition conveys the
meaning of a
term by
pointing out examples. This type of definition is often used where
the term is difficult to define verbally, either because the words will
not be understood (as with children and new speakers of a language) or
because of the nature of the term (such as colors or sensations). It is
usually accompanied with a gesture pointing to the object serving as an
example, and for this reason is also often referred to as "definition by
pointing".
Action Learning is an approach to
solving
real problems that involves
taking action and reflecting upon the results,
which helps improve the problem-solving process, as well as the solutions
developed by the team. The action learning process includes: a real
problem that is important, critical, and usually complex, a diverse
problem-solving team or "set", a process that promotes curiosity, inquiry,
and reflection, a requirement that talk be
converted into action and,
ultimately, a solution, and a commitment to
learning.
Learning by Doing is when productivity is
achieved through
practice, self-perfection and minor innovations. An
example is a factory that increases output by learning how to use
equipment better without adding workers or investing significant amounts
of capital. Learning refers to understanding through thinking ahead and
solving backward, one of the main problem solving strategies.
PDF -
Math for America Classroom Lessons.
Authentic Learning is an
instructional approach
that allows students to explore, discuss, and meaningfully construct
concepts and relationships in contexts that involve
real-world problems
and projects that are
relevant to the learner. It refers to a wide
variety of educational and instructional techniques focused on connecting
what students are taught in school to real-world issues, problems, and
applications. The basic idea is that students are more likely to be
interested in what they are learning, more
motivated to learn new concepts
and skills, and better
prepared to succeed in college, careers, and
adulthood if what they are learning mirrors real-life contexts, equips
them with practical and
useful skills, and addresses topics that are
relevant and applicable to their lives outside of school.
DIY Learning.
Public
Sphere Pedagogy represents an approach to educational engagement that
connects classroom activities with
real world civic engagement. The focus
of PSP programs is to connect class assignments, content, and readings
with contemporary public issues. Students are then asked to participate
with members of the community in various forms of public sphere discourse
and democratic participation such as
town hall meetings and
public
debate events. Through these events, students are challenged to
practice civic engagement and civil discourse.
Knowing how to count doesn't matter if you don't
count the things that matter.
Count the things that Matter.
Real life preparation
has to be the goal and the
purpose in all educational courses.
Don't force
students to figure something out if they can't use that knowledge in real
life. Because they will just forget it, which is why
school testing is a failure and a
disservice. It's been well documented that students forget almost
everything they saw on a test, so what's the point? If you want to use a
math formula or use a problem solving technique using numbers, then give a
clear example of how those numbers can be used to symbolize real things in
their life, things that they should know because they are part of a
valuable skill set.
Relate -
Learning Methods.
If someone is going to show you how
to use a hammer, then they should also show you how to build a house using
a hammer. Learning how to use a hammer is not interesting or fun, but when
you learn what a hammer can do, then it becomes an
incredible tool. Like
math, learning how to do math is boring, but once you learn what math can
do, then you can use math to build your own house, or maybe even
use math to build a spacecraft
and fly to the moon. When learning does not have that bigger goal in mind,
then learning becomes pointless and boring, and then people don't learn
enough or keep progressing.
Where ever students are, use that
students needs in the present moment as a
teaching format. What ever a
person is struggling with, use that particular struggle to teach them how
to over come their struggle using reading, writing, math, science,
biology, or any other useful subject or skill. This way you increase their
understanding of important subjects and also help solve their problems
that they are experiencing now, or may experience in the future. Help them
with life, and help prepare them for the future. As you are walking
towards a goal, teach them along the way, and most important, show them
the power of learning, and make every student understand that they
need to be able to learn on their own,
because that is the most important skill that they will ever have in life.
And if they never learn to learn, or never learn how important it is to be
able to learn on their own, then they will struggle with life, and they
will most likely never acquire true success or true happiness.
A lesson should have a beginning, a middle and an end. It should
explain the
procedure used, if one was used. It should explain
why particular problem solving skills where used? It should
explain the things to be aware of and why? It should explain the
learning path that was chosen and that it was not a blind
mindless reaction. As history has taught us, just because
something was done in a particular way for a long period of
time, it does not mean that it can't be improved.
Video Samples: This
video is one example, but it needs to be even more reality based.
Math Shorts Episode
15 - Applying the Pythagorean Theorem (youtube).
Real World Math Examples This video did not go far enough to teach all
the variables. And you could have showed more examples of how to estimate
the
altitude, like holding the
drone over a yard stick, if the drone can see the entire yardstick at
2 feet off the ground, then you could estimate the altitude needed in
order to see 100 yards if the drone was in the middle straight up from the
50 yard line. In the video they said the altitude needed was 89.7 feet to
have a full view of a 100 yard long area. So the lens of the camera definitely influences
field of view like with a wide angle camera lens. It would been even more accurate if you added an
Ariel photographers expertise to explain important factors of Ariel photography, and also teach safe
Drone Operation.
Education improves decision-making ability and economic rationality, study
finds. Using a randomized controlled trial of education support and
laboratory experiments that
mimic real-life
examples, we established causal evidence that an education
intervention increases not only educational outcomes but also economic
rationality in terms of measuring how consistently people make decisions to seek their economic goals.
Knowing the math behind a problem,
or knowing the math behind a solution or goal, helps to clarify
its true significance and also helps explain what decisions and
choices are available. This is when math reveals its true power.
But even knowing that there’s a mathematical equation in almost
everything in our lives, math does not explain everything.
Especially when knowing that some people can’t do the math, or
worse,
some people leave out very important factors, that when
calculated, clearly paints a different picture to what the real
facts are. Math is not the only factor when solving a problem,
or the only factor that clarifies true meaning. There are also
other factors that could help solve a problem, or reach an
understanding.
Some
people can understand math a lot sooner than other people can. Some people
can understand math at the age of 12 and some people at the age of 20. The
only difference is the options that a person will have at that particular
time in their life. Once you reach a certain level of knowledge, you have
more possibilities to choose from and more options concerning a particular
educational direction, like being a doctor, a lawyer, a farmer, a leader,
or a representative of the people. The 20 year old will still have the
same potential, but only at a later time, but only if they keep learning.
Count the things that Matter
Is what you're doing making a difference? Are you fully
conscious of all the
causes and
effects that you have on the world?
Are you aware of the
damage that you are afflicting on yourself
or on anyone else? Do you know what
choices you have? Do you have
enough
math knowledge in order to
correctly calculate your
causes and effects? Can you translate these numbers into a
language that even a laymen could understand? In order to fully
understand
yourself and the world around you, you need
Knowledge, information and the tools that help explain it. If
things need to be calculated, then you must calculate them. Math
is a universal language. Math explains why some words are
undeniably true.
A truth that can be proven and witnessed. If
you can confirm something to be true, and it has relevancy, then
it is most likely very important. And ignoring this importance
is dangerous, the consequences can be catastrophic. Math is a
good guide that you can trust and a really good friend that you
can count on, literally. And this is fully knowing that even
though some things can be counted does not necessary mean that
they actually count. In other words, you have to know how to
count if you want to count the things that count. The
importance of math is constantly revealing itself. In order to
educate people about this
importance you must show people
real
life examples of how powerful math knowledge truly is.
Teaching math, or learning math, is one thing, knowing how to use math
correctly and effectively in real life situations is another. That has to
be the ultimate goal of math, otherwise you are just wasting time, people
and resources. People need to
stop
cherry picking data and
stop
pretending to know things. Stop counting the money and start counting
the things that happened because of the money.
Calculate the value of your actions
and
calculate the full cost of your actions.
Stop counting the things that don't matter, and
stop being vague about the things
you think matter.
"If you don't count the things that matter, then knowing how to count won't matter."
Reading Too.
It counts to count. Count is
to determine the number or the amount of something. But Count also
means something that has truth, or validity or
Value. Like providing a
service that counts, or doing something important that counts as a benefit
to you and for others.
Loss
Aversion.
We need to learn how to
count more accurately. Numbers should have specific values assigned
to them, so that they are not just numbers, they are detailed records of a
transaction of
what was taken from the Earth and what we gave back to
earth in return in order to sustain life.
We need to
calculate all the factors
that are needed for life on earth. A side by side comparison,
the pros and cons, the pluses and minuses, the choices, and so on. Knowing the difference between
Value and Cost and
Hidden
Costs.
Productivity
is measured by work rate, output and yield, and also how much resources
were used, what pollution it caused, the effects of that pollution, how
much the pollution cost peoples health and the environment. And if the
time, people, resources and energy could have been better used more
effectively and
efficiently that would have been more
productive.
Capstone Project # 1 (problem solving)
How much does food really cost?
(time, people, resources, environmental impacts, options,
solutions,
Et cetera...)
How much does clean water really
cost? (time, people, resources, environmental impacts, options,
solutions,
Et cetera..)
Why does tap water cost 10,000 times less than bottle water?
How much does good health really
cost? (time, people, resources, environmental impacts, options,
solutions,
Et cetera)
How much do clothes really cost?
(time, people, resources, environmental impacts, options,
solutions,
Et cetera)
How much does a home really cost?
(time, people, resources, environmental impacts, options,
solutions,
Et cetera)
How much does energy really cost? (time, people, resources,
environmental impacts, options, solutions,
Et cetera)
How much does a particular cell phone really cost? (time,
people, resources, environmental impacts, options, solutions)
How much does a particular computer really cost? (time, people,
resources, environmental impacts, options, solutions)
How much does a good education really
cost? (time, people, resources, environmental impacts, options,
solutions)
How much does ignorance cost? (time,
people, resources, environmental impacts, options, solutions) -
Greendex -
Ratings.
How much would one of these things
cost you if you didn't have it? (lost time, poor health,
impacts,
Et cetera...)
Sustainable Calculator
Mathematical Optimization
is the selection of a best element (with regard to some criterion) from
some set of available alternatives.
Mathematical Proof demonstrates that a statement is always true
(listing possible cases and showing that it holds in each).
Axiom well-established,
that it is accepted without controversy or question.
Valid.
"You can’t manage what you don’t
measure accurately"
Optimum is the most favorable conditions or greatest degree or amount possible
under given circumstances.
Let students see this information and
let them challenge these calculations so they can confirm this
knowledge for themselves, and also be able to repeat these
processes on other subjects of great importance and on other
problems that need to be solved.
Measuring Value -
..."If
you don't measure the things that count, then knowing how to
measure will not benefit you."
Eventually we'll have a human action
calculator on your computer, or an app on your smart phone, that
when you put in your action, and your numbers, it calculates
time, people, resources, impacts, skills, tools, assistance, and
any other parameters that may apply to the current condition,
then displays this information so that it can be quickly
understood. This way people can easily see the reality of a
particular action along with the positive and negative effects
of this action. People can then make better decisions and plan
more effectively, and also see what other choices and options
there may be.
Rating System.
Critical Thinking and Technology
-
Cause and Effect
-
Problem Solving
Investigative Dashboard -
Alaveteli
Hidden Costs (youtube) -
Opportunity Cost
Zipf's Law is an empirical law formulated using mathematical
statistics that refers to the fact that many types of data studied in the
physical and social sciences can be approximated with a Zipfian
distribution, one of a family of related discrete power law probability
distributions.
Management
Tools.
Note: Students must still learn to Verify and Confirm
these Calculations manually, and also, fully understand the
process.
This way we can minimize errors, while at the same time, not be
vulnerable or totally dependent on our
electronic technology tools.
Of course anyone can
do the above capstone project. I'm sure someday there will soon
be an
App for this, of course!
Food for Thought App tallies the nutritional data and carbon
footprint associated with each food item and with the overall
meal, such as the amount of calories in a salad and the amount
of water that would be used in growing the lettuce.
Apps.
Pattie
Maes demos the Sixth Sense (youtube)
Rating System -
Responsibly Produced Rating
"Criminals know how to use a calculator better than the general
public does. That's one of the reasons why education fails to
prepare students effectively. If you educate students to be
smarter than criminals, then you will have no more criminals."
I wouldn't say that "The unexamined life is not worth living." I
would say that "An examined life definitely makes life worth
living."
"If you teach students how math is used in the real world, and
how math has many benefits, when they graduate, they will know
what math is used for, and they also know what it's not used
for."
When you're learning math,
everyone starts out not understanding math. But with time and
practice, you will eventually understand math. If it takes you
longer to learn than other people, that's ok, because you will
eventually learn math. And you will see the benefits that come
from math. But you need to see how math is used in your every
day life. So as you're learning math, you are also learning
about the world, and learning about yourself. If you can't
connect the world with math, then math will seem unimportant to
you, so the motivation to learn math will be very low. If you're
learning to count, then count the things that matter to you.
Then you will eventually see the potential of using math. The
most important factor is what the numbers represent. If the
numbers represent something arbitrary, then they lose their
meaning and their effectiveness.
Teleology -
Cause and Effect
-
Structure
Stop
Teaching Calculating, Start Learning Maths! - Conrad Wolfram
(youtube)
Factor is anything that contributes causally to a result. Consider as
relevant when making a decision. An abstract part of something.
Any of the
numbers (or symbols) that form a product when
multiplied together.
Odds.
Count is to show consideration for; take into account. Allow or plan for a
certain possibility; concede the truth or validity of something.
Have a certain value or carry a certain weight. Determine the
number or amount of. Include as if by counting. Have faith or
confidence in.
Consideration is the process of giving careful thought to something. Information
that should be kept in mind when making a decision. Kind and
considerate regard for others. A considerate and thoughtful act.
Instruction
is a message describing
how something is to be done.
Mathematical Statement
Statement
is a message that is stated or declared; a communication (oral or
written) setting forth particulars or facts etc. A fact or
assertion offered as evidence that something is true.
Some of the things that Math can Do
Calculations or Computations is
problem solving that involves numbers or
quantities. Planning
something carefully and intentionally. The procedure of
calculating; determining something by mathematical or logical
methods.
Calculations -
Time
Management.
Procedure is a particular course of action intended to achieve a result. A
process or series of acts especially of a practical or
mechanical nature involved in a particular form of work. A set
sequence of steps, part of larger computer program.
Procedure (science).
Process is to perform mathematical and logical operations on (data) according
to programmed instructions in order to obtain the required
information. A particular course of action intended to achieve a
result. Shape, form, or improve a material. Subject to a process
or treatment, with the aim of readying for some purpose,
improving, or remedying a condition.
Process (science).
Operations is a process or series of acts especially of a practical or
mechanical nature involved in a particular form of work.
Operation in psychology is the performance of some composite cognitive
activity; an operation that affects mental contents.
Operation in mathematics is
calculation by mathematical methods.
Operation
is a calculation from zero or more input values (called operands) to an
output value.
Function is a mathematical relation such that each element of
a given set (the domain of the
function) is associated with an
element of another set (the range of the function). The actions
and activities assigned to or required or expected of a person
or group. A relation such that one thing is dependent on
another. What something is used for. Perform as expected when
applied.
Function in mathematics.
Measure is the assignment of a
number or
values to a
characteristic of an object or event, which can be
compared with other
objects or events. To determine the
measurements of something or somebody, take
measurements of. Express as a
number or measure or quantity.
Have certain dimensions. Evaluate or estimate the nature,
quality, ability, extent, or significance of. Any maneuver made
as part of progress toward a goal. How much there is or how many
there are of something that you can
quantify. The act or process
of assigning numbers to phenomena according to a rule. A basis
for
comparison; a reference point against which other things can
be
evaluated. Measuring instrument having a sequence of marks at
regular intervals; used as a reference in making measurements.
A container of some standard capacity that is used to obtain
fixed amounts of a substance.
Measuring
Instrument is a
device for measuring a physical quantity. In the
physical sciences,
quality assurance, and engineering, measurement is the
activity of obtaining and comparing physical quantities of real-world
objects and events.
Established standard objects and events are used as
units, and the process of measurement gives a number relating the item
under study and the referenced unit of measurement.
Measuring instruments,
and formal test methods which define the instrument's use, are the means
by which these relations of numbers are obtained. All measuring
instruments are subject to varying degrees of
instrument error and
measurement uncertainty.
Measuring Tools.
System of
Measurement is a collection of units of measurement and rules relating
them to each other. Systems of measurement have historically been
important, regulated and defined for the purposes of science and commerce.
Systems of measurement in modern use include the
metric system, the
imperial system, and United States
customary units, which uses the
inch,
foot,
yard, and
mile, which are the only four customary length
measurements in everyday use.
94.7 % of the world
uses the metric system. Most countries use the Metric System, which
uses the measuring units such as meters and grams and adds prefixes like
kilo, milli and centi to count orders of magnitude. Scientists often use
meters for length, kilograms for mass, and seconds for time.
Metric System by Country (image)
Metrology is the
science of measurement. It
establishes a common understanding of units, crucial in linking human
activities.
Units of Measurement is a definite magnitude of a quantity,
defined and adopted by convention or by law, that is used as a
standard
for measurement of the same quantity. Any other value of that quantity can
be expressed as a simple multiple of the unit of measurement.
History of
Measurement (wiki).
Calibration -
Standards -
StatisticsCGS is a
system of measurement based on centimeters and grams and seconds.
Level of Measurement is a classification that describes the
nature of information within the numbers assigned to
variables.
Classification with four levels, or scales, of measurement: nominal,
ordinal, interval, and
ratio.
Isotropic is having a physical property
which has the same value when measured in different directions. (of a
property or phenomenon) not varying in magnitude according to the
direction of measurement.
Isotropy
is uniformity in all orientations.
Ruler is an
instrument used in
geometry, technical
drawing, printing,
engineering and building to measure distances or to
rule straight lines. The ruler is a straightedge which may also contain
calibrated lines to measure distance.
Tools for Measuring (engineering)
Slide Rule is a mechanical analog computer. The slide rule
is used primarily for multiplication and division, and also for functions
such as exponents, roots, logarithms and trigonometry, but is not normally
used for addition or subtraction. Though similar in name and appearance to
a standard ruler, the slide rule is not ordinarily used for measuring
length or drawing straight lines.
How to Use
a Slide Rule: Multiplication/Division, Squaring/Square Roots
(youtube).
Analog
Computer is a form of
computer that uses the
continuously changeable aspects of physical phenomena such as electrical,
mechanical, or hydraulic quantities to model the problem being solved.
Logarithm is the
inverse operation (a function that "reverses" another function) to
exponentiation. That means the logarithm of a number is the exponent
to which another fixed number, the base, must be raised to produce that
number.
Pros and Cons -
Side by Side Comparisons -
Value
Our ability to measure is extremely powerful. Measuring gives us the
ability to
predict the future. So that means we can literally
control our own destiny. We can even measure ourselves, to
measure the measurer.
Learn
to measure, measure as much as you can, and measure the
things that are the most important. If you can't measure
something yourself, then find someone who can measure it for
you. Measuring encompasses many different skills, but the skills
to
accurately
decipher your measurements will always be the most
important. Why, when, where, who, how,
value, priority?"
Quantify is to express as a number or
measure or quantity.
Calculate.
Quantification in science is the act of
counting and
measuring that maps human sense observations and experiences into
quantities. Quantification in this sense is fundamental to the scientific
method.
Quantifier in linguistics is a type of determiner, such
as all, some, many, few, a lot, and no, (but not numerals) that indicates
quantity.
Quantifier in logic is a construct that specifies the
quantity of specimens in the domain of discourse that satisfy an open
formula.
Quantities is how much there is or
how many there are of something that you
can quantify. The concept that something has a magnitude and can
be represented in mathematical expressions by a constant or a
variable.
Quantity is a property that can exist as a
magnitude or
multitude. Quantities can be compared in terms of "
more", "
less", or
"
equal", or by assigning a numerical value in terms of a unit of
measurement. Quantity is among the basic classes of things along with
quality, substance, change, and relation. Some quantities are such by
their inner nature (as number), while others are functioning as states
(properties, dimensions, attributes) of things such as heavy and light,
long and short, broad and narrow, small and great, or much and little. A
small quantity is sometimes referred to as a quantulum.
Physical Quantity is a physical property of a phenomenon, body, or
substance, that can be quantified by measurement. A physical quantity can
be expressed as the combination of a magnitude expressed by a number –
usually a real number – and a unit: n u where n is the magnitude and u is
the unit.
Volume is the amount of
3-dimensional space occupied by an object. The
property of something that is great in magnitude.
Volume is the quantity of three-dimensional space enclosed
by a closed surface, for example, the space that a substance (solid,
liquid,
gas, or plasma) or shape occupies or contains. Volume is often
quantified numerically using the SI derived unit, the cubic metre. The
volume of a container is generally understood to be the capacity of the
container, i. e. the amount of fluid (gas or liquid) that the container
could hold, rather than the amount of space the container itself
displaces.
Sound Volume.
Capacity is the capability to perform or
produce. The maximum production
possible. The power to learn or retain knowledge; in law, the
ability to understand the facts and significance of your
behavior.
Capacity (wiki) -
Limits (engineering).
Load
is a quantity that can be processed or transported at one time. The
power output of a generator or power plant.
Structural Load are forces, deformations, or accelerations
applied to a structure or its components.
Loads cause stresses,
deformations, and displacements in
structures. Assessment of their effects is carried out by the methods
of structural analysis. Excess load or overloading may cause structural
failure, and hence such possibility should be either considered in the
design or strictly controlled. Mechanical structures, such as aircraft,
satellites, rockets, space stations, ships, and submarines, have their own
particular structural loads and actions. Engineers often evaluate
structural loads based upon published regulations, contracts, or
specifications. Accepted technical standards are used for acceptance
testing and inspection.
Mass is the property of a body that causes it to have
weight in a
gravitational field. A body of matter without definite shape.
The property of something that is great in magnitude.
Mass (matter).
Weight
is the vertical
force exerted by a
mass as a result of
gravity. An artifact that is heavy. The
relative importance granted to something. A system of units used
to express the weight of something. (statistics) a coefficient
assigned to elements of a frequency distribution in order to
represent
their relative importance.
Weight of an object is usually taken to be the force on the
object due to gravity. A unit used to measure weight.
Weigh is to determine the weight of
something. Show
consideration for
something and take into account. Have weight; have import, carry weight.
Heavy is of comparatively great physical
weight or density.
Density is the
spatial property of being crowded together or the amount per unit size.
Dimension is one of three
cartesian coordinates that determine
a position in
space. A construct whereby objects or individuals can be
distinguished. Dimension in physics is the physical units of a
quantity,
expressed in terms of fundamental quantities like time, mass and
length.
Dimension
of a mathematical space or object is informally defined as the minimum
number of coordinates needed to specify any point within it. Thus a line
has a dimension of one because only one coordinate is needed to specify a
point on it – for example, the point at 5 on a number line. A surface such
as a
plane or the
surface of a cylinder or
sphere has a dimension of two
because two coordinates are needed to specify a point on it – for example,
both a latitude and longitude are required to locate a point on the
surface of a sphere. The inside of a cube, a cylinder or a sphere is
three-dimensional because three coordinates are needed to locate a point
within these spaces
Shapes -
Geometry
-
Dimensions in Space
Cartesian Coordinates is one of the coordinates in a system of coordinates that locates a
point on a plane or in space by its distance from two lines or
three planes respectively; the two lines or the intersections of
the three planes are the coordinate axes.
Cartesian Coordinate System.
Coordinate is a number that identifies a
position relative to an
axis, which is a
straight line through a body or figure that satisfies
certain conditions.
Size is the physical magnitude of something
or how big or large it is.
Size is
the magnitude or
dimensions of a
thing, or how big something is. Size can be
measured as length, width,
height, diameter, perimeter, area, volume, or
mass.
Sizes (nano) -
Atoms -
Universe
-
Spatial Intelligence
-
Shoe Size
Height is the vertical
dimension of extension; distance from the base of
something to the top.
Height is the measure of vertical distance, either how
"tall" something is, or how "high up" it is.
Human Body Height.
Geometry
(shapes)
Length is the linear extent in space from one end to the other; the
longest
dimension of something that is fixed in place.
Size of the gap between two places. Continuance in time.
Length is the most extended dimension of an object, any
quantity with dimension distance.
Orders of Magnitude (length) (wiki).
Distance is the property created by the
space between two objects or points.
A remote point in time. The interval between two
times.
Distance is a numerical description of how far apart objects
are.
Furlong
is a measure of distance in imperial units and U.S. customary units equal
to one eighth of a mile, equivalent to 660 feet, 220 yards, 40 rods, or 10
chains. Using the international definition of the inch as exactly 25.4
millimeters, one furlong is 201.168 meters. Furlong was the distance a
team of oxen could plough without resting. This was standardized to be
exactly 40 rods or 10 chains.
Acre
equals 1⁄640 (0.0015625) square mile, 4,840 square yards, 43,560 square
feet. Traditionally defined as the area of one chain by one furlong (66 by
660 feet), which is exactly equal to 10 square chains, 1⁄640 of a square
mile, or 43,560 square feet, and approximately 4,047 m2, or about 40% of a
hectare. The international symbol of the acre is ac. The most common use
of the acre is to measure tracts of land. The acre, based upon the
International yard and pound agreement of 1959, is defined as exactly
4,046.8564224 square meters.
Duration is the period of
time
during which something continues.
Duration is the amount of elapsed time between two events.
Frequency (HZ) -
Action Physics
Interval is a definite length of
time
marked off by two instants. A set containing all points (or all
real numbers) between two given endpoints.
The distance between things.
Interval in mathematics is a set of real numbers with the
property that any number that lies between two numbers in the set is also
included in the set.
Planning -
Predictions -
Patterns
Cycle is an interval during which a recurring sequence of events occurs.
A periodically repeated sequence of events. A single complete
execution of a
periodically repeated phenomenon. Cause to go
through a recurring
sequence.
Seasons
(earth) -
Life-Cycle Assessment
(development)
Sequence is a
serial arrangement in which things follow in logical order or a
recurrent pattern. A following of one thing after another in
time.
The action of following in order.
Sequence is an enumerated collection of objects in which
repetitions are allowed. Like a set, it contains members (also called
elements, or terms).
Stages.
Measuring Value -
Assessments (errors)
Evaluate is to evaluate or
estimate the nature,
quality,
ability, extent, or
significance of.
Evaluation
is a systematic determination of a subject's merit, worth and
significance, using criteria governed by a set of standards. It can assist
an organization, program, project or any other intervention or initiative
to assess any aim, realisable concept/proposal, or any alternative, to
help in
decision-making; or to
ascertain the degree of achievement or value in regard to the aim and
objectives and results of any such action that has been completed. The
primary purpose of evaluation, in addition to gaining insight into prior
or existing initiatives, is to enable reflection and assist in the
identification of
future change.
Videos that Teach Math - Math Films
Khan
Academy: Math Tutorial Videos
Math
Videos (youtube)
Math Help
Online
Resources for Learning Math
Paul Dirac
Carnegie Learning
The Math
Page
Math
is Fun
Cool
Math 4 Kids
IXL
Math Words
Math
World
Art
of Problem Solving
Conrad
Wolfram: Teaching Kids Real Math with Computers (youtube)
Math Games and Puzzles
The Story of "1" (film)
The Colors
Of Infinity (youtube)
Fermat's Last Theorem (youtube)
Agape
Satori - Mathematics is The Language of Nature (youtube)
Math Using
Lines (youtube)
Number-Phile (youtube channel)
Numberphile (website)
4.669 - Numberphile
(youtube)
Solving
Multivariable Equations
(youtube)
How to Use
Rectangular Arrays to Teach Multiplication, Factors, Primes,
Composites, Squares
Technical
Math Courses
Mathologer
Math Symbols
Math
Trick: Multiply Numbers Close To Each Other In Your Head (youtube)
Math Contests - Math Competitions
Fields Medal is a prize awarded to two, three, or four mathematicians
under 40 years of age at the International Congress of the International
Mathematical Union (IMU), a meeting that takes place every four years. The
Fields Medal is sometimes viewed as the highest honor a mathematician can
receive. The Fields Medal and the
Abel
Prize have often been described as the mathematician's "Nobel Prize".
The Fields Medal differs from the Abel in view of the age restriction
mentioned above.
Mathematical Olympiad
The
International Mathematical Olympiad
MOSP (wiki)
USA Math Camp Advanced Mathematics ("cool math")
Nobel
Prize is a set of annual international awards bestowed in a number of
categories by Swedish and Norwegian institutions in recognition of
academic, cultural, or scientific advances.
Math Trick
Choose a number 1 through 10.
Lets say that you choose the
number 8.
Now double that number, which would now be 16.
Now add 6
to 16, which is now 22.
Now dived 22 by 2, which is now 11.
Now
minus the original number, which is 8 from 11.
Your answer is 3.
No
mater which number you choose from 1 to 10, or 1 to a million, you will
always get the same answer, "3"
Kind of
like Voting in Politics, no matter how you add it up you always end up
with the same old sh*t.
Sum of three cubes for 42 finally solved -- using real life planetary
computer. Mathematicians have solved the final piece of the famous
65-year-old math puzzle with an answer for the most elusive number of all
- 42.
Systems - Principles - Standards
Singapore Math is teaching students to learn and master
fewer mathematical concepts at greater detail as well as having them learn
these concepts using a three-step learning process. The three steps are:
concrete, pictorial, and abstract. In the concrete step, students engage
in hands-on learning experiences using concrete objects such as chips,
dice, or paper clips. This is followed by drawing pictorial
representations of mathematical concepts. Students then solve mathematical
problems in an abstract way by using numbers and symbols.
Metric System
is a decimal system of weights and measures based on the meter and the
kilogram and the second, multipliers that have positive powers of ten.
International System of Units or
SI
is the modern form of the metric system, and is the most widely used
system of measurement. It comprises a coherent system of units of
measurement built on seven base units. The system also establishes a set
of twenty prefixes to the unit names and unit symbols that may be used
when specifying multiples and fractions of the units.
Cubit is
an ancient unit based on the forearm length from the middle finger tip to
the elbow bottom.
Roman Numerals is a system represented by combinations of
letters from the Latin alphabet. Roman numerals, as used today, are based
on seven symbols: I = 1, V + 5, X =10, L= 50, C = 100,
D= 500, M= 1,000.
The Principles of Mathematics (wiki)
Mathematics
Teaching Standards
Secrets
of Mental Math (Book)
Math Forum
Math Lab
The Math
League
National Council
of Teacher of Mathematics
National Council of Teachers of Mathematics
(wiki)
Euclid's Elements is a collection of definitions, postulates,
propositions (theorems and constructions), and mathematical proofs of the
propositions. A mathematical
treatise consisting of 13 books attributed to
the ancient Greek mathematician Euclid in Alexandria, Ptolemaic Egypt c. 300 BC.
Life by the Numbers
Pi
is
3.14159, which is the
ratio of a
circle's circumference to its
diameter. Pi is an
irrational
number, meaning it cannot be referenced exactly as a fraction, but
only as a decimal. Pi is not expressible as the quotient of two integers
or can't be equally divided. Pi is also a
Mathematical constant.
A computer calculated PI out to 2.7 trillion
decimal
places. A man calculated PI in his head out to 70,000 decimal places.
15 decimal places is what most Engineers need to use (
3.141592653589793).
Pi Day
is an annual celebration of the mathematical constant π (pi). Pi Day is
observed on March 14 (3/14 in the month/day format) since 3, 1, and 4 are
the first three significant digits of π.
Approximations of Pi (wiki) -
Tau or Pi (youtube) -
TD -
Tau (wiki)
Symmetry -
Fractals -
Mandelbrot Set
Phi also
used as a symbol for the
golden ratio, a
mathematical
constant.
Basel
Problem is a problem in mathematical analysis with relevance to number
theory. The sum of the series is approximately equal to 1.644934. Euler's
original derivation of the value π2/6 or Pi squared divided by 6,
essentially extended observations about finite polynomials and assumed
that these same properties hold true for infinite series.
Planck Units are a set of units of measurement defined
exclusively in terms of five universal physical constants, in such a
manner that these five physical constants take on the numerical value of 1
when expressed in terms of these units.
Matryoshka
Doll or Russian doll, is a set of wooden dolls of decreasing
size placed one inside another. The name "matryoshka" (матрёшка),
literally "little matron", is a diminutive form of Russian female first
name "Matryona" (Матрёна) or "Matriosha".
Borromean
Rings consist of three topological circles which are linked
and form a Brunnian link (i.e., removing any ring results in two unlinked
rings). In other words, no two of the three rings are linked with each
other as a Hopf link, but nonetheless all three are linked.
Efimov State is
an effect in the quantum mechanics of few-body systems. Efimov’s effect is
where three identical bosons interact, with the prediction of an infinite
series of excited three-body energy levels when a two-body state is
exactly at the dissociation threshold. One corollary is that there exist
bound states (called Efimov states) of three bosons even if the
two-particle attraction is too weak to allow two bosons to form a pair. A
(three-particle) Efimov state, where the (two-body) sub-systems are
unbound, are often depicted symbolically by the Borromean rings. This
means that if one of the particles is removed, the remaining two fall
apart. In this case, the Efimov state is also called a Borromean state.
Elliptic Curves
is a plane algebraic curve defined by an equation of the form.
Shapes.
Infinity
is an abstract concept describing
something without any bound or larger
than any number.
Myriad is something
being
too numerous to be counted. A large indefinite number.
Uncountable is something that is not able
to be counted because there are too many to count.
Constant.
Proof by Infinite Descent shows that a given equation has no
solutions.
Infinity Plus
One are representations of sizes (cardinalities) of abstract sets,
which may be infinite. Addition of cardinal numbers is defined as the
cardinality of the disjoint union of sets of given
cardinalities.
Power Set (wiki)
Finite Topological Space is a topological space for which the
underlying point set is finite. That is, it is a topological space for
which there are only finitely many points.
Finite describes something that is bounded or limited in magnitude
or
spatial or
temporal extent. Having an end or limit; constrained by bounds.
Finite Set is a set that has a finite number of elements.
Element of a set is any one of the distinct objects that make up that
set.
Set is a well-defined collection of distinct objects, considered as an
object in its own right.
Mathematical
object is an abstract object arising in mathematics.
Set
Theory is a branch of mathematical logic that studies sets, which
informally are collections of objects. Although any type of object can be
collected into a set, set theory is applied most often to objects that are
relevant to mathematics. The language of set theory can be used in the
definitions of nearly all mathematical objects. (odd number + even number
= Odd number).
"Infinity in an finite world with finite time. Infinity shows us endless
possibilities, a math phenomenon that seemingly goes on forever. But
nothing lasts forever. Our planet will die someday, our sun will die
someday, and every person on earth will die someday. But new stars
will form and new planets will be born, and over 350,000 new humans are
born everyday. And the universes has 100's of trillions of years left, if
not more, which is not forever, but it may as well be forever.
Matter can not be destroyed or
created, matter can only be transformed. But matter was created
because matter exists, so matter can be created again, but only if it has
to be created again. So let's focus on the finites because finites is our
Reality. Let infinity be a symbol for endless
possibilities, which is a lot easier on the mind then trying to wrap your
head around an idea that has no limits, and it also helps us live more in
our reality instead of thinking about a perceived reality that can
literally blow your mind."
Permutation
relates to the act of arranging all the members of a set into some
sequence or order, or if the set is already ordered, rearranging
(reordering) its elements, a process called permuting.
Recursion
occurs when a thing is
defined in terms
of itself or of its type.
Recursion is a method where the
solution to a problem depends on
solutions to smaller instances of the same problem (as opposed to
iteration).
Iteration in computer science, is a single execution of a set of
instructions that
are to be repeated.
Executing the same set of
instructions a given number of times or until a specified result is
obtained.
Doing or saying again; a
repeated performance. Repeating a
process.
Googol is the large number 10100. In decimal notation, it is
written as the digit 1 followed by one hundred 0s:
Large Numbers
are numbers that are significantly larger than those
ordinarily used in everyday life.
Names of Large Numbers
(wiki) -
Law of Large Numbers
(wiki)
1,000
thousand, 1,000,000
million,
1,000,000,000
billion,
1,000,000,000,000
trillion,
1,000,000,000,000,000
quadrillion, 1,000,000,000,000,000,000
quintillion, 1,000,000,000,000,000,000,000
sextillion 1,000,000,000,000,000,000,000,000
septillion,
1,000,000,000,000,000,000,000,000,000
octillion,
a one with 27 zeros after it.
Numbers.
Bytes (zeros and ones) -
Sizes (big to small)
Natural Number
are those used for counting.
Numbers -
Integer.
Whole Number
or Natural Number is a number without fractions. An integer. Cardinal
Number is also called whole number or natural number, which are those used
to count physical objects in the real world. They are integers that can be
zero or positive.
Real
Number is a
value that
represents a
measurable quantity. A value of a
continuous quantity
that can represent a distance along a line.
Definable Real Number is a real number that can be uniquely
specified by its
description.
Ordinal Number
is one generalization of the concept of a natural
number that is used to
describe a way to arrange a
collection of objects in order, one after
another.
Cardinal Number
is the number of elements in a mathematical set; denotes a quantity but not
the order.
Cardinal Number are a generalization of the natural numbers
used to measure the cardinality (size) of sets.
Trinity
is the cardinal number that is the sum of one and one and one. Three people
considered as a unit.
Hyperreal Number
is a way of treating infinite and infinitesimal quantities.
Surreal Number
system is a totally ordered class containing the real numbers as well as
infinite and infinitesimal numbers, respectively larger or smaller in
absolute value than any positive real number.
0
as the number Zero fulfills a central role in mathematics as the additive
identity of the integers, real numbers, and many other algebraic
structures. As a digit, 0 is used as a placeholder in place value systems.
Rational
Number s any number that can be expressed as the quotient or fraction
p/q of two integers, a numerator p and a non-zero denominator q.
Irrational
Number are all the
Real Number which are not
rational numbers. Numbers constructed from ratios (or fractions) of
integers. When the ratio of lengths of two line segments is an irrational
number, the line segments are also described as being incommensurable,
meaning that they share no "measure" in common, that is, there is no
length ("the measure"), no matter how short, that could be used to express
the lengths of both of the two given segments as integer multiples of
itself. Among irrational numbers are the
ratio π of a
circle's circumference to its diameter, Euler's number e, the
golden ratio φ, and the square root of two; in fact
all square roots of natural numbers, other than of perfect squares, are
irrational.
Irrational is something
that is
not consistent
or precisely and clearly
expressed.
Prime Number is a
Natural Number
or whole number greater than 1 whose only factors are 1 and itself and has
no positive divisors other than 1 and itself. For example, 5 is prime
because 1 and 5 are its only positive integer factors, whereas 6 is
composite because it has the divisors 2 and 3 in addition to 1 and 6. A factor is a whole numbers
that can be divided evenly into another number. greater than 1 that (5 is a Prime).
The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29. A
natural number (1, 2, 3, 4, 5, 6, etc.) is called a prime number (or a
prime) if it is greater than 1 and cannot be written as a product of two
natural numbers that are both smaller than it. The numbers greater than 1
that are not prime are called composite numbers. In other words, n is
prime if n items cannot be divided up into smaller equal-size groups of
more than one item, or if it is not possible to arrange n dots into a
rectangular grid that is more than one dot wide and more than one dot
high. For example, among the numbers 1 through 6, the numbers 2, 3, and 5
are the prime numbers, as there are no other numbers that divide them
evenly (without a remainder). 1 is not prime, as it is specifically
excluded in the definition. 4 = 2 × 2 and 6 = 2 × 3 are both composite.
There are infinitely many primes, as demonstrated by Euclid around 300 BC.
No known simple formula separates prime numbers from composite numbers.
However, the distribution of primes within the natural numbers in the
large can be statistically modelled. The first result in that direction is
the prime number theorem, proven at the end of the 19th century, which
says that the probability of a randomly chosen number being prime is
inversely proportional to its number of digits, that is, to its logarithm.
Largest known Prime Number a number with 17,425,170 digits
Great Internet Mersenne Prime Search
Strobogrammatic Prime
is a prime number that, given a base and given a set of
glyphs, appears the same
whether viewed normally or upside down.
Prime
Quadruplet is a set of four primes of the form {p, p+2,
p+6, p+8}. This represents the closest possible grouping of four primes
larger than 3.
Composite Number
is a positive integer, ornatural number, that can be formed by multiplying
together two smaller positive integers. Equivalently, it is a positive
integer that has at least one divisor other than 1 and itself. Every
positive integer is composite, prime, or the unit 1, so the composite
numbers are exactly the numbers that are not prime and not a unit.
Palindromic Number
is a number that remains the same when its digits are reversed. Like
16461, for example, it is "symmetrical".
101
Transcendental Number. The best-known transcendental
numbers are π and e. Almost all real and complex numbers are
transcendental, since the algebraic numbers are countable while the sets
of real and complex numbers are both uncountable. All real transcendental
numbers are irrational, since all rational numbers are algebraic. The
converse is not true: not all irrational numbers are transcendental.
Imaginary Numbers
(Lateral) (youtube) Fundamental Theorem of Algebra - Square Root of
Negative One.
Plato's Number -
216
-
Wolfram
5040 is a factorial (7!), a superior highly composite
number, a colossally abundant number, and the number of permutations of 4
items out of 10 choices (10 × 9 × 8 × 7 = 5040).
Pseudorandom Number Generator is an algorithm for
generating a sequence of numbers whose properties approximate the
properties of sequences of random numbers
Square-Free Integer
is an integer which is divisible by
no other perfect square than 1. For example, 10 is square-free but 18 is
not, as 18 is divisible by 9 = 32.
Countable Set is a set with the same cardinality (number of
elements) as some subset of the set of natural numbers. A countable set is
either a finite set or a countably infinite set. Whether finite or
infinite, the elements of a countable set can always be counted one at a
time and, although the counting may never finish, every element of the set
is associated with a unique natural number.
Digital Root of a non-negative integer is the (single digit)
value obtained by an iterative process of summing digits, on each
iteration using the result from the previous iteration to compute a digit
sum. The process continues until a single-digit number is reached. For
example, the digital root of 65,536 is 7, because 6 + 5 + 5 + 3 + 6 = 25
and 2 + 5 = 7.
Additive
identity of a set which is equipped with the operation of addition is
an element which, when added to any element x in the set, yields x. One of
the most familiar additive identities is the number 0 from elementary
mathematics, but additive identities occur in other mathematical
structures where addition is defined, such as in groups and rings.
Numerical Digit
is a numeric symbol (such as "2" or "5") used in combinations (such as
"25") to represent numbers
(such as the number 25) in positional
numeral systems.
Numeral System
is a writing system for expressing numbers; that is, a mathematical
notation for representing numbers of a given set, using digits or other
symbols in a consistent manner. It can be seen as the context that allows
the symbols "11" to be interpreted as the binary symbol for three, the
decimal symbol for eleven, or a symbol for other numbers in different
bases.
TWL
#7: This Number is Illegal Prime Numbers and Encryption
(youtube)
Logarithmic integral is a special function. It is relevant
in problems of physics and has number theoretic significance, occurring in
the prime number theorem as an estimate of the number of prime numbers
less than a given value.
Logarithm is the inverse operation to exponentiation. That
means the logarithm of a number is the exponent to which another fixed
number, the base, must be raised to produce that number. In simple cases
the logarithm counts factors in multiplication. For example, the base 10
logarithm of 1000 is 3, as 10 to the power 3 is 1000 (1000 = 10 × 10 × 10
= 103); 10 is used as a factor three times. More generally, exponentiation
allows any positive real number to be raised to any real power, always
producing a positive result, so the logarithm can be calculated for any
two positive real numbers b and x where b is not equal to 1.
Logarithmic Scale is a nonlinear scale used when there is a
large range of quantities. Common uses include the earthquake strength,
sound loudness, light intensity, and pH of solutions. It is based on
orders of magnitude, rather than a standard linear scale, so each mark on
the scale is the previous mark multiplied by a value.
Logarithmic Growth describes a phenomenon whose size or cost
can be described as a logarithm function of some input. e.g. y = C log
(x). Note that any logarithm base can be used, since one can be converted
to another by multiplying by a fixed constant. Logarithmic growth is the
inverse of exponential growth and is very slow. A familiar example of
logarithmic growth is the number of digits needed to represent a number,
N, in positional notation, which grows as logb (N), where b is the base of
the number system used, e.g. 10 for decimal arithmetic
Fermat's Last Theorem states that no three positive integers
a, b, and c satisfy the equation
an
+ bn = cn for any
integer value of n greater than two. The cases n = 1 and n = 2 have been
known to have infinitely many solutions since antiquity.
Riemann
Hypothesis is a conjecture that the Riemann zeta
function has its zeros only at the negative even integers and complex
numbers with real part 1/2.
Goldbach Conjecture states that every even integer greater
than 2 can be expressed as the sum of two primes.
Probability Theory is the branch of mathematics
concerned with
probability, the analysis of random
phenomena.
Chaos Theory studies the behavior of dynamical systems that
are highly sensitive to initial conditions—a response popularly referred
to as the
butterfly
effect. Small differences in initial conditions (such as those due to
rounding
Errors in numerical
computation) yield widely diverging outcomes for such dynamical systems,
rendering
long-term prediction
of their behavior impossible in general. This happens even though these
systems are deterministic, meaning that their future behavior is fully
determined by their initial conditions, with no random elements involved.
In other words, the deterministic nature of these systems does not make
them predictable. This behavior is known as deterministic chaos, or simply chaos.
Polynomial
is an expression consisting of
variables
(or indeterminates) and coefficients, that involves only the operations of
addition, subtraction, multiplication, and non-negative integer exponents.
Theta Function are special functions of several complex
variables.
They are important in many areas, including the theories of abelian
varieties and moduli spaces, and of quadratic forms. They have also been
applied to soliton theory. When generalized to a Grassmann algebra, they
also appear in quantum field theory.
Modular Forms is a (complex)
analytic function on the
upper half-plane satisfying a certain kind of functional equation with
respect to the group action of the modular group, and also satisfying a
growth condition.
Constructivism asserts that it is necessary to find (or
"construct") a mathematical object to prove that it exists. When one
assumes that an object does not exist and derives a contradiction from
that assumption, one still has not found the object and therefore not
proved its existence, according to constructivism. This viewpoint involves
a verificational interpretation of the existence quantifier, which is at
odds with its classical interpretation.
Duodecimal is a positional notation numeral system
using twelve as its base.
12
Dozenal Society of America
Action
Physics -
Physics -
Magnetics
Euler Identity -
The number 0 is the additive identity. The number 1 is the
multiplicative identity. The number π or pi is the ratio of the
circumference of a circle to its diameter. (π = 3.141...). The number e (e
= 2.718...) is Euler's number, the base of natural logarithms, which
occurs widely in mathematical analysis. The number i is the imaginary unit
of the complex numbers, which by definition satisfies i2 = −1. Euler
idetity
equation is simple to look at and yet incredibly profound, it
comprises the five most important mathematical constants - zero
(additive identity), one (multiplicative identity), e and pi
(the two most common transcendental numbers) and i (fundamental
imaginary number). It also comprises the three most basic
arithmetic operations - addition, multiplication and
Exponentiation."
"We study mathematics for play, for
beauty, for truth, for justice and for love." -
Francis Su
Leonhard Euler (15 April 1707 – 18 September 1783) was a
Swiss mathematician, physicist, astronomer, logician and engineer who made
important and influential discoveries in many branches of mathematics like
infinitesimal calculus and graph theory while also making pioneering
contributions to several branches such as topology and analytic number
theory.
Euler Characteristic is a topological invariant, a number
that describes a topological space's shape or structure regardless of the
way it is bent.
101 (different meanings).
Imaginary Unit or unit imaginary number (i) is a solution to the
quadratic equation x2 + 1 = 0. Although there is no real number with this
property, i can be used to extend the real numbers to what are called
complex numbers, using addition and multiplication. A simple example of
the use of i in a complex number is 2 + 3i. Imaginary numbers are an
important mathematical concept, which extend the real number system R to
the complex number system C, which in turn provides at least one root for
every nonconstant polynomial P(x). (See Algebraic closure and Fundamental
theorem of algebra.) The term "imaginary" is used because there is no real
number having a negative square. There are two complex square roots of −1,
namely i and −i, just as there are two complex square roots of every real
number other than zero, which has one double square root. In contexts
where i is ambiguous or problematic, j or the Greek ι is sometimes used
(see § Alternative notations). In the disciplines of electrical
engineering and control systems engineering, the imaginary unit is
normally denoted by j instead of i, because i is commonly used to denote
electric current. For the history of the imaginary unit, see Complex
number § History.
The Institute of Mathematics and its Applications
Mathematical Sciences
Research Institute
Jim Simons: A rare interview with the Mathematician who cracked
Wall Street (video)
Chern-Simons Theory
Math is Beautiful to the Mind
Eugene Wigner (November 17, 1902 – January 1, 1995), was a
Hungarian-American theoretical physicist, engineer and mathematician. He
received half of the Nobel Prize in Physics in 1963 "for his contributions
to the theory of the atomic nucleus and the elementary particles,
particularly through the discovery and application of fundamental symmetry
principles
Hermann Minkowski (22 June 1864 – 12 January 1909) was a
Jewish German mathematician, professor at Königsberg, Zürich and Göttingen.
He created and developed the geometry of numbers and used geometrical
methods to solve problems in number theory, mathematical physics, and the
theory of relativity.
Pontryagin's Minimum Principle is used in optimal
control
theory to find the best possible control for taking a dynamical system
from one state to another, especially in the presence of constraints for
the state or input controls.
Pontryagin Duality in harmonic analysis and the theory of
topological groups, Pontryagin duality explains the general properties of
the Fourier transform on locally compact groups, such as R, the circle, or
finite cyclic groups. The Pontryagin duality theorem itself states that
locally compact abelian groups identify naturally with their bidual.
Pontryagin Class lies in
cohomology groups with degree a multiple of four. It applies to real vector bundles.
Symmetry - Beautiful Numbers
Symmetry is an agreement in
dimensions
and
arrangement. A
sense of
harmonious and
beautiful proportion and
balance.
Proportionate is exhibiting
equivalence or
correspondence among
constituents of an entity or between
different
entities. The correct, attractive, or ideal relationship in size or
shape
between one thing and another or between the
parts of a whole. The
relationship of one thing to another in terms of
quantity, size, or
number; the
ratio.
Facial Symmetry
is one specific measure of bodily
asymmetry.
1.618 -
Pi.
Symmetry
Number of an object is the
number of different but indistinguishable or equivalent arrangements or
views of the object.
Platonic Solids -
Patterns
-
Time Symmetry Order is the
arrangement or
disposition of people or things in
relation to each other
according to a particular
sequence,
pattern,
or method. A state in which everything is in its correct or appropriate
place. The opposite of
Chaos.
Eightfold way in physics is a theory
organizing subatomic
hadrons.
Group Theory -
Intelligent Design.
Symmetry in Biology is the
balanced distribution of duplicate body
parts or shapes within the body of an organism.
Right Brain and Left Brain.
Molecular Symmetry in
chemistry describes the symmetry present in
molecules and the classification of molecules according to their symmetry.
Molecular symmetry is a fundamental concept in chemistry, as it can be
used to predict or explain many of a molecule's chemical properties, such
as its dipole moment and its allowed spectroscopic transitions. Many
university level textbooks on physical chemistry, quantum chemistry, and
inorganic chemistry devote a chapter to symmetry.
DNA (CTAG)
Bilateria are animals with bilateral symmetry, i.e., they have a
front ("anterior") and a back ("posterior") as well as an upside
("dorsal") and downside ("ventral"); therefore they also have a left side
and a right side. In contrast, radially symmetrical animals like jellyfish
have a topside and a downside, but no identifiable front or back.
Symmetry in
physics of a physical system is a physical or mathematical
feature of the system (observed or intrinsic) that is preserved or remains
unchanged under some transformation.
Radiolaria are
protozoa of diameter
0.1–0.2 mm that produce intricate mineral skeletons, typically with a
central capsule dividing the cell into the inner and outer portions of
endoplasm and ectoplasm. The elaborate mineral skeleton is usually made of
silica. They are found as
zooplankton throughout the ocean, and their
skeletal remains make up a large part of the cover of the ocean floor as
siliceous ooze. Due to their rapid change as species, they represent an
important
diagnostic fossil found from the Cambrian onwards. Some common
radiolarian fossils include Actinomma, Heliosphaera and Hexadoridium.
Sound Shapes.
Discrete Symmetry is a symmetry that describes
non-continuous changes
in a system. For example, a square possesses discrete rotational symmetry,
as only rotations by multiples of right angles will preserve the square's
original appearance. Discrete symmetries sometimes involve some type of
'swapping', these swaps usually being called reflections or interchanges.
In mathematics and theoretical physics, a discrete symmetry is a symmetry
under the
transformations of a discrete group—e.g. a topological group
with a discrete topology whose elements form a finite or a countable set.
One of the most prominent discrete symmetries in physics is parity
symmetry. It
manifests itself in various elementary physical quantum
systems, such as quantum harmonic oscillator,
electron orbitals of
Hydrogen-like atoms by forcing wavefunctions to be even or odd. This in
turn gives rise to selection rules that determine which transition lines
are visible in atomic absorption spectra.
Parity in physics is the flip in the sign of one spatial coordinate. In
three dimensions, it is also often described by the simultaneous flip in
the sign of all three spatial coordinates (a point reflection).
Symmetry in
Mathematics occurs not only in
Geometry, but also in other branches of mathematics. Symmetry is a
type of invariance: the property that something does not change under a set of transformations.
A Physical Model for Forming Patterns in Pollen.
Physicists have developed a model that describes how patterns form on
pollen spores, the first physically rigorous framework that details
the
thermodynamic processes that lead to complex
biological architectures.
Octahedral Symmetry. A regular octahedron has 24 rotational (or
orientation-preserving) symmetries, and a symmetry order of 48 including
transformations that combine a reflection and a rotation. A cube has the
same set of symmetries, since it is the dual of an octahedron. The group
of orientation-preserving symmetries is S4, the symmetric group or the
group of permutations of four objects, since there is exactly one such
symmetry for each permutation of the four pairs of opposite faces of the octahedron.
Symmetry in
geometry is a circle rotated about its center that will have the
same shape and size as the original
circle—all
points before and after the transform would be indistinguishable. A circle
is said to be symmetric under rotation or to have rotational symmetry. If
the isometry is the reflection of a plane figure, the figure is said to
have reflectional symmetry or line symmetry; moreover, it is possible for
a figure/object to have more than one line of symmetry.
Reflection
Symmetry is symmetry with respect to
reflection. That is, a figure
which does not change upon undergoing a reflection has reflectional
symmetry.
Mirroring.
Orthographic Projection is a means of representing three-dimensional
objects in
two dimensions. It is a
form of parallel projection, in which all the projection lines are
orthogonal to the projection plane, resulting in every plane of the scene
appearing in affine transformation on the viewing surface. The obverse of
an orthographic
projection is an oblique projection, which is a parallel projection in
which the projection lines are not orthogonal to the projection plane.
Plane Curve is a plane curve which is mirror-symmetrical and is
approximately U-shaped.
Universal Parabolic Constant (wiki) -
Parabola
(wiki).
E8
Polytope can be visualized as symmetric orthographic projections in
Coxeter planes of the E8 Coxeter group, and other subgroups.
Uniform 8-Polytope (wiki).
Rotational Symmetry is
a center point around which the object is turned (
rotated) a certain
number of
degrees and the object looks the same. The number of positions in which
the object
looks exactly the same is called the order of the symmetry.
Gauge Symmetry in mathematics any
Lagrangian system generally admits gauge symmetries, though it may
happen that they are trivial. In theoretical physics, the notion of gauge
symmetries depending on parameter functions is a cornerstone of
contemporary field theory.
Continuous Symmetry is an intuitive idea corresponding to the concept
of viewing some symmetries as motions, as opposed to discrete symmetry,
e.g. reflection symmetry, which is invariant under a kind of flip from one
state to another. However, a discrete symmetry can always be reinterpreted
as a subset of some higher-dimensional continuous symmetry, e.g.
reflection of a 2 dimensional object in 3 dimensional space can be
achieved by continuously rotating that object 180 degrees across a
non-parallel plane.
Spontaneous Symmetry Breaking is a mode of realization of symmetry
breaking in a physical system, where the underlying laws are invariant
under a symmetry transformation, but the system as a whole changes under
such transformations, in contrast to explicit symmetry breaking. It is a
spontaneous process by which a system in a symmetrical state ends up in an
asymmetrical state. It thus describes systems where the equations of
motion or the Lagrangian obey certain symmetries, but the lowest-energy
solutions do not exhibit that symmetry.
Chaos.
Translational Symmetry In physics and mathematics, continuous
translational symmetry is the
invariance of a system of equations under
any translation. Discrete translational symmetry is invariant under discrete translation
Supersymmetry
is a proposed type of
spacetime symmetry
that relates two basic classes of elementary particles: bosons, which have
an integer-valued spin, and fermions, which have a half-integer spin. Each
particle from one group is associated with a particle from the other,
known as its superpartner, the
spin of which differs by a half-integer. In
a theory with perfectly "unbroken" supersymmetry, each pair of
superpartners would share the same mass and internal quantum numbers
besides spin.
Space
Group is the symmetry group of a configuration in
space, usually in
three dimensions. In
three dimensions,
there are 219 distinct types, or 230 if chiral copies are considered
distinct. Space groups are also studied in dimensions other than 3 where
they are sometimes called Bieberbach groups, and are discrete cocompact
groups of isometries of an oriented Euclidean space.
Golden Ratio is a common mathematical
ratio
found in nature. It is a special number found by dividing a line into two
parts so that the longer part divided by the smaller part is also equal to
the whole length divided by the longer part.
The Golden Ration is also known as the divine proportion,
golden mean, or
golden section.
Phi
is the
symbol for the golden ratio.
Irrational Number.
1.618 -
1.100111100011011
101
-
PDF.
Golden Angle is the smaller of the two
angles created by sectioning
the circumference of a circle according to the golden ratio; that is, into
two arcs such that the ratio of the length of the larger arc to the length
of the smaller arc is the same as the ratio of the full circumference to
the length of the larger arc.
137.5 Degrees. Algebraically, let a+b
be the circumference of a circle, divided into a longer arc of length a
and a smaller arc of length b such that.
Creating The
Never-Ending Bloom (youtube) - John Edmark's sculptures are both
mesmerizing and mathematical. Using meticulously crafted platforms,
patterns, and layers, Edmark's art explores the seemingly magical
properties that are present in spiral geometries. In his most recent body
of work, Edmark creates a series of animating “blooms” that endlessly
unfold and animate as they spin beneath a strobe light.
137.5 degrees.
Fine-Structure Constant commonly denoted by α (the
Greek letter alpha), is a
dimensionless physical constant characterizing the strength of the
electromagnetic interaction between elementary charged particles. It is
related to the elementary charge e, which characterizes the strength of
the coupling of an elementary charged particle with the electromagnetic
field, by the formula 4πε0ħcα = e2. Being a dimensionless quantity, it has
the same numerical value in all systems of units, which is approximately
(
1 over 137 or 1/137) or α = e2/(hc)=1/137.03599976
137
(one hundred [and] thirty-seven) is the
natural number
following 136.
Planck Constant is a physical constant that is the quantum of
electromagnetic action, which relates the energy carried by a photon to
its frequency. A photon's energy is equal to its frequency multiplied by
the Planck constant. The Planck constant is of fundamental importance in
quantum mechanics, and in metrology it is the basis for the definition of
the kilogram.
Golden Section is the
division of a line so that the whole is to the
greater part as that part is to the smaller part (i.e. in a ratio of 1 to
1/2 (√5 + 1)), a proportion which is considered to be particularly pleasing to the eye.
The Golden Ratio (why it is so irrational) - Numberphile (youtube)
Patterns in Nature are visible regularities of form found in the
natural world. These patterns recur in different contexts and can
sometimes be modelled mathematically. Natural patterns include symmetries,
trees, spirals, meanders, waves, foams, tessellations, cracks and stripes.
Phyllotaxis is the
arrangement of leaves on a plant stem.
Logarithmic Spiral is a self-similar
spiral curve which often appears in nature.
Infinity.
Golden Spiral is a logarithmic spiral whose growth factor is φ, the
golden ratio. That is, a golden spiral gets wider (or further from its
origin) by a factor of φ for every quarter turn it makes.
Logarithm
is the inverse operation to exponentiation, just as division is the
inverse of multiplication. That means the logarithm of a number is the
exponent to which another fixed number, the base, must be raised to
produce that number.
Spiral is a
curve which emanates from a point, moving
farther away as it revolves around the point.
Torus -
LI Patterns.
Fibonacci Number are the numbers in the following
integer
sequence, called the
Fibonacci Sequence, and characterized by the
fact that every number after the first two is the sum of the two preceding
ones: 1+1=2, 1+2=3, 2+3=5, 3+5=8, 5+8=13, 8+13=21....34, 55, 89, 144,
…Fibonacci Sequence 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89....
Fibonacci Zoetrope Sculptures (youtube).
Why do Prime
Numbers make these Spirals? (youtube)
Mathematics of Plant Leaves. Unusual Japanese plant inspires
recalculation of equation used to model leaf arrangement patterns. Common
patterns are symmetrical and have leaves arranged at regular intervals of
90 degrees (basil or mint), 180 degrees (stem grasses, like bamboo), or in
Fibonacci golden angle spirals (like the needles on some spherical cacti,
or the succulent spiral aloe). The angles between O. Japonica leaves are
180 degrees, 90 degrees, 180 degrees, 270 degrees,
and then the next leaf resets the pattern to 180 degrees. No matter what
values are put into the DC2 equation, certain uncommon leaf arrangement
patterns are never calculated. The Fibonacci spiral leaf arrangement
pattern is by far the most common spiral pattern observed in nature, but
is only modestly more common than other spiral patterns calculated by the
DC2 equation.
Rule of Thirds
guideline which applies to the process of composing visual images such as
designs, films, paintings, and photographs. The guideline proposes that an
image should be imagined as divided into nine equal parts by two equally
spaced horizontal lines and two equally spaced vertical lines, and that
important compositional elements should be placed along these lines or
their intersections. Proponents of the technique claim that aligning a
subject with these points creates more tension, energy and interest in the
composition than simply centering the subject.
Everything in our reality possesses a star
tetrahedral energy field,
and planets are no exception. The points of the bases of the two
tetrahedrons in the star
tetrahedron touch an enclosing sphere at 19.47
degrees. At each planet’s
19.47 degree
latitudes we have the intersection between the light body of the planet
and its surface, and since light-bodies have the ability to connect us to
other dimensions, at these
latitudes we
have an energetic predisposition for inter-dimensional experience.
Tetrahedron Grid Points on Planet Earth (image)
Pythagoras was an Ionian Greek
philosopher, mathematician,
and putative founder of the Pythagoreanism movement. He is often revered
as a great mathematician and scientist and is best known for the
Pythagorean theorem, which is a fundamental relation in
Euclidean geometry among the three sides of a right triangle. It
states that the square of the
hypotenuse (the long side opposite the right angle) is equal to the
sum of the squares of the other two sides.
(570
– c. 495 BC).
"All is Number"
Pythagoreanism originated in the 6th century BC, based on
the teachings and beliefs held by
Pythagoras and his followers, the Pythagoreans, who were considerably
influenced by mathematics and mysticism. Later revivals of Pythagorean
doctrines led to what is now called Neopythagoreanism or Neoplatonism.
Pythagorean ideas exercised a marked influence on Aristotle, and Plato,
and through them, all of Western
philosophy.
Tam.
Intelligent Design -
Everything is Connected
Vitruvian Man is a drawing based on the correlations of
ideal human
proportions with geometry described by the ancient Roman
architect Vitruvius in Book III of his treatise De architectura.
The
drawing was by Leonardo da Vinci around 1490. The drawing depicts a man in
two superimposed positions with his arms and legs apart and inscribed in a
circle and square. The drawing and text are sometimes called the Canon of
Proportions or, less often, Proportions of Man. Translated to "The
proportions of the human body according to Vitruvius"), or simply L'Uomo
Vitruviano.
Divina
Proportione is a book on mathematics written by Luca Pacioli and
illustrated by Leonardo da Vinci, composed around 1498 in Milan and first
printed in
1509. Its subject was
mathematical proportions (the title refers to the
golden ratio) and their
applications to geometry, visual art through perspective, and
architecture. The clarity of the written material and Leonardo's excellent
diagrams helped the book to achieve an impact beyond mathematical circles,
popularizing contemporary geometric concepts and images.
Leonardo da Vinci was an Italian polymath of the Renaissance whose
areas of interest included invention, drawing, painting, sculpting,
architecture, science, music, mathematics, engineering, literature,
anatomy, geology, astronomy, botany, writing, history, and cartography. He
has been variously called the father of palaeontology, ichnology, and
architecture, and he is widely considered one of the greatest painters of
all time. Sometimes credited with the inventions of the parachute,
helicopter, and tank, he epitomised the Renaissance humanist ideal. (15
April 1452 – 2 May 1519).
Mandelbrot Set is a particular set of complex numbers
that has a highly convoluted fractal boundary when plotted. The set
of values of c in the complex plane for which the orbit of 0 under
iteration of the quadratic map remains bounded. That is, a complex number
c is part of the Mandelbrot set if, when starting with z0 = 0 and applying
the iteration repeatedly, the absolute value of zn remains bounded however
large n gets. The
Mandelbrot set is generated by what is called iteration, which means
to repeat a process over and over again. In mathematics this process is
most often the application of a mathematical function. For the
Mandelbrot set, the functions involved are some of the simplest
imaginable: they all are what is called quadratic polynomials and have the
form f(x) = x2 + c, where c is a constant number. As we go along, we will
specify exactly what value c takes. . To iterate x2 + c, we begin with a
seed for the iteration. This is a number which we write as x0. Applying
the function x2 + c to x0 yields the new number. x1 = x02 + c. Now, we
iterate using the result of the previous computation as the input for the
next. That is x2 = x12 + c and then x3 = x22 + c and then x4 = x32 + c and
then x5 = x42 + c and so forth. The list of numbers x0, x1, x2,...
generated by this iteration has a name: it is called the orbit of x0 under
iteration of x2 + c.
Plot the Mandelbrot Set By Hand.
Mandelbulb
is a three-dimensional fractal. A
canonical 3-dimensional Mandelbrot set does not exist, since there is
no 3-dimensional analogue of the
2-dimensional space of complex numbers. It is possible to construct
Mandelbrot sets in 4 dimensions using
quaternions and
bicomplex numbers.
Fractal is a
geometric pattern that is repeated at every
scale and so cannot be represented
by classical
geometry.
Fractal is a
mathematical set that exhibits a
repeating pattern that displays at every
scale. It is also known as
expanding symmetry or
evolving symmetry. If the
replication is exactly the same at every
scale, it is called a
self-similar pattern. An example of this is the Menger Sponge. A fractal
is a curve or geometric figure, each part of which has the same
statistical character as the whole. Fractals are useful in modeling
structures (such as eroded coastlines or snowflakes) in which similar
patterns recur at progressively smaller scales, and in describing partly
random or chaotic phenomena such as crystal growth, fluid turbulence, and
galaxy formation.
One way that fractals are different from finite geometric figures is the
way in which they scale. Doubling the edge lengths of a polygon multiplies
its area by four, which is two (the
ratio of the new
to the old side length) raised to the power of two (the dimension of the
space the
polygon resides in). Likewise, if the radius of a sphere is
doubled, its volume scales by eight, which is two (the ratio of the new to
the old radius) to the power of three (the dimension that the sphere
resides in). However, if a fractal's one-dimensional lengths are all
doubled, the spatial content of the fractal scales by a power that is not
necessarily an integer This power is called the fractal dimension of the
fractal, and it usually exceeds the fractal's topological dimension.
Analytically, fractals are usually nowhere differentiable. An infinite
fractal curve can be conceived of as winding through space differently
from an ordinary line – although it is still
1-dimensional, its fractal
dimension indicates that it also resembles a surface.
Iterated Function is a
function X ? X (that
is, a function from some set X to itself) which is obtained by composing
another function f : X ? X with itself a certain number of times. The
process of repeatedly applying the same function is called iteration. In
this process, starting from some initial number, the result of applying a
given function is fed again in the function as input, and this process is
repeated. Iterated functions are objects of study in computer science,
fractals, dynamical systems, mathematics and renormalization group
physics.
Iteration is the repetition of a process in order to generate a
(possibly unbounded) sequence of outcomes. The sequence will approach some
end point or end value. Each repetition of the process is a single
iteration, and the outcome of each iteration is then the starting point of
the next iteration. In mathematics and computer science, iteration (along
with the related technique of recursion) is a standard element of
algorithms.
Barnsley Fern is
a fractal named after the British mathematician Michael Barnsley who first
described it in his book
Fractals Everywhere. He made it to resemble
the Black Spleenwort, Asplenium adiantum-nigrum.
Affine Transformation is a function between affine spaces which
preserves points, straight lines and planes. Also, sets of parallel lines
remain parallel after an affine transformation. An affine transformation
does not necessarily preserve angles between lines or distances between
points, though it does preserve ratios of distances between points lying
on a straight line. Examples of affine transformations include
translation, scaling, homothety, similarity transformation, reflection,
rotation, shear mapping, and compositions of them in any combination and
sequence.
Earth Fractals -
Fractal Jigsaw (youtube)
Sierpinski
Triangle is a
fractal and attractive fixed set with the overall shape
of an equilateral triangle, subdivided recursively into smaller
equilateral
triangles. Originally constructed as a curve, this is one of
the basic examples of self-similar sets, i.e., it is a mathematically
generated
pattern that can be reproducible at any magnification or
reduction. It is named after the Polish mathematician Wacław Sierpiński,
but appeared as a decorative pattern many centuries prior to the work of
Sierpiński.
Crystals -
Snowflakes -
Intelligent Design
-
Frame Rate
Conway's Game of Life is a cellular automaton devised by the British mathematician
John Horton Conway in 1970. The game is a zero-player game, meaning that its evolution is determined
by its initial state, requiring no further input. One interacts with the
Game of Life by creating an initial configuration and observing how it
evolves, or, for advanced players, by creating
patterns with particular properties.
Zero-player Game is a game that has no
sentient players.
Ulam-Warburton Automaton is a 2-dimensional
fractal
pattern that grows on a regular
grid
of cells consisting of squares. Starting with one square initially ON
and all others OFF, successive iterations are generated by turning ON all
squares that share precisely one edge with an ON square. This is the
von Neumann neighborhood. The automaton is named after the
Polish-American mathematician and scientist Stanislaw Ulam and the
Scottish engineer, inventor and amateur mathematician Mike Warburton.
Visualizations -
Mind Maps -
Wolfram -
Digital Physics -
Universal Computing
Cellular
Automaton consists of a regular
grid of
cells, each in one of a finite
number of states, such as on and off (in contrast to a coupled map
lattice). The grid can be in any finite number of dimensions. For each
cell, a set of cells called its neighborhood is defined relative to the
specified cell. An initial state (time t = 0) is selected by assigning a
state for each cell. A new generation is created (advancing t by 1),
according to some fixed rule (generally, a mathematical function) that
determines the new state of each cell in terms of the current state of the
cell and the states of the cells in its neighborhood. Typically, the rule
for updating the state of cells is the same for each cell and does not
change over time, and is applied to the whole grid simultaneously, though
exceptions are known, such as the stochastic
cellular automaton and
asynchronous cellular automaton.
Cell Division.
Replicator is a Life-like
cellular automaton where a cell survives or
is born if there are an odd number of neighbors. It is one of two
Life-like Fredkin replicator rules. Under this ruleset, every pattern
self-replicates; furthermore, every pattern will eventually produce an
arbitrary number of copies of itself, all arbitrarily far away from each
other.
Life-like Cellular Automaton. A cellular automaton (CA) is Life-like
(in the sense of being similar to Conway's Game of Life) if it meets the
following criteria: The array of cells of the automaton has two
dimensions. Each cell of the automaton has two states (conventionally
referred to as "alive" and "dead", or alternatively "on" and "off"). The
neighborhood of each cell is the Moore neighborhood; it consists of the
eight adjacent cells to the one under consideration and (possibly) the
cell itself. In each time step of the automaton, the new state of a cell
can be expressed as a function of the number of adjacent cells that are in
the alive state and of the cell's own state; that is, the rule is outer
totalistic (sometimes called semitotalistic).
Still Life is a pattern that does not change from one generation to
the next. The term comes from the art world where a still life painting or
photograph depicts an inanimate scene. In cellular automata, a still life
can be thought of as an oscillator with unit period.
Continuous Spatial Automaton have a continuum of locations, while the
state of a location still is any of a finite number of real numbers. Time
can also be continuous, and in this case the state evolves according to
differential equations.
Model of Computation is a model which describes how an output of a
mathematical function is computed given an input. A model describes how
units of computations, memories, and communications are organized. The
computational complexity of an algorithm can be measured given a model of
computation. Using a model allows studying the performance of algorithms
independently of the variations that are specific to particular
implementations and specific technology.
Coupled Map Lattice is a dynamical system that models the behavior of
non-linear systems (especially partial differential equations). They are
predominantly used to qualitatively study the chaotic dynamics of
spatially extended systems. This includes the dynamics of spatiotemporal
chaos where the number of effective degrees of freedom diverges as the
size of the system increases.
Power
of Two is a number of the form 2n where n is an integer, i.e. the
result of exponentiation with number two as the base and integer n as the
exponent. In a context where only integers are considered, n is restricted
to non-negative values, so we have 1, 2, and 2 multiplied by itself a
certain number of times. Because two is the base of the binary numeral
system, powers of two are common in computer science. Written in binary, a
power of two always has the form 100…000 or 0.00…001, just like a power of
ten in the decimal system.
Attractor is a set of numerical values toward which a system tends to
evolve, for a wide variety of starting conditions of the system. System
values that get close enough to the attractor values remain close even if
slightly disturbed. In finite-dimensional systems, the evolving variable
may be represented algebraically as an n-dimensional vector. The attractor
is a region in n-dimensional space. In physical systems, the n dimensions
may be, for example, two or three positional coordinates for each of one
or more physical entities; in economic systems, they may be separate
variables such as the inflation rate and the unemployment rate. If the
evolving variable is two- or three-dimensional, the attractor of the
dynamic process can be represented geometrically in two or three
dimensions, (as for example in the three-dimensional case depicted to the
right). An attractor can be a point, a finite set of points, a curve, a
manifold, or even a complicated set with a fractal structure known as a
strange attractor (see strange attractor below). If the variable is a
scalar, the attractor is a subset of the real number line. Describing the
attractors of chaotic dynamical systems has been one of the achievements
of chaos theory.
Scale
Invariance is a feature of objects or laws that do not
change if scales of length, energy, or other variables, are multiplied by
a common factor.
Scale Invariance
s a feature of objects or laws that do not change if
scales of length, energy, or other
variables, are multiplied by a common factor, thus represent a
universality. The technical term for this transformation is a dilatation
(also known as
Dilation),
and the dilatations can also form part of a larger conformal
symmetry.
Dilatation
is the state of being stretched beyond normal dimensions. The act of
expanding an aperture.
Mysterium Cosmographicum -
Johannes Kepler claimed to have had an epiphany on July 19, 1595. He
realized that regular polygons bound one inscribed and one circumscribed
circle at definite ratios, which, he reasoned, might be the geometrical
basis of the universe. After failing to find a unique arrangement of
polygons that fit known astronomical observations
(even with extra planets added to the system), Kepler began experimenting
with 3-dimensional polyhedra. He found that each of the five Platonic
solids could be uniquely inscribed and circumscribed by spherical orbs;
nesting these solids, each encased in a sphere, within one another would
produce six layers, corresponding to the six known planets—Mercury, Venus,
Earth, Mars, Jupiter, and Saturn. By ordering the solids
correctly—octahedron, icosahedron, dodecahedron, tetrahedron, cube—Kepler
found that the spheres could be placed at intervals corresponding (within
the accuracy limits of available astronomical observations) to the
relative sizes of each planet’s path, assuming the planets circle the Sun.
Kepler also found a formula relating the size of each planet’s orb to the
length of its orbital period: from inner to outer planets, the ratio of
increase in orbital period is twice the difference in orb radius. However,
Kepler later rejected this formula, because it was not precise enough.
Law of Squares (
order out of
chaos) -
Searl Effect
Chaos Game - Numberphile (youtube)
Number 9The sum of all digits 1 through 8=36 3+6=9
9 plus any digit returns the same digit 9+5=14 1+4=5
360
degrees in a circle 3+6+0=9
180 degrees in a circle 1+8+0=9
90
degrees in a circle 9+0=9
45 degrees in a circle 4+5=9
22.5 degrees
in a circle 2+2+5=9
The resulting angle always reduces to 9
Sum of
angles on polygons vectors communicate outward divergence. Nine reveals a
linear duality, it's both singularity and the vacuum. Nine models
everything and nothing simultaneously.
432 HZ.
0.999 is also written 0.9, among other ways, denotes the repeating
decimal consisting of
infinitely many 9s after the
decimal point (and one 0 before it). This repeating decimal represents the
smallest number no less than all decimal numbers 0.9, 0.99, 0.999, etc.
This number can be shown to equal 1. In other words, "0.999..." and "1" "0.999... = 1" represent the same number. There are many ways of showing this equality,
from intuitive arguments to mathematically rigorous proofs. The technique
used depends on target audience, background assumptions, historical
context, and preferred development of the real numbers, the system within
which 0.999... is commonly defined. (In other systems, 0.999... can have
the same meaning, a different definition, or be undefined.)
Earth has 92 different
atoms and is 92.96
million miles from the
Sun.
Nikola Tesla 3 6 9
(youtube)
Torus -
Vortex
Based Math (wiki) -
Peter cullinane
passing on {360* vortex maths divine symmetry} (youtube)
Number Circles or
Magic Circle is the arrangement of natural numbers on
circles where
the sum of the numbers on each circle and the sum of numbers on diameter
are identical. One of his magic circles was constructed from 33 natural
numbers from 1 to 33 arranged on four concentric circles, with 9 at the
center.
Modular Arithmetic is a system of arithmetic for integers, where
numbers "wrap around" upon reaching a certain value—the modulus (plural
moduli). A familiar use of modular arithmetic is in the
12-hour clock, in which the day
is divided into two 12-hour periods. If the time is 7:00 now, then 8 hours
later it will be 3:00. Usual addition would suggest that the later time
should be 7 + 8 = 15, but this is not the answer because clock time "
wraps
around" every 12 hours. Because the hour number starts over after
it reaches 12, this is arithmetic modulo 12. According to the definition
below, 12 is congruent not only to 12 itself, but also to 0, so the time
called "12:00" could also be called "0:00", since 12 is congruent to 0
modulo 12.
Constant
is
something continuing forever or for an
indefinitely long time. A number having an unchanging value. A number
representing a quantity assumed to have a fixed value in a specified
mathematical context. A quantity that does not vary.
Consistent -
Resilient.
Mathematical Constant is a special number that is "
significantly
interesting in some way". Constants arise in many areas of mathematics,
with constants such as e and π occurring in such diverse contexts as
geometry, number theory, and calculus. What it means for a constant to
arise "naturally", and what makes a constant "interesting", is ultimately
a matter of taste, and some mathematical constants are notable more for
historical reasons than for their intrinsic mathematical interest. The
more popular constants have been studied throughout the ages and
computed to many decimal places. All mathematical constants are definable
numbers and usually are also computable numbers (Chaitin's constant being
a significant exception).
Mathematical
Proof (theory)
"In the 1930's, mathematician,
Kurt Godel, established that there are statements which
cannot be proved true or untrue within
the axioms of a mathematical system. For a mathematical '
proof'
only has meaning within the
limited definitions, rules and conventions of the language of
mathematics.
So meaning cannot be found in numbers themselves, although
patterns of order amongst them obviously can and may imply
meanings."
The Primal Code (PDF)
Godels Incompleteness Theorem are two theorems of mathematical logic
that demonstrate the inherent limitations of every formal axiomatic system
containing basic arithmetic.
Axiomatic
system is any set of
axioms from
which some or all axioms can be used in conjunction to logically derive
theorems.
"Everything that can be counted
does not necessarily count; everything that counts cannot
necessarily be counted." (
Albert
Einstein 1879 - 1955, German-born
Theoretical Physicist)
Archimedes was a Greek mathematician, physicist, engineer,
inventor, and astronomer. (
287 – c. 212 BC)
Most of us never get to see the real mathematics because our
current math curriculum is more than 1,000 years old. For
example, the formula for solutions of
Quadratic Equations was in
Al-Khwarizmi's book published in 830, and Euclid laid the
foundations of
Euclidean Geometry around 300 BC. If the same time warp were
true in physics or biology, we wouldn't know about the solar
system, the atom or DNA.
Where did Math come from? When
did Math come into being?
We did not create math, we realized math when someone realized
thousands of years ago that there where
patterns
in life that can be
measured and
predicted using
numbers as
symbols that represent increments.
History of Mathematics (wiki)
Math is every where in nature and every where in human
life. Mathematics is more then a
language of measurement, math
is the ability to
encode and
decode information. 1-1=0, If you keep subtracting from what
you have you will eventually end up with nothing, which is the
path that most of us are on. We are blindly ignoring one of the
most constant things in the universe, which is math and our
ability to calculate
cause and effects.
Numerology
is any belief in the divine, mystical relationship between a number and
one or more coinciding events.
Sacred
Geometry ascribes symbolic and sacred meanings to certain
geometric shapes and certain geometric proportions.
19.47 Latitude
Finite Subdivision Rule is a recursive way of dividing a polygon or
other two-dimensional shape into smaller and smaller pieces. Subdivision
rules in a sense are generalizations of fractals. Instead of repeating
exactly the same design over and over, they have slight variations in each
stage, allowing a richer structure while maintaining the elegant style of
fractals. Subdivision rules have been used in architecture, biology, and
computer science, as well as in the study of hyperbolic manifolds.
Substitution tilings are a well-studied type of subdivision rule.
Geometric Progression is a sequence of numbers where each term after
the first is found by multiplying the previous one by a fixed, non-zero
number called the common ratio. For example, the sequence 2, 6, 18, 54,
... is a geometric progression with common ratio 3. Similarly 10, 5, 2.5,
1.25, ... is a geometric sequence with common ratio 1/2.
Crystallization -
Ice.
E8 is any of several closely related exceptional simple Lie groups,
linear algebraic groups or Lie algebras of
dimension 248; the same
notation is used for the corresponding root
Lattice, which has rank 8.
Lie Group is a group that is also a differentiable
manifold, with
the property that the group operations are compatible with the smooth structure.
LI Patterns Depicted in Ancient Cultures
-
Patterns in Nature
Lichtenberg Figure
are branching electric discharges that sometimes appear on the surface or
in the interior of insulating materials. Lichtenberg figures are often
associated with the progressive deterioration of high voltage components
and equipment. The study of planar Lichtenberg figures along insulating
surfaces and 3D electrical trees within insulating materials often
provides engineers with valuable insights for improving the long-term
reliability of high voltage equipment. Lichtenberg figures are now known
to occur on or within solids, liquids, and gases during electrical
breakdown.
Lichtenberg.
Brownian Tree
are mathematical models of dendritic structures associated with the
physical process known as diffusion-limited aggregation. A Brownian tree
is built with these steps: first, a "seed" is placed somewhere on the
screen. Then, a particle is placed in a random position of the screen, and
moved randomly until it bumps against the seed. The particle is left
there, and another particle is placed in a random position and moved until
it bumps against the seed or any previous particle, and so on.
Triskelion is a
motif consisting of a triple spiral exhibiting rotational symmetry. The
spiral design can be based on interlocking Archimedean spirals, or
represent three bent human legs.
Cymatics is when patterns emerge in the excitatory medium
depending on the
geometry of the plate and the driving
frequency. -
Frequencies (HZ) -
Sound Shapes.
Gematria assigns numerical value to a word/name/phrase in
the belief that words or phrases with identical numerical values bear some
relation to each other or bear some relation to the number itself as it
may apply to Nature, a person's age, the calendar year, or the like.
Math is the hidden secret to understanding the world: Roger Antonsen
(video and interactive text)
Feynman Diagram
are pictorial representations of the mathematical expressions describing
the behavior of
subatomic particles.
Virtual Particle.
Gauge Theory is a type of field theory in which the Lagrangian is
invariant under a continuous group of local transformations.
Lorentz Covariance is "the feature of nature that says experimental
results are independent of the orientation or the boost velocity of the
laboratory through space". In everyday language, it means that the laws
of physics stay the same for all observers that are moving with respect to
one another with a uniform velocity.
Julia Set are two complementary sets (Julia 'laces' and
Fatou 'dusts') defined from a function. Informally, the Fatou set of the
function consists of values with the property that all nearby values
behave similarly under repeated iteration of the function, and the Julia
set consists of values such that an arbitrarily small perturbation can
cause drastic changes in the sequence of iterated function values. Thus
the behavior of the function on the Fatou set is 'regular', while on the
Julia set its behavior is 'chaotic'.