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Algebraist (talk | contribs) m move probability example up, since I think it and indicator function are the most common meanings |
m also see cf in probabability theory |
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* The [[characteristic function (convex analysis)]] in convex analysis:
::<math>\chi_{A} (x) := \begin{cases} 0, & x \in A; \\ + \infty, & x \not \in A. \end{cases}</math>
* The [[characteristic function (probability theory)|characteristic function]] in probability theory.
* The [[characteristic state function]] in statistical mechanics.
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