At the top we said that a function was like a machine. But a function doesn't really have belts or cogs or any moving parts, and it doesn't actually destroy what we put into it!

Functions were originally the idealization of how a varying quantity depends on another quantity. For example, the position of a planet is a function of time.

Sep 29, 2025 · Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent …

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.

Oct 6, 2025 · We can define a function in mathematics as a machine that takes some input and gives a unique output.

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! …

6 days ago · Definition: Function A function is a relation in which each possible input value corresponds to exactly one output value. We say “the output is a function of the input.” The set …