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import sympy
sympy.init_printing(use_unicode=False, wrap_line=False)
x = sympy.Symbol('x')
sympy.integrate(x**2 * 1/(sympy.exp(x)-1),(x,0,sympy.oo))
returns the unevaluated integral.
I tried to look into the documentation and code where one might add this to sympy, but I wasn't able to find an easy fix that was doable by me (also I am no expert in integration algorithms).
Sympy 1.12 cannot currently solve the definite integral
which is a representation of the Riemann Zeta function (https://en.wikipedia.org/wiki/Riemann_zeta_function)
Instead, for example the code
returns the unevaluated integral.
I tried to look into the documentation and code where one might add this to sympy, but I wasn't able to find an easy fix that was doable by me (also I am no expert in integration algorithms).
This issues was also raised in #24431 and #8169 and #23326
Maybe it can be solved by adding the integral representations of the Zeta functions?
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