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Function (mathematics) - Wikipedia

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 functions site

functions.wolfram.com/

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

What is a Function - Math is Fun

www.mathsisfun.com/sets/function.html

But we are not going to look at specific functions ... ... instead we will look at the general idea of a function. Names. First, it is useful to give a function a name.

Functions | Algebra I | Khan Academy

www.khanacademy.org/math/algebra/algebra-functions

Functions are mathematical entities that assign unique outputs to given inputs. Sounds simple? Think again! In this topic you will evaluate, graph, analyze, and ...

What is a function? | Evaluating functions | Functions | Algebra I ...

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

Functions assign a single unique output for each of their inputs. In this video, we see examples of various kinds of functions.

DLMF: 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 ...

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 ...

Mathematical functions - Adobe Support

helpx.adobe.com/coldfusion/cfml-reference/coldfusion-functions/functions-by-category/mathematical-functions.html

Mathematical functions. Search. Search. Applies to: ColdFusion. Function, Description ... Pi, Gets the mathematical constant pi, accurate to 15 digits.

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 ...