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 …

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A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one …

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JavaScript functions are defined with the function keyword. You can use a function declaration or a function expression.

Function definition: the kind of action or activity proper to a person, thing, or institution; the purpose for which something is designed or exists; role.. See examples of FUNCTION used in …

Domain, Range and Codomain In its simplest form the domain is all the values that go into a function, and the range is all the values that come out. But in fact they are very important in …

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We can create functions that behave differently based on the input (x) value. A function made up of 3 pieces. when x is less than 2, it gives x2,.