From: SourceForge.net <no...@so...> - 2012-05-23 17:33:41
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Bugs item #3529144, was opened at 2012-05-23 10:33 Message generated for change (Tracker Item Submitted) made by mjorlitzky You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529144&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: Michael Orlitzky (mjorlitzky) Assigned to: Nobody/Anonymous (nobody) Summary: Error integrating exp(-x)*sinh(sqrt(x)) with domain: complex Initial Comment: This was previously fixed in bug #3292033, and worked for both real and complex domains in Maxima 5.26. But there seems to have been a regression with domain: complex. This became apparent in Sage where we set domain: complex; by default. ;;; Loading #P"/usr/lib64/ecl-12.2.1/sb-bsd-sockets.fas" ;;; Loading #P"/usr/lib64/ecl-12.2.1/sockets.fas" ;;; Loading #P"/usr/lib64/ecl-12.2.1/defsystem.fas" ;;; Loading #P"/usr/lib64/ecl-12.2.1/cmp.fas" Maxima 5.27.0 http://maxima.sourceforge.net using Lisp ECL 12.2.1 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) display2d:false; (%o1) false (%i2) integrate(exp(-x)*sinh(sqrt(x)),x,0,inf); (%o2) %e^(1/4)*sqrt(%pi)/2 (%i3) domain:complex; (%o3) complex (%i4) integrate(exp(-x)*sinh(sqrt(x)),x,0,inf); (%o4) 0 ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529144&group_id=4933 |
From: SourceForge.net <no...@so...> - 2012-07-29 13:24:00
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Bugs item #3529144, was opened at 2012-05-23 10:33 Message generated for change (Settings changed) made by dgildea You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529144&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: Closed >Resolution: Fixed Priority: 5 Private: No Submitted By: Michael Orlitzky (mjorlitzky) Assigned to: Nobody/Anonymous (nobody) Summary: Error integrating exp(-x)*sinh(sqrt(x)) with domain: complex Initial Comment: This was previously fixed in bug #3292033, and worked for both real and complex domains in Maxima 5.26. But there seems to have been a regression with domain: complex. This became apparent in Sage where we set domain: complex; by default. ;;; Loading #P"/usr/lib64/ecl-12.2.1/sb-bsd-sockets.fas" ;;; Loading #P"/usr/lib64/ecl-12.2.1/sockets.fas" ;;; Loading #P"/usr/lib64/ecl-12.2.1/defsystem.fas" ;;; Loading #P"/usr/lib64/ecl-12.2.1/cmp.fas" Maxima 5.27.0 http://maxima.sourceforge.net using Lisp ECL 12.2.1 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) display2d:false; (%o1) false (%i2) integrate(exp(-x)*sinh(sqrt(x)),x,0,inf); (%o2) %e^(1/4)*sqrt(%pi)/2 (%i3) domain:complex; (%o3) complex (%i4) integrate(exp(-x)*sinh(sqrt(x)),x,0,inf); (%o4) 0 ---------------------------------------------------------------------- >Comment By: Dan Gildea (dgildea) Date: 2012-07-29 06:23 Message: Fixed in git now (%i7) integrate(exp(-x)*sinh(sqrt(x)),x,0,inf),domain:complex; (%o7) %e^(1/4)*(2*gamma_incomplete(1,1)-gamma_incomplete(1/2,1)+sqrt(%pi)-2)/4 -%e^(1/4)*(2*gamma_incomplete(1,1)-gamma_incomplete(1/2,1)-sqrt(%pi)-2)/4 (%i8) ratsimp(%); (%o8) %e^(1/4)*sqrt(%pi)/2 ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529144&group_id=4933 |