CODOMAIN

Etymology

Noun

codomain (plural codomains)

(mathematics, analysis) The target set into which a function is formally defined to map elements of its domain; the set denoted Y in the notation f : XY.

Usage notes

The codomain always contains the image of the function (the actual set of points to which points of the domain are mapped), and can be larger if the function is not surjective.

The term range is often synonymous with codomain, but can also be used as a synonym for image.

Synonyms

• (target set of a function): range

Antonyms

• (target set of a function): domain

Anagrams

• monoacid

Source: Wiktionary



RESET




Word of the Day

26 June 2025

DISPIRITEDLY

(adverb) in a dispirited manner without hope; “the first Mozartian opera to be subjected to this curious treatment ran dispiritedly for five performances”


coffee icon

Coffee Trivia

In 1884, Angelo Moriondo of Turin, Italy, demonstrated the first working example of an espresso machine.

coffee icon