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failing calculation of a symbolic integral #11238
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comment:1
This is also present in the latest Maxima. This is now reported at this Maxima bug artifact.
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Upstream: Reported upstream. Little or no feedback. |
Changed upstream from Reported upstream. Little or no feedback. to Fixed upstream, in a later stable release. |
comment:2
This is NOT fixed in 5.24, so we can't yet do it, but it is now fixed in Maxima 5.26.
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Add a doctest for the non-zero result. |
comment:3
Attachment: sage-trac_11238.patch.gz Here's another one I found fixed by the Maxima upgrade. The patch will apply cleanly on top of #11445. I put the test in the same place as that one, but I could of course copy/paste them out together. |
Author: Michael Orlitzky |
Dependencies: #11445 |
comment:4
Looks good. No worries about the cut/paste. However, let's try to put others in the symbolic integration ones... Maybe we should even separate some of them out into one of our "tests" files in calculus/ or something. |
Reviewer: Karl-Dieter Crisman |
Merged: sage-5.0.beta12 |
comment:6
This seems to be back with maxima-5.27.0, but only with
Reported upstream at https://sourceforge.net/tracker/?func=detail&aid=3529144&group_id=4933&atid=104933. |
comment:7
thank you Michael, the new doctest will bump when/if we upgrade to Maxima 5.27. Paul |
comment:8
This is fixed upstream, again. It should make it into maxima-5.28. |
comment:9
I won't reopen this one, but it is definitely still there - to the point that I don't see how we can be passing doctests!
See #17469. Weirdly, the doctest does pass, but we had to change things at some point, which is a regression on Maxima's part:
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comment:10
with 6.0 both work but take a long time:
Paul |
With a symbolic calculation, Sage returns 0
for the integral integrate(exp(-x)*sinh(sqrt(x)), x, 0, oo)
instead of
exp(1/4) * sqrt(pi) / 2
Depends on #11445
Upstream: Fixed upstream, in a later stable release.
CC: @zimmermann6 @kcrisman
Component: calculus
Keywords: integrate
Author: Michael Orlitzky
Reviewer: Karl-Dieter Crisman
Merged: sage-5.0.beta12
Issue created by migration from https://trac.sagemath.org/ticket/11238
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