From: SourceForge.net <noreply@so...>  20070719 16:37:01

Bugs item #1690374, was opened at 20070329 01:41 Message generated for change (Comment added) made by rtoy You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1690374&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  Trigonometry Group: None >Status: Closed >Resolution: Fixed Priority: 4 Private: No Submitted By: Barton Willis (willisbl) Assigned to: Nobody/Anonymous (nobody) Summary: asin(1 / sqrt(2)) Initial Comment: Maxima doesn't know that asin(1/sqrt(2)) = %pi/4. (%i9) asin(1/sqrt(2)), %piargs : 'true; (%o9) asin(1/sqrt(2)) Here is a workaround (is there something better?) (%i10) %,logarc, rectform; (%o10) %pi/4 Maxima does know asin(1/2) = %pi / 6: (%i11) asin(1/2), %piargs : 'true; (%o11) %pi/6  >Comment By: Raymond Toy (rtoy) Date: 20070719 12:37 Message: Logged In: YES user_id=28849 Originator: NO Fixed in CVS: trigo.lisp, rev 1.13.  Comment By: Raymond Toy (rtoy) Date: 20070402 12:34 Message: Logged In: YES user_id=28849 Originator: NO After looking at the code in simp%asin, it seems like an oversight that it doesn't handle 1/sqrt(2). I'll try to patch that up soon.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1690374&group_id=4933 