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 | 1 | initial version |  |
Looks like a bug indeed. You may use instead
sage: u=integrate(x**3/(exp(x)-1),(x,0,oo),algorithm='giac');u
1/15*pi^4| | 1 | initial version | |
Looks like a bug indeed. You may use instead
sage: u=integrate(x**3/(exp(x)-1),(x,0,oo),algorithm='giac');u
1/15*pi^4
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