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From: SourceForge.net <noreply@so...>  20071012 02:27:11

Bugs item #1811968, was opened at 20071011 19:27 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&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: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: echelon error Initial Comment: The "echelon()" function calculates a matrix which cannot be arrived at by elementary row operations. Look, the rank even changes! PK  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&group_id=4933 
From: SourceForge.net <noreply@so...>  20071013 01:26:10

Bugs item #1811968, was opened at 20071011 21:27 Message generated for change (Comment added) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&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: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: echelon error Initial Comment: The "echelon()" function calculates a matrix which cannot be arrived at by elementary row operations. Look, the rank even changes! PK  >Comment By: Barton Willis (willisbl) Date: 20071012 20:26 Message: Logged In: YES user_id=895922 Originator: NO A workaround is to set algebraic to true. Maybe echelon (and rank) should set algebraic to true. PS Instead of a jpg file, next time send a text only bug report: (1) it's easy to do (2) it doesn't require that the reader do any retyping (3) it has no security risks for the reader (4) it's much more likely that somebody will read your report.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&group_id=4933 
From: SourceForge.net <noreply@so...>  20080615 01:05:58

Bugs item #1811968, was opened at 20071011 20:27 Message generated for change (Comment added) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&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: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: echelon error Initial Comment: The "echelon()" function calculates a matrix which cannot be arrived at by elementary row operations. Look, the rank even changes! PK  >Comment By: Robert Dodier (robert_dodier) Date: 20080614 19:05 Message: Logged In: YES user_id=501686 Originator: NO Here's the content of the jpeg. b:matrix([1/2, sqrt(3)/2, 1, 0], [sqrt(3)/2, 1/2, 0, 1], [1, 0, 1, sqrt(3)/2], [0, 1, sqrt(3)/2, 1/2]); rank(b); => 3 echelon(b); => matrix([1,sqrt(3),2,0],[0,1,sqrt(3)/2,1/2],[0,0,1,0],[0,0,0,1]) rank(echelon(b)); => 4 triangularize(b); => matrix([1,sqrt(3),2,0],[0,2,sqrt(3),1],[0,0,6,0],[0,0,0,0])  Comment By: Barton Willis (willisbl) Date: 20071012 19:26 Message: Logged In: YES user_id=895922 Originator: NO A workaround is to set algebraic to true. Maybe echelon (and rank) should set algebraic to true. PS Instead of a jpg file, next time send a text only bug report: (1) it's easy to do (2) it doesn't require that the reader do any retyping (3) it has no security risks for the reader (4) it's much more likely that somebody will read your report.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&group_id=4933 
From: SourceForge.net <noreply@so...>  20080615 20:34:49

Bugs item #1811968, was opened at 20071012 04:27 Message generated for change (Comment added) made by andrejv You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&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: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: echelon error Initial Comment: The "echelon()" function calculates a matrix which cannot be arrived at by elementary row operations. Look, the rank even changes! PK  >Comment By: Andrej Vodopivec (andrejv) Date: 20080615 22:34 Message: Logged In: YES user_id=1179910 Originator: NO Then rank function already sets algebraic to true in case there are algebraic numbers in the matrix. Attached a patch which does the same for the echelon function. File Added: matrix.lisp.patch  Comment By: Robert Dodier (robert_dodier) Date: 20080615 03:05 Message: Logged In: YES user_id=501686 Originator: NO Here's the content of the jpeg. b:matrix([1/2, sqrt(3)/2, 1, 0], [sqrt(3)/2, 1/2, 0, 1], [1, 0, 1, sqrt(3)/2], [0, 1, sqrt(3)/2, 1/2]); rank(b); => 3 echelon(b); => matrix([1,sqrt(3),2,0],[0,1,sqrt(3)/2,1/2],[0,0,1,0],[0,0,0,1]) rank(echelon(b)); => 4 triangularize(b); => matrix([1,sqrt(3),2,0],[0,2,sqrt(3),1],[0,0,6,0],[0,0,0,0])  Comment By: Barton Willis (willisbl) Date: 20071013 03:26 Message: Logged In: YES user_id=895922 Originator: NO A workaround is to set algebraic to true. Maybe echelon (and rank) should set algebraic to true. PS Instead of a jpg file, next time send a text only bug report: (1) it's easy to do (2) it doesn't require that the reader do any retyping (3) it has no security risks for the reader (4) it's much more likely that somebody will read your report.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&group_id=4933 
From: SourceForge.net <noreply@so...>  20080712 08:28:58

Bugs item #1811968, was opened at 20071012 04:27 Message generated for change (Settings changed) made by andrejv You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&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: Closed Resolution: None Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: echelon error Initial Comment: The "echelon()" function calculates a matrix which cannot be arrived at by elementary row operations. Look, the rank even changes! PK  Comment By: Andrej Vodopivec (andrejv) Date: 20080615 22:34 Message: Logged In: YES user_id=1179910 Originator: NO Then rank function already sets algebraic to true in case there are algebraic numbers in the matrix. Attached a patch which does the same for the echelon function. File Added: matrix.lisp.patch  Comment By: Robert Dodier (robert_dodier) Date: 20080615 03:05 Message: Logged In: YES user_id=501686 Originator: NO Here's the content of the jpeg. b:matrix([1/2, sqrt(3)/2, 1, 0], [sqrt(3)/2, 1/2, 0, 1], [1, 0, 1, sqrt(3)/2], [0, 1, sqrt(3)/2, 1/2]); rank(b); => 3 echelon(b); => matrix([1,sqrt(3),2,0],[0,1,sqrt(3)/2,1/2],[0,0,1,0],[0,0,0,1]) rank(echelon(b)); => 4 triangularize(b); => matrix([1,sqrt(3),2,0],[0,2,sqrt(3),1],[0,0,6,0],[0,0,0,0])  Comment By: Barton Willis (willisbl) Date: 20071013 03:26 Message: Logged In: YES user_id=895922 Originator: NO A workaround is to set algebraic to true. Maybe echelon (and rank) should set algebraic to true. PS Instead of a jpg file, next time send a text only bug report: (1) it's easy to do (2) it doesn't require that the reader do any retyping (3) it has no security risks for the reader (4) it's much more likely that somebody will read your report.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&group_id=4933 
From: SourceForge.net <noreply@so...>  20080713 02:53:03

Bugs item #1811968, was opened at 20071011 20:27 Message generated for change (Settings changed) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&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: Closed >Resolution: Fixed Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: echelon error Initial Comment: The "echelon()" function calculates a matrix which cannot be arrived at by elementary row operations. Look, the rank even changes! PK  Comment By: Andrej Vodopivec (andrejv) Date: 20080615 14:34 Message: Logged In: YES user_id=1179910 Originator: NO Then rank function already sets algebraic to true in case there are algebraic numbers in the matrix. Attached a patch which does the same for the echelon function. File Added: matrix.lisp.patch  Comment By: Robert Dodier (robert_dodier) Date: 20080614 19:05 Message: Logged In: YES user_id=501686 Originator: NO Here's the content of the jpeg. b:matrix([1/2, sqrt(3)/2, 1, 0], [sqrt(3)/2, 1/2, 0, 1], [1, 0, 1, sqrt(3)/2], [0, 1, sqrt(3)/2, 1/2]); rank(b); => 3 echelon(b); => matrix([1,sqrt(3),2,0],[0,1,sqrt(3)/2,1/2],[0,0,1,0],[0,0,0,1]) rank(echelon(b)); => 4 triangularize(b); => matrix([1,sqrt(3),2,0],[0,2,sqrt(3),1],[0,0,6,0],[0,0,0,0])  Comment By: Barton Willis (willisbl) Date: 20071012 19:26 Message: Logged In: YES user_id=895922 Originator: NO A workaround is to set algebraic to true. Maybe echelon (and rank) should set algebraic to true. PS Instead of a jpg file, next time send a text only bug report: (1) it's easy to do (2) it doesn't require that the reader do any retyping (3) it has no security risks for the reader (4) it's much more likely that somebody will read your report.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1811968&group_id=4933 