Board index Computation of Series Closed series involving tanh

Closed series involving tanh

Post your questions related to Computation of Series here.

Moderators: galactus, sos440, zaidalyafey

Closed series involving tanh

Thu May 19, 2016 8:45 am

Posts: 48

Evaluate (in a closed form, if possible) the series:

$$\sum_{n=1}^{\infty} \frac{(-1)^{n-1}}{n \tanh n}$$