IDENTITYFUNCTION

Identity function

In mathematics, an identity function, also called an identity relation or identity map or identity transformation, is a function that always returns the same value that was used as its argument. In terms of equations, the function is given by f = x.

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identity function

Noun

  1. A function whose value is always the same as its independent variable


The above text is a snippet from Wiktionary: identity function
and as such is available under the Creative Commons Attribution/Share-Alike License.

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