#11591: Incorrect results for integrals involving exponential functions
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Reporter: mjo | Owner: burcin
Type: defect | Status: new
Priority: major | Milestone:
Component: calculus | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Posted to sage-support by Robin Hankin,
http://groups.google.com/group/sage-
support/browse_thread/thread/1209ff5cb106d99c
Actual result:
{{{
sage: f = (x^2)*exp(x) / (1+exp(x))^2
sage: integrate(f, (x, -infinity, infinity))
0
}}}
Expected result:
{{{
sage: from mpmath import *
sage: mp.pretty=True
sage: quad(lambda x:(x^2)*exp(x)/(1+exp(x))^2,[-inf,+inf])
3.28986813369645
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11591>
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