DLMF:4.40.E9 (Q1981)

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Language	Label	Description	Also known as
English	DLMF:4.40.E9	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle\int_{-\infty}^{\infty}\frac{e^{ax}}{\left(\cosh% \left(\tfrac{1}{2}x\right)\right)^{2}}\mathrm{d}x=\frac{4\pi a}{\sin\left(\pi a% \right)},}}

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DLMF:4.40.E9

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{\displaystyle{\displaystyle-1<a<1}}

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the ratio of the circumference of a circle to its diameter

Defining formula

{\displaystyle{\displaystyle\pi}}

C3.S12.E1.m2abdec

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Defining formula

{\displaystyle{\displaystyle\mathrm{d}\NVar{x}}}

C1.S4.SS4.m1ahdec

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Sitelinks

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