identity function

Noun

 * 1)  A function whose value is always the same as its independent variable, and for which the codomain equals the domain.

Hypernyms

 * inclusion function

Translations

 * Catalan: funció identitat
 * Chinese:
 * Mandarin:
 * Dutch:
 * Finnish: identiteettifunktio
 * Hebrew: פונקצית זהות
 * Hungarian:
 * Icelandic:
 * Romanian:
 * Russian: тожде́ственное отображе́ние
 * Vietnamese: đồng nhất thức