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 : X → Y.

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



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Word of the Day

19 January 2025

ELOQUENCE

(noun) powerful and effective language; “his eloquence attracted a large congregation”; “fluency in spoken and written English is essential”; “his oily smoothness concealed his guilt from the police”


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Coffee Trivia

Decaffeinated coffee is not caffeine-free. Studies from the National Institute of Health (US) have shown that virtually all decaf coffee types contain caffeine. A 236-ml (8-oz) cup of decaf coffee contains up to 7 mg of caffeine, whereas a regular cup provided 70-140 mg.

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