Psi function

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Psi function can refer, in mathematics, to

the ordinal collapsing function $\psi (\alpha )$
the Dedekind psi function $\psi (n)$
the Chebyshev function $\psi (x)$
the polygamma function $\psi ^{m}(z)$ $\psi ^{m}(z)$ or its special cases
- the digamma function $\psi (z)$
- the trigamma function $\psi ^{1}(z)$

and in physics to

the quantum mechanical wave function.

This disambiguation page lists mathematics articles associated with the same title.
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