#6465: Derivative D acts wrongly on symbolic integration
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Reporter: gmhossain | Owner:
Type: defect | Status: needs_work
Priority: critical | Milestone: sage-4.3.1
Component: symbolics | Keywords:
Work_issues: | Author: Burcin Erocal, Golam Mortuza Hossain
Upstream: N/A | Reviewer: Tim Dumol
Merged: |
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Comment(by kcrisman):
> The problem with `gamma_incomplete` might be related to/fixed by #7748.
Yes, I think so, as Maxima 5.20.1 now returns this for both
integrate(exp(-x),x,1,inf) and integrate(1/%e^x,x,1,inf). Note that
{{{
sage: gamma_inc(1,1)
0.367...
}}}
rather than 1/e at this point, so it really is the symbolic piece, not
just having translation from Maxima, that would be important.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6465#comment:8>
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