DLMF:5.15.E4 (Q2173)

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No description defined

Language	Label	Description	Also known as
English	DLMF:5.15.E4	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle\psi'\left(n-\tfrac{1}{2}\right)=\tfrac{1}{2}\pi^{% 2}-4\sum_{k=1}^{n-1}\frac{1}{(2k-1)^{2}},}}

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DLMF:5.15.E4

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the ratio of the circumference of a circle to its diameter

Defining formula

{\displaystyle{\displaystyle\pi}}

C3.S12.E1.m2adec

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psi (or digamma) function

Defining formula

{\displaystyle{\displaystyle\psi\left(\NVar{z}\right)}}

C5.S2.E2.m2aadec

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Defining formula

{\displaystyle{\displaystyle n}}

C5.S1.XMD3.m1bdec

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Defining formula

{\displaystyle{\displaystyle k}}

C5.S1.XMD4.m1adec

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Sitelinks

Wikipedia(0 entries)

DRMF related sites(0 entries)

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