In 9.2.beta7, (our port of) Maxima seems to have an nice bug : inability to evaluate (some) symbolic sums. Minimal illustration :
``` ;;; Loading #P"/usr/local/sage-9/local/lib/ecl/sb-bsd-sockets.fas" ;;; Loading #P"/usr/local/sage-9/local/lib/ecl/sockets.fas" Maxima 5.44.0 http://maxima.sourceforge.net using Lisp ECL 20.4.24 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) display2d:false; (%o1) false (%i2) sum(i, i, 1, 7); (%o2) 28 /* As expected */ (%i3) sum(i, i, 1, p); (%o3) 'sum(i,i,1,p) /*Huh ? */ (%i4) sum(i, i, 1, p), nouns; (%o4) 'sum(i,i,1,p) /* !!!! */ ``` Curiously, `sage` seems perfectly able to use Maxima's `sum` for its own purposes : ``` sage: sum(i, i, 1, n) 1/2*n^2 + 1/2*n ``` Could you check this ? - On a standalone installation of Maxima - On previous versions of Sage ? -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/28fae2a2-ab48-426a-8045-a010bcd5ee83n%40googlegroups.com.
