identity function
Sign in to saveAlso known as identity map, identity transformation, identity operator, id, identity relation
function that always returns the same value that was used as its argument
In the Vinony graph
Vinony's link graph records 366 inbound references to identity function, and connects out to function, complex analysis and morphism.
It is catalogued under topics including 1 (number), Basic concepts in set theory and Elementary mathematics.
Vinony links it to 43 Wikipedia language editions.
Wikidata facts
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- TeX string
- \operatorname{id}
Sources (3)
via Wikidata · CC0
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Encyclopedic overview
Graph of the identity function on the real numbers
In mathematics, an identity function, also called an identity relation, identity map or identity transformation, is a function that always returns the value that was used as its argument, unchanged. That is, when
Excerpted from Wikipedia’s “identity function” article, available under the CC BY-SA 4.0 licence.