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  1. Function (mathematics) - Wikipedia

    In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. [1] The set X is called the domain of the function [2] and the set Y is called the …

  2. FUNCTION Definition & Meaning - Merriam-Webster

    The meaning of FUNCTION is professional or official position : occupation. How to use function in a sentence. Synonym Discussion of Function.

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

    Jun 14, 2024 · In this section we will formally define relations and functions. We also give a “working definition” of a function to help understand just what a function is. We introduce …

  4. JavaScript Functions - W3Schools.com

    JavaScript Function Syntax A JavaScript function is defined with the function keyword, followed by a name, followed by parentheses (). Function names can contain letters, digits, underscores, …

  5. Function | Definition, Types, Examples, & Facts | Britannica

    Jul 11, 2025 · Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent …

  6. Khan Academy

    Khan Academy ... Khan Academy

  7. Function: Definition, types of functions, and applications!

    What is a function? functions is defined as a set of rules that associates input values with output values. Find out everything you need to know about functions

  8. What Are Functions in Math?- Cuemath

    Functions define the relationship between two variables, one is dependent and the other is independent. Function in math is a relation f from a set A (the domain of the function) to …

  9. 3.1 What Are Functions? - MIT Mathematics

    3.1 What Are Functions? Functions are what we use to describe things we want to talk about mathematically. I find, though, that I get a bit tongue tied when I try to define them. The …

  10. FUNCTION | English meaning - Cambridge Dictionary

    FUNCTION definition: 1. the natural purpose (of something) or the duty (of a person): 2. an official ceremony or a…. Learn more.

  11. Function Definition (Illustrated Mathematics Dictionary)

    Illustrated definition of Function: A special relationship where each input has a single output. It is often written as f (x) where x is the input...