#13973: Upgrade Maxima past the release 5.29.1
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Reporter: dimpase | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-6.3
Component: packages: standard | Resolution:
Keywords: sd48 | Merged in:
Authors: Jeroen Demeyer | Reviewers:
Report Upstream: Reported upstream. Developers | Work issues:
acknowledge bug. | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by dimpase):
Replying to [comment:32 pbruin]:
> The problematic doctest is the following one from
`sage/misc/functional.py`:
> {{{
> sage: f = exp(-x) * sinh(sqrt(x))
> sage: t = integrate(f, x, 0, Infinity)
> }}}
> With an unpatched Sage 6.2 this does finish, but takes a very long time
(2-3 minutes). The same situation occurs for
> {{{
> sage: maxima('integrate(exp(-x)*sinh(sqrt(x)), x, 0, inf);')
> }}}
>
> This is surprising given that the following takes less than a second in
Maxima (both the one that comes with Sage and a standalone copy, and both
versions 5.29.1 and 5.33.0):
I am not at all convinced it is the interface problem. It is more likely
the Maxima packages loaded by default in Sage library (see the corr. Sage
source files) and not loaded in your test run. When I only
`load(abs_integrate)` i Sage's 6.2 Maxima, or don't load anything at all,
I get an almost instant answer.
When I load the whole bunch from lines 142-4 of
`sage/interfaces/maxima_lib.py`
{{{
init_code = ['display2d : false', 'domain : complex', 'keepfloat : true',
'load(to_poly_solve)', 'load(simplify_sum)',
'load(abs_integrate)']
}}}
it goes much slower.
--
Ticket URL: <http://trac.sagemath.org/ticket/13973#comment:33>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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