indicator function

noun

A function which is equal to 1 for all points in its domain which belong to a given set, and is equal to 0 for all points in the domain which do not belong to that given set.

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Meanings

nounindicator function (plural indicator functions)

plural indicator functions

  1. A function which is equal to 1 for all points in its domain which belong to a given set, and is equal to 0 for all points in the domain which do not belong to that given set.

Synonyms & antonyms

Also see
characteristic function

Translations

Bulgarian характеристична функция, индикаторна функция
  • характеристична функция (harakteristična funkcija)function equal to 1 on elements of a given set
  • индикаторна функция (indikatorna funkcija)function equal to 1 on elements of a given set
Finnish indikaattorifunktio
  • indikaattorifunktiofunction equal to 1 on elements of a given set
Polish indykator, funkcja charakterystyczna zbioru
  • indykatorfunction equal to 1 on elements of a given set
  • funkcja charakterystyczna zbiorufunction equal to 1 on elements of a given set
  • funkcja wskaźnikowafunction equal to 1 on elements of a given set
Cite this entry
APA

indicator function. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/indicator%20function

MLA

“indicator function.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/indicator%20function. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “indicator function,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/indicator%20function.

Source: indicator function on Wiktionary, CC BY-SA 4.0.