Pi function: Difference between revisions

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In [[mathematics]], threeat least four different [[function (mathematics)|functions]] are known as the '''pi''' or '''Pi''' function:

* <math>\pi(x)\,\!</math> ('''pi function''') &ndash; the [[prime-counting function]]

* <math>\Pi(x)\,\!</math> ('''Pi function''') &ndash; the [[Gamma function#Pi function|gamma function]] when offset to coincide with the [[factorial]]

* [[Rectangular function]]

* <math>\pi(n)\,\!</math> &ndash; the [[Pisano period]]

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