On Tue, Jul 12, 2011 at 10:37 PM, robin hankin <hankin.ro...@gmail.com> wrote: > OK so it's a bug in maxima. Quite a bad one, I'd say! The answer > given by maxima is unequivocal, and wrong. > > What is the procedure for getting this fixed? Do I write to the > maxima developers or is there a mechanism to upload such reports > from the sage community?
No matter what, I would strongly encourage you to write to the Maxima mailing list about this. Before doing that, make sure to download the latest version of Maxima and try to replicate the issue directly in there. Here's how to replicate this directly in Maxima: deep:sage wstein$ sage -maxima ;;; Loading #P"/Users/wstein/sage/install/current/local/lib/ecl/sb-bsd-sockets.fas" ;;; Loading #P"/Users/wstein/sage/install/current/local/lib/ecl/sockets.fas" ;;; Loading #P"/Users/wstein/sage/install/current/local/lib/ecl/defsystem.fas" ;;; Loading #P"/Users/wstein/sage/install/current/local/lib/ecl/cmp.fas" Maxima 5.23.2 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(x^2*%e^x/(%e^x+1)^2,x,minf,inf); (%o1) 0 > > Robin > > On Tue, Jul 12, 2011 at 11:48 PM, achrzesz <achrz...@wp.pl> wrote: >> It seems that Maxima has problem here but mpmath has not: >> sage: from mpmath import * >> sage: mp.pretty=True >> sage: quad(lambda x:(x^2)*exp(x)/(1+exp(x))^2,[-inf,+inf]) >> 3.28986813369645 >> sage: n(pi^2/3) >> 3.28986813369645 >> >> A Ch >> >> -- >> To post to this group, send email to sage-support@googlegroups.com >> To unsubscribe from this group, send email to >> sage-support+unsubscr...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/sage-support >> URL: http://www.sagemath.org >> > > > > -- > Robin Hankin > Uncertainty Analyst > hankin.ro...@gmail.com > > -- > To post to this group, send email to sage-support@googlegroups.com > To unsubscribe from this group, send email to > sage-support+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/sage-support > URL: http://www.sagemath.org > -- William Stein Professor of Mathematics University of Washington http://wstein.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
