From: SourceForge.net <noreply@so...>  20091031 20:38:06

Bugs item #2849942, was opened at 20090903 15:26 Message generated for change (Settings changed) made by crategus You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=2849942&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  Integration Group: None >Status: Closed >Resolution: Invalid Priority: 5 Private: No Submitted By: Harry Litzroth (hlitzroth) Assigned to: Nobody/Anonymous (nobody) Summary: log(x) with assume(x<0) and similar problems Initial Comment: The problem I think boils down to the fact, that integrates 1/x as log(x), even if x < 0. The attached file gives more instructions suffering from this problem.  >Comment By: Dieter Kaiser (crategus) Date: 20091031 21:38 Message: Closing this bug report because it is the expected behavior of Maxima. See comment in the last posting. Dieter Kaiser  Comment By: Raymond Toy (rtoy) Date: 20090904 19:15 Message: See, for example, http://www.math.utexas.edu/pipermail/maxima/2009/017190.html. I think this is the expected behavior. Changing category to integration.  Comment By: Harry Litzroth (hlitzroth) Date: 20090903 17:57 Message: Integrating 1/x gives log x, instead of log x. If assume(x<0) Maxima nevertheless has no problem with plotting log(x) between [x^, 10^6, 10], and simply calls the assume inconistent. I will post ab htmlfile with more details.  Comment By: Raymond Toy (rtoy) Date: 20090903 15:37 Message: Can you please describe the problem here for those who do not use wxmaxima?  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=2849942&group_id=4933 