- #1

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I have a problem with the following integral:

Integral 1/sinh^2(x/2) from -inf to +inf =-2 coth(x/2)

must I consider it as a principal value integral???

Thank you

- Thread starter Belgium 12
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- #1

- 43

- 0

I have a problem with the following integral:

Integral 1/sinh^2(x/2) from -inf to +inf =-2 coth(x/2)

must I consider it as a principal value integral???

Thank you

- #2

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If you're integrating wrt x, you can't have x in the RHS.

- #3

pwsnafu

Science Advisor

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Just to be clear, are you trying to evaluateIntegral 1/sinh^2(x/2) from -inf to +inf =-2 coth(x/2)

##\int_{-\infty}^{\infty} \frac{1}{\sinh ^2(x/2)} \, dx##

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