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Concept information

set theory > identity function
mathematical analysis > function > elementary function > algebraic function > identity function
mathematical analysis > real analysis > real-valued function > algebraic function > identity function

Terme préférentiel

identity function  

Définition

  • 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 f is the identity function, the equality f(X) = X is true for all values of X to which f can be applied.
    (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Identity_function)

Concept générique

Synonyme(s)

  • identity map
  • identity relation
  • identity transformation

Traductions

URI

http://data.loterre.fr/ark:/67375/PSR-WWSM7CVR-6

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RDF/XML TURTLE JSON-LD Dernière modification le 21/08/2023