On Saturday, 18 July 2015 08:15:39 UTC+1, Ralf Stephan wrote: > > On Friday, July 17, 2015 at 11:01:52 AM UTC+2, Johannes Lippmann wrote: >> >> What should I do now? >> > > If the (default) Maxima subroutine does not satisfy, always try SymPy: > > sage: integrate(x/(x^2+1),(x,0,infinity),algorithm='sympy') > +Infinity > > Maxima when started without Sage says: > > (%i1) integrate(x/(x^2+1),x,0,+inf); > defint: integral is divergent. > > so you found an error in Sage's interface to Maxima. > no, the bug is in the Maxima's version currently bundled with Sage (or in its combination with the Lisp compiler ECL).
$ sage --maxima ;;; Loading #P"/home/dima/software/sage/local/lib/ecl/sb-bsd-sockets.fas" ;;; Loading #P"/home/dima/software/sage/local/lib/ecl/sockets.fas" ;;; Loading #P"/home/dima/software/sage/local/lib/ecl/defsystem.fas" ;;; Loading #P"/home/dima/software/sage/local/lib/ecl/cmp.fas" Maxima 5.35.1 http://maxima.sourceforge.net using Lisp ECL 13.5.1 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/(x^2+1),x,0,+inf); (%o1) 0 (%i2) -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
