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Function (mathematics)

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

The above definition of "a function from X to Y" is ... With one definition saying the function defined by f(x) = x<sup>2</sup> ...

Definition of Function - Math is Fun

www.mathsisfun.com/definitions/function.html

A function is a special relationship where each input has a single output. It is often written as "f(x)" where x is the input value. Example: f(x) = x/2 ("f of x is x ...

Function definition - Math Insight

mathinsight.org/definition/function

A technical definition of a function is: a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output. This means that ...

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

www.khanacademy.org/math/algebra/algebra-functions/intro-to-functions/v/what-is-a-function

Functions assign a single unique output for each of their inputs. ... Math by subject .... This was kind of an interesting way to define a function, a way to kind of ...

Function - math word definition - Math Open Reference

www.mathopenref.com/function.html

Functions - how they transform one value into another in a defined way.

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 ...

Definition of Function | Define Function - Algebra 1 - Free Math ...

www.icoachmath.com/math_dictionary/function.html

Function is a relation in which each element of the domain....complete information about the function, definition of an function, examples of an function, step by ...

Relations and Functions - Regents Exam Prep Center

www.regentsprep.org/regents/math/algtrig/atp5/lfunction.htm

Relations and Functions. ... Definition of a Relation ... Function: A function is a set of ordered pairs in which each x-element has only ONE y-element associated ...

Definition of Inverse Function - Regents Exam Prep Center

www.regentsprep.org/Regents/math/algtrig/ATP8/inverselesson.htm

A function and its inverse function can be described as the "DO" and the "UNDO" functions. A function takes a starting value, performs some operation on this ...

What is a function rule in mathematics? | Reference.com

www.reference.com/math/function-rule-mathematics-55fcb260037f06a1

A function is a relationship in math between two variables, often x and y, and for every value of x there is exactly ... What is the definition of "plane trigonometry"?

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

tutorial.math.lamar.edu

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 ...

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

www.khanacademy.org

Functions assign a single unique output for each of their inputs. In this video, Sal ... If you're seeing this message, it means we're having trouble loading external resources for Khan Academy. If you're behind a web ... Subjects. Math by subject.

Function -- from Wolfram MathWorld

mathworld.wolfram.com

of values at which a function is defined is called its domain, while the set f(A) ... Ch. 27 in Handbook of Mathematical Functions with Formulas, Graphs, and ...