From: SourceForge.net <no...@so...> - 2010-05-25 13:55:43
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Bugs item #3006875, was opened at 2010-05-25 17:55 Message generated for change (Tracker Item Submitted) made by aleckalinin You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3006875&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 - Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: akalinin (aleckalinin) Assigned to: Nobody/Anonymous (nobody) Summary: ldefint() integration seems to be not correct Initial Comment: The ldefint() integration seems to be not correct. I compared Maxima results with Maple results. I tried to integrate "Lambda^4 / (Lambda^2 + a1 * epsilon * Lambda + epsilon^2)^(5/2);" function and I got three strange results in Maxima: 1. Too many terms in sum after integration. 2. Some terms have strange "false" factor in numerator. 3. Several terms have the singularity 1/epsilon, epsilon -> 0. The Maple integration produces less terms and no 1/epsilon singularity. Please, see attachments for details. I put the Maxima "false" strange term and singular term in double bar. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3006875&group_id=4933 |