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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.



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


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


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.

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 ...

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


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 ...

Functions, graphs, sequences & series - Maths Tutor


What are functions ? From an introduction of the basic concepts of functions to more advanced functions met in economics, engineering and the sciences, these  ...

Mathematical Functions (Transact-SQL) - MSDN - Microsoft


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

PHP: Math Functions - Manual


I was looking for a truncate function. Not finding one, I wrote my own. Since it deals with everything as a number, I imagine it's faster than the alternative of using ...

GNU Scientific Library – Reference Manual: Mathematical Functions


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

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What is a Function - Math is Fun


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


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? | Introduction to functions | Khan Academy


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.