From: SourceForge.net <noreply@so...>  20040409 19:38:37

Bugs item #928407, was opened at 20040402 11:44 Message generated for change (Comment added) made by willisb You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=928407&group_id=4933 Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: integrate(1/(x+a),x) missing abs Initial Comment: presently integrate(1/(x+a),x) returns log(x+a) It should return log(abs(x + a))  Comment By: Barton Willis (willisb) Date: 20040409 14:38 Message: Logged In: YES user_id=570592 On the reals integrate(1/x,x) == log(abs(x)) is okay, but on the complex plane, it's wrong. For one, abs isn't differentiable anywhere in the complex plane. If you run into a problem and think you need log(abs( .... )), try logcontract. Barton  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=928407&group_id=4933 