Well, Maxima 5.26.0 just hangs...

Maxima 5.26.0 http://maxima.sourceforge.net
using Lisp ECL 11.1.1
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) integrate(ln(1+4/5*sin(x)), x)
... (waited almost an hour)
^C
Maxima encountered a Lisp error:


Console interrupt

--
Benjamin Jones



On Thu, Jun 7, 2012 at 11:21 PM, Dan Drake <[email protected]> wrote:
> On Thu, 07 Jun 2012 at 02:13PM -0700, Benjamin Jones wrote:
>> On Mac OS X 10.6.8 intel core i7 and sage-5.0 (also sage-5.1.beta2) I can
>> crash sage (and Maxima) by evaluating:
>
> I tested this on 4.8 and all of the 5.0 betas I have around. This is on
> an 8-core Xeon machine running Ubuntu 12.04 (but the binaries were built
> when it was 10.04):
>
> drake@sagenb:~/s$ for d in sage-* ; do echo -n $d && $d//sage -c
> "x=var('x');print integrate(ln(1+4/5*sin(x)), x, -3.1415, 3.1415)" ; done
>
> resulted in
>
> sage-4.8: integrate(log(4/5*sin(x) + 1), x, -3.1415, 3.1415)
> sage-5.0.beta1: integrate(log(4/5*sin(x) + 1), x, -3.1415, 3.1415)
> sage-5.0.beta2 integrate(log(4/5*sin(x) + 1), x, -3.1415, 3.1415)
>
> All these failed:
>
> sage-5.0.beta3
> sage-5.0.beta4
> sage-5.0.beta5
> sage-5.0.beta6
> sage-5.0.beta7
> sage-5.0.beta8
> sage-5.0.beta9
> sage-5.0.beta11
> sage-5.0.beta12
> sage-5.0.beta13
> sage-5.0.beta14
> sage-5.0.rc0
> sage-5.0.rc1
> sage-5.0
>
> sage-5.1.beta0
> sage-5.1.beta1
> sage-5.1.beta2
>
> So we should look between 5.0.beta2 and 5.0.beta3, I guess.
>
> Dan
>
> --
> ---  Dan Drake
> -----  http://mathsci.kaist.ac.kr/~drake
> -------

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