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Function (mathematics) - Wikipedia


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: DLMF


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

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 ...

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 ...

High School: Functions » Introduction | Common Core State ...


In school mathematics, functions usually have numerical inputs and outputs and are often defined by an algebraic expression. For example, the time in hours it ...

PostgreSQL: Documentation: 9.5: Mathematical Functions and ...


Mathematical Functions and Operators. Mathematical operators are provided for many PostgreSQL types. For types without standard mathematical conventions ...

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 ...

9.2. math — Mathematical functions — Python 2.7.12 documentation


It provides access to the mathematical functions defined by the C standard. These functions ... The following functions are provided by this module. Except when ...

Mathematical functions — NumPy v1.10 Manual


i0(x), Modified Bessel function of the first kind, order 0. ... Mathematical functions. Trigonometric functions; Hyperbolic functions; Rounding; Sums, products, ...

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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.

What is a function? (video) | Khan Academy


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

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 ...