Abstract
We present an approach to compute by changing variables in the double integral using hyperbolic trigonometric functions. We also apply this approach to present , when , as a definite improper integral of a single variable.
Citation
Joseph D’Avanzo. Nikolai Krylov. "$\zeta(n)$ via hyperbolic functions." Involve 3 (3) 289 - 296, 2010. https://doi.org/10.2140/involve.2010.3.289
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