From: SourceForge.net <noreply@so...>  20050904 19:30:17

Bugs item #1281737, was opened at 20050904 19:30 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=1281737&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 Submitted By: Vadim V. Zhytnikov (vvzhy) Assigned to: Nobody/Anonymous (nobody) Summary: limit(atan(x)/(1/exp(1)exp((1+x)^2)),x,inf,plus)  wrong Initial Comment: (%i1) limit(atan(x)/(1/exp(1)exp((1+x)^2)),x,inf,plus); %e %i log( 1) (%o1)  2 Correct result is %e*%pi/2  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1281737&group_id=4933 
From: SourceForge.net <noreply@so...>  20050914 21:36:15

Bugs item #1281737, was opened at 20050904 15:30 Message generated for change (Comment added) made by rtoy You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1281737&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 Submitted By: Vadim V. Zhytnikov (vvzhy) Assigned to: Nobody/Anonymous (nobody) Summary: limit(atan(x)/(1/exp(1)exp((1+x)^2)),x,inf,plus)  wrong Initial Comment: (%i1) limit(atan(x)/(1/exp(1)exp((1+x)^2)),x,inf,plus); %e %i log( 1) (%o1)  2 Correct result is %e*%pi/2  >Comment By: Raymond Toy (rtoy) Date: 20050914 17:36 Message: Logged In: YES user_id=28849 I think this is very likely caused by the fact that maxima thinks limit(log((1%i*x)/(1+%i*x)),x,inf,plus) is log(1) = %i*%pi/2. The correct answer is %i*%pi/2, because argument of the log is always in the third quadrant (x < 0, y < 0). I think it's because maxima thinks limit log(x) = log(limit x) in this case since the limit of the arg is a finite number.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1281737&group_id=4933 
From: SourceForge.net <noreply@so...>  20051006 15:53:12

Bugs item #1281737, was opened at 20050904 15:30 Message generated for change (Settings changed) made by rtoy You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1281737&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: Closed >Resolution: Fixed Priority: 5 Submitted By: Vadim V. Zhytnikov (vvzhy) Assigned to: Nobody/Anonymous (nobody) Summary: limit(atan(x)/(1/exp(1)exp((1+x)^2)),x,inf,plus)  wrong Initial Comment: (%i1) limit(atan(x)/(1/exp(1)exp((1+x)^2)),x,inf,plus); %e %i log( 1) (%o1)  2 Correct result is %e*%pi/2  >Comment By: Raymond Toy (rtoy) Date: 20051006 11:53 Message: Logged In: YES user_id=28849 This is fixed. See the discussion in http://www.math.utexas.edu/pipermail/maxima/2005/010905.html  Comment By: Raymond Toy (rtoy) Date: 20050914 17:36 Message: Logged In: YES user_id=28849 I think this is very likely caused by the fact that maxima thinks limit(log((1%i*x)/(1+%i*x)),x,inf,plus) is log(1) = %i*%pi/2. The correct answer is %i*%pi/2, because argument of the log is always in the third quadrant (x < 0, y < 0). I think it's because maxima thinks limit log(x) = log(limit x) in this case since the limit of the arg is a finite number.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1281737&group_id=4933 