#12731: Disable abs_integrate
-------------------------------------+-------------------------------------
Reporter: roed | Owner: burcin
Type: defect | Status: needs_work
Priority: critical | Milestone: sage-6.8
Component: calculus | Resolution:
Keywords: | Merged in:
Authors: Ralf Stephan | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/rws/disable_abs_integrate | 1993a28f9ea2dec2cfb255fddee6f01939f69372
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Description changed by slelievre:
Old description:
> Maxima's `abs_integrate` contributed package gives us lots of nice new
> integrals, but also really breaks a lot of stuff, apparently. Add to
> this list as you see fit:
> * #13733 (fixed but note unwanted interactions)
> * #11590 sgn() function (not reported upstream?)
> * #14591 cosh integral incorrect because of abs_integrate
> * #16643 integrate() infinite loop
> * #17183 another abs_integrate error
> * #17468 log(abs(sin())) problem
> * #17511 abs(sin(x)) and abs(cos(x)) are flat-out wrong
> ----
>
> Old:
>
> Can someone more knowledgeable about using maxima for integration
> determine what the right warning to show is and when to show it? See
> #12691 for what a stopgap is.
New description:
Maxima's `abs_integrate` contributed package gives us lots of nice new
integrals, but also really breaks a lot of stuff, apparently. Add to this
list as you see fit:
* #13733 Incorrect integral in Maxima
* #11590 Integrating the sgn() function can produce incorrect results
* #14591 cosh integral incorrect because of abs_integrate
* #16643 integrate() infinite loop
* #17183 Yet another abs_integrate trig integral problem
* #17468 Strange integration error/hang with log(abs(sin(x)))
* #17511 Get integral of abs(sin(x)) and abs(cos(x)) right
----
Old:
Can someone more knowledgeable about using maxima for integration
determine what the right warning to show is and when to show it? See
#12691 for what a stopgap is.
--
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Ticket URL: <http://trac.sagemath.org/ticket/12731#comment:35>
Sage <http://www.sagemath.org>
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and MATLAB
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