Formula q_344 (Q242)

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Language	Label	Description	Also known as
English	Formula q_344	No description defined

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arqmath formula id

q_344

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Defining formula

e^{\pi }={\frac {\sinh \pi }{\pi }}+{\frac {2\sinh \pi }{\pi }}\sum _{n\geq 1}{\frac {(-1)^{n}}{n^{2}+1}}(\cos n\pi -n\sin n\pi )

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