Meanings
nounceiling function (plural ceiling functions)
plural ceiling functions
- mathematicsA function that maps a real number to the smallest integer that is no smaller than it.
Synonyms: ceil function
Synonyms & antonyms
nounA function that maps a real number to the smallest integer that is no smaller than it.
Similar
Opposite
Also see
Cite this entry
APA
ceiling function. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/ceiling%20function
MLA
“ceiling function.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ceiling%20function. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “ceiling function,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/ceiling%20function.
Source: ceiling function on Wiktionary, CC BY-SA 4.0.