From: SourceForge.net <no...@so...> - 2012-09-08 04:50:21
|
Bugs item #3565710, was opened at 2012-09-07 21:50 Message generated for change (Tracker Item Submitted) made by antonvoropaev You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3565710&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: Open Resolution: None Priority: 5 Private: No Submitted By: Anton Voropaev (antonvoropaev) Assigned to: Nobody/Anonymous (nobody) Summary: Maxima aborts (radcan, simp=false) Initial Comment: INPUT build_info(); radcan((6^(log(12)/log(6))+1)^(1/2)), simp=false; INPUT AND OUTPUT (%i1) build_info(); (%o1) Maxima version: "5.28.0-2" Maxima build date: "2012-08-27 23:16:48" Host type: "i686-pc-mingw32" Lisp implementation type: "GNU Common Lisp (GCL)" Lisp implementation version: "GCL 2.6.8" (%i2) radcan((6^(log(12)/log(6))+1)^(1/2)), simp=false; <ABORT> ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3565710&group_id=4933 |
From: SourceForge.net <no...@so...> - 2012-10-06 18:34:41
|
Bugs item #3565710, was opened at 2012-09-07 21:50 Message generated for change (Comment added) made by rtoy You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3565710&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: Open Resolution: None Priority: 5 Private: No Submitted By: Anton Voropaev (antonvoropaev) Assigned to: Nobody/Anonymous (nobody) Summary: Maxima aborts (radcan, simp=false) Initial Comment: INPUT build_info(); radcan((6^(log(12)/log(6))+1)^(1/2)), simp=false; INPUT AND OUTPUT (%i1) build_info(); (%o1) Maxima version: "5.28.0-2" Maxima build date: "2012-08-27 23:16:48" Host type: "i686-pc-mingw32" Lisp implementation type: "GNU Common Lisp (GCL)" Lisp implementation version: "GCL 2.6.8" (%i2) radcan((6^(log(12)/log(6))+1)^(1/2)), simp=false; <ABORT> ---------------------------------------------------------------------- >Comment By: Raymond Toy (rtoy) Date: 2012-10-06 11:34 Message: Why do you want simp=false? Almost nothing works with simp set to false. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3565710&group_id=4933 |
From: SourceForge.net <no...@so...> - 2012-10-07 06:04:09
|
Bugs item #3565710, was opened at 2012-09-07 21:50 Message generated for change (Comment added) made by antonvoropaev You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3565710&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: Open Resolution: None Priority: 5 Private: No Submitted By: Anton Voropaev (antonvoropaev) Assigned to: Nobody/Anonymous (nobody) Summary: Maxima aborts (radcan, simp=false) Initial Comment: INPUT build_info(); radcan((6^(log(12)/log(6))+1)^(1/2)), simp=false; INPUT AND OUTPUT (%i1) build_info(); (%o1) Maxima version: "5.28.0-2" Maxima build date: "2012-08-27 23:16:48" Host type: "i686-pc-mingw32" Lisp implementation type: "GNU Common Lisp (GCL)" Lisp implementation version: "GCL 2.6.8" (%i2) radcan((6^(log(12)/log(6))+1)^(1/2)), simp=false; <ABORT> ---------------------------------------------------------------------- Comment By: Anton Voropaev (antonvoropaev) Date: 2012-10-06 23:04 Message: Exactly, it is almost an "almost nothing" case. If there were no ^(1/2) then simp=false would be very beneficial: (%i1) radcan(6^(log(12)/log(6))); (%o1) %e^((log(3)^2+2*log(2)^2)/(log(3)+log(2)))*2^(3*log(3)/(log(3)+log(2))) (%i2) radcan(6^(log(12)/log(6))), simp=false; (%o2) 12 Setting logsimp=false works around the problem: (%i3) radcan((6^(log(12)/log(6))+1)^(1/2)), logsimp=false; (%o3) %e^(log(%e^(log(3)+2*log(2))+1)/2) Thereafter, one needs to call radcan repeatedly: (%i4) radcan(%); (%o4) sqrt(13) Anyway, I think that specifying simp=false should not cause a fatal error. ---------------------------------------------------------------------- Comment By: Raymond Toy (rtoy) Date: 2012-10-06 11:34 Message: Why do you want simp=false? Almost nothing works with simp set to false. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3565710&group_id=4933 |