characteristic function

noun — 2 senses

characteristic function

noun
1

Mathematical analysis, Mathematics, Sciences 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.

2

Mathematics, Probability theory, Sciences A complex function completely defining the probability distribution of a real-valued random variable

Synonyms
indicator function
Related terms
subset classifier
Hypernyms
function
Hyponyms
point characteristic function

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.