From: <noreply@so...>  20020919 04:18:35

Bugs item #611411, was opened at 20020919 00:18 You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=611411&group_id=4933 Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: limit asks sign of IND Initial Comment: limit(abs(sin(x)),x,inf) foolishly asks the user Is IND positive, negative, or zero? Moreover, if the user foolishly replies zero, Maxima gets into an infinite loop! (Note that the only case where Limit(abs(IND)) should not return IND is if the limit set consists exactly of { x ,  x } for some x. This does happen, it is true, but Limit has far less subtle bugs.... Yes, I know, single argument Limit only handles the various INFs, not IND and UND.)  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=611411&group_id=4933 
From: SourceForge.net <noreply@so...>  20060409 20:28:28

Bugs item #611411, was opened at 20020918 22:18 Message generated for change (Settings changed) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=611411&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  Limit Group: None Status: Open Resolution: None Priority: 5 Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: limit asks sign of IND Initial Comment: limit(abs(sin(x)),x,inf) foolishly asks the user Is IND positive, negative, or zero? Moreover, if the user foolishly replies zero, Maxima gets into an infinite loop! (Note that the only case where Limit(abs(IND)) should not return IND is if the limit set consists exactly of { x ,  x } for some x. This does happen, it is true, but Limit has far less subtle bugs.... Yes, I know, single argument Limit only handles the various INFs, not IND and UND.)  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=611411&group_id=4933 
From: SourceForge.net <noreply@so...>  20060626 18:27:06

Bugs item #611411, was opened at 20020918 22:18 Message generated for change (Comment added) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=611411&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  Limit Group: None Status: Open Resolution: None Priority: 5 Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: limit asks sign of IND Initial Comment: limit(abs(sin(x)),x,inf) foolishly asks the user Is IND positive, negative, or zero? Moreover, if the user foolishly replies zero, Maxima gets into an infinite loop! (Note that the only case where Limit(abs(IND)) should not return IND is if the limit set consists exactly of { x ,  x } for some x. This does happen, it is true, but Limit has far less subtle bugs.... Yes, I know, single argument Limit only handles the various INFs, not IND and UND.)  >Comment By: Robert Dodier (robert_dodier) Date: 20060626 12:27 Message: Logged In: YES user_id=501686 Observed in 5.9.3. This may be due in some part to a bug or wart in asksign  if asksign is asked about ind, it may see that ind is neither pos nor neg nor zero & therefore ask the user about ind. Seems like asksign should return ind. But that in turn supposes that the caller knows how to cope with a ind return value. Just a thought.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=611411&group_id=4933 
From: SourceForge.net <noreply@so...>  20070922 16:53:24

Bugs item #611411, was opened at 20020919 00:18 Message generated for change (Comment added) made by dgildea You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=611411&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  Limit Group: None >Status: Closed >Resolution: Fixed Priority: 5 Private: No Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: limit asks sign of IND Initial Comment: limit(abs(sin(x)),x,inf) foolishly asks the user Is IND positive, negative, or zero? Moreover, if the user foolishly replies zero, Maxima gets into an infinite loop! (Note that the only case where Limit(abs(IND)) should not return IND is if the limit set consists exactly of { x ,  x } for some x. This does happen, it is true, but Limit has far less subtle bugs.... Yes, I know, single argument Limit only handles the various INFs, not IND and UND.)  >Comment By: Dan Gildea (dgildea) Date: 20070922 12:53 Message: Logged In: YES user_id=1797506 Originator: NO fixed in limit.lisp rev 1.41 (%i4) limit(abs(sin(x)),x,inf); (%o4) ind See also bug 1629723.  Comment By: Robert Dodier (robert_dodier) Date: 20060626 14:27 Message: Logged In: YES user_id=501686 Observed in 5.9.3. This may be due in some part to a bug or wart in asksign  if asksign is asked about ind, it may see that ind is neither pos nor neg nor zero & therefore ask the user about ind. Seems like asksign should return ind. But that in turn supposes that the caller knows how to cope with a ind return value. Just a thought.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=611411&group_id=4933 