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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 codomain of the …

  2. What is a Function - Math is Fun

    A function relates an input to an output. It is like a machine that has an input and an output. And the output is related somehow to the input.

  3. 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.

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

    Jun 14, 2024 · A function is a relation for which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of second components of the ordered …

  5. Functions | Algebra 1 | Math | Khan Academy

    A function is like a machine that takes an input and gives an output. Let's explore how we can graph, analyze, and create different types of functions. Unit guides are here! Power up your classroom with …

  6. Introduction to Function - GeeksforGeeks

    Apr 27, 2026 · A function is a special type of relation that assigns each element of a set A to exactly one element of a set B. Here, set A is called the domain, and set B is called the codomain. A function is …

  7. Function - definition of function by The Free Dictionary

    Define function. function synonyms, function pronunciation, function translation, English dictionary definition of function. n. 1. The action or purpose for which a person or thing is suited or employed, …

  8. 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.

  9. Function - Math.net

    Function A function is a relation between two sets in which each member of the first set is paired with one, and only one, member of the second set. A function rule is a rule that explains the relationship …

  10. 3.1 What Are Functions? - MIT Mathematics

    This function consists of three pairs, whose first members are 1, 2 1,2 and 3 3. It is customary to give functions names, like f, g f,g or h h, and if we call this function f f, we generally use the following …