Hey guys, what's wront with this integral?
sage: integral(x^3/(e^x-1),x,0,oo)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "_sage_input_5.py", line 5, in <module>
integral(f,x,_sage_const_0 ,oo)
File "", line 1, in <module>
File
"/home/oscar/sage-4.3/local/lib/python2.6/site-packages/sage/misc/functional.py",
line 687, in integral
return x.integral(*args, **kwds)
File "expression.pyx", line 6495, in
sage.symbolic.expression.Expression.integral
(sage/symbolic/expression.cpp:25927)
File
"/home/oscar/sage-4.3/local/lib/python2.6/site-packages/sage/calculus/calculus.py",
line 873, in integral
return SR(result)
File "parent.pyx", line 538, in sage.structure.parent.Parent.__call__
(sage/structure/parent.c:4956)
File "coerce_maps.pyx", line 156, in
sage.structure.coerce_maps.NamedConvertMap._call_
(sage/structure/coerce_maps.c:4098)
File
"/home/oscar/sage-4.3/local/lib/python2.6/site-packages/sage/interfaces/maxima.py",
line 1758, in _symbolic_
return R(self._sage_())
File
"/home/oscar/sage-4.3/local/lib/python2.6/site-packages/sage/interfaces/maxima.py",
line 1739, in _sage_
return symbolic_expression_from_maxima_string(repr(self))
File
"/home/oscar/sage-4.3/local/lib/python2.6/site-packages/sage/calculus/calculus.py",
line 1937, in symbolic_expression_from_maxima_string
raise TypeError, "unable to make sense of Maxima expression '%s' in
Sage"%s
TypeError: unable to make sense of Maxima expression
'limit(6*li[4](e^x)-6*x*polylog3(e^x)+3*x^2*polylog2(e^x)+x^3*log(1-e^x)-x^4/4,x,inf)-pi^4/15'
in Sage
it's an important integral in quantum mechanics, and very difficult for
me to solve.
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