DLMF:4.19.E9 (Q1688)

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Language	Label	Description	Also known as
English	DLMF:4.19.E9	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle\ln\left(\frac{\tan z}{z}\right)=\sum_{n=1}^{% \infty}\frac{(-1)^{n-1}2^{2n}(2^{2n-1}-1)B_{2n}}{n(2n)!}z^{2n},}}

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DLMF:4.19.E9

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{\displaystyle{\displaystyle|z|<\frac{1}{2}\pi}}

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Defining formula

{\displaystyle{\displaystyle B_{\NVar{n}}}}

C24.S2.SS1.m1aedec

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the ratio of the circumference of a circle to its diameter

Defining formula

{\displaystyle{\displaystyle\pi}}

C3.S12.E1.m2afdec

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Defining formula

{\displaystyle{\displaystyle!}}

introduction.Sx4.p1.t1.r15.m5ahdec

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