From: SourceForge.net <noreply@so...>  20080909 04:37:17

Bugs item #2099542, was opened at 20080907 22:07 Message generated for change (Comment added) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=2099542&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Simplification Group: None >Status: Closed >Resolution: Works For Me Priority: 5 Private: No Submitted By: Jack O'Connor (oconnor663) Assigned to: Nobody/Anonymous (nobody) Summary: Common sum simplification unsuccessful Initial Comment: The following sum fails to simplify: sum( n / 2^n, n, 1, inf), simpsum; Presumably the answer should be 2, but instead Maxima just returns the sum in sigma notation.  >Comment By: Robert Dodier (robert_dodier) Date: 20080908 22:37 Message: simplify_sum applies simpsum and some more powerful methods (Gosper and Zeilberger and some others if I remember correctly). Anyway simplify_sum does know how to do this problem. load (simplify_sum); simplify_sum (sum( n / 2^n, n, 1, inf)); => 2 Closing this report.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=2099542&group_id=4933 