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Restricted Domain

Restricted Domain

The use of a domain for a function that is smaller than the function's domain of definition. Note: Restricted domains are commonly used to specify a one-to-one section of a function.

 

Graph of f(x) = x², x ≥ 0, showing a parabola starting at origin curving upward right, illustrating a restricted domain on [0, ∞).

 

See also

Restricted function