From: SourceForge.net <no...@so...> - 2006-08-15 02:49:31
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Bugs item #1379761, was opened at 2005-12-13 12:14 Message generated for change (Settings changed) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1379761&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 Group: None Status: Open Resolution: None Priority: 4 Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: nusum leaves unsimplified product 2*3 Initial Comment: nusum(n^2*2^n,n,1,k) => 2*(k^2-2*k+3)*2^k-2*3 Note the unsimplified (-2*3) Maxima 5.9.2 Using Lisp GNU Common Lisp (GCL) GCL 2.6.7 (aka GCL) ---------------------------------------------------------------------- Comment By: Robert Dodier (robert_dodier) Date: 2005-12-19 08:35 Message: Logged In: YES user_id=501686 As nusum is superseded by the more recent and extensive Zeilberger package (share/contrib/Zeilberger), I am inclined to close this report as "won't fix". GosperSum doesn't have this bug: load ("Zeilberger/LOADZeilberger.mac"); GosperSum (n^2*2^n, n, 1, k); => ((k+1)^2-4*(k+1)+6)*2^(k+1)-6 best, Robert Dodier ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1379761&group_id=4933 |