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What Is Domain In Math

Illustration

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Basic definitions

In analysis, the domain of a function is the set of values for which a function is defined.
In topology, a domain is a connected, open set.

Detailed definition

The term domain has (at least) three different meanings in mathematics.
The term domain is most commonly used to describe the set of values D for which a function (map, transformation, etc.) is defined. For example, a function f(x) that is defined for real values x element R has domain R, and is sometimes said to be

Educational grade level

high school level (California Algebra I standard)

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