About 20,600,000 results
Open links in new tab
  1. What is a Function - Math is Fun

    What is a Function? 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.

  2. Function in Maths - GeeksforGeeks

    4 days ago · Learn about various types of functions based on their mapping, algebraic nature, and special behaviors like periodicity or symmetry. Based on Mapping Properties

  3. Function (mathematics) - Wikipedia

    In several areas of mathematics, the term "function" refers to partial functions rather than to ordinary (total) functions. This is typically the case when functions may be specified in a way that makes …

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

    Dec 1, 2025 · Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable). Functions are …

  5. Functions | Algebra 1 | Math | Khan Academy

    About this unit 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 …

  6. What Are Functions in Math?- Cuemath

    Function in math is a relation f from a set A (the domain of the function) to another set B (the co-domain of the function). Explore with concept, definition, types, and examples.

  7. Basics of functions - Student Academic Success

    A solid understanding of the basics of functions, including the definition of a function, its notation, domain and range, and inverse function s, is essential for success in more advanced mathematical …

  8. 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 function notation and …

  9. 3.1 What Are Functions? - MIT Mathematics

    The simplest definition is: a function is a bunch of ordered pairs of things (in our case the things will be numbers, but they can be otherwise), with the property that the first members of the pairs are all …

  10. Functions | Brilliant Math & Science Wiki

    5 days ago · Mathematically, a function is defined as a map that associates each element in the domain (an argument of the function) with exactly one element in the codomain.