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Function (mathematics)

en.wikipedia.org/wiki/Function_(mathematics)

In mathematics, a function 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.

MATHEMATICAL FUNCTIONS - THE ... - Wolfram Research

functions.wolfram.com/

The world's largest collection of formulas and graphics about more than 300000 mathematical functions for the mathematics and science communities.

NIST Digital Library of Mathematical Functions

dlmf.nist.gov/

Result of a project to provide a modern revision of Abramowitz and Stegun's " Handbook of Mathematical Functions". The site includes definitions, properties, and ...

What is a function? | Functions & function notation | Khan Academy

www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-functions-and-function-notation/v/what-is-a-function

Functions assign a single unique output for each of their inputs. In this video, Sal gives many examples of various kinds of functions. ... Subjects. Math by subject.

Algebra Lessons at Cool math .com - Functions

www.coolmath.com/algebra/15-functions

Algebra functions lessons with lots of worked examples and practice problems. Very easy to understand!Prealgebra exponent lessons, examples and practice ...

Algebra - The Definition of a Function - Pauls Online Math Notes

tutorial.math.lamar.edu/Classes/Alg/FunctionDefn.aspx

This seems like an odd definition but we'll need it for the definition of a function ( which is the main topic of this section). However, before we actually give the ...

Mathematical function - definition of mathematical function by The ...

www.thefreedictionary.com/mathematical function

Noun, 1. mathematical function - (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an ...

Functions versus Relations - Purplemath

www.purplemath.com/modules/fcns.htm

Discusses the concept of functions versus relations, and demonstrates ways of telling ... There are different ways of looking at functions. .... ACCUPLACER Math

GNU Scientific Library – Reference Manual: Mathematical Functions

www.gnu.org/s/gsl/manual/html_node/Mathematical-Functions.html

This chapter describes basic mathematical functions. Some of these functions are present in system libraries, but the alternative versions given here can be used ...

Mathematical Functions (Transact-SQL) - MSDN - Microsoft

msdn.microsoft.com/en-us/library/ms177516.aspx

Date and Time Data Types and Functions (Transact-SQL) ... All mathematical functions, except for RAND, are deterministic functions. This means they return the ...

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What is a Function - Math is Fun

www.mathsisfun.com

Input, Relationship, Output. We will see many ways to think about functions, but there are always three main parts: The input; The relationship; The output ...

Functions | Algebra I | Khan Academy

www.khanacademy.org

Learn how to find the value of a function for a given input value. Evaluating ... How to evaluate an expression that contains function notation (example) · Evaluate ...

What is a function? | Introduction to functions | Khan Academy

www.khanacademy.org

Functions assign a single unique output for each of their inputs. In this video, Sal gives many examples of various kinds of functions. ... Subjects. Math by subject.