[sage-devel] Re: SIGSEGV during symbolic substitution on long expressions

2011-10-15 Thread Guilherme Brondani Torri
Hi, Just providing a feedback. With the pynac you provided, the substitution passes thru without segfault. I noticed the different ordering. Maybe that is the cause for slightly different float coefficients (after expansion) between the old and new codes acting upon my expressions. If you a

[sage-devel] Re: SIGSEGV during symbolic substitution on long expressions

2011-10-12 Thread Jean-Pierre Flori
Hi, I posted an updated spkg at http://www.infres.enst.fr/~flori/sage/pynac-0.2.4.spkg This is by no mean an official or definitive package, but it should at least include the mentioned fix. I'm not even sure it is installable or functional. You can simply install it by typing ./sage -i <...>/pyn

[sage-devel] Re: SIGSEGV during symbolic substitution on long expressions

2011-10-12 Thread Guilherme Brondani Torri
Hi Jean-Pierre, Well, this is first time it try to patch something. All links to pynac spkg seem to be broken on #9880. The ticket is a bit confusing for me to know how can I get the right pynac src or pynac-0.2.1.p0.spkg (?) On sage-4.6.2 the patches were applied with success, but during re-

[sage-devel] Re: SIGSEGV during symbolic substitution on long expressions

2011-10-11 Thread Jean-Pierre Flori
This really seems like #9880. The order/copmpare functions in Pynac have been worked on like forever in that ticket but is hopefully nearing completion. Could you try install a new aversion of pynac described there (I mean on ticket 9880) and try your example ? I really do not have the time to buil