From: SourceForge.net <noreply@so...>  20040419 22:50:16

Bugs item #659288, was opened at 20021228 01:02 Message generated for change (Comment added) made by macrakis You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=659288&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(atan(tan(x)^2),x,inf)=>Internal er Initial Comment: limit(atan(tan(x)^2),x,inf); SIGN called on UND.  an error. The correct answer is of course IND  the limit set is [0,%pi/2). Presumably what is happening here is that there is an intermediate calculation of limit(tan(x)^2,x,inf).  >Comment By: Stavros Macrakis (macrakis) Date: 20040419 18:50 Message: Logged In: YES user_id=588346 limit(atan(und)) also gets Sign called on UND. Of course, onearg limit is not advertised to work with UND, but internally it seems likely that this is what it is doing.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=659288&group_id=4933 