Menu
▾
▴
[Maxima-bugs] [ maxima-Bugs-2367927 ] Error ploting x^(2/3)
|
From: SourceForge.net <no...@so...> - 2008-12-25 08:28:49
|
Bugs item #2367927, was opened at 2008-11-30 17:24 Message generated for change (Comment added) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=2367927&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 - Plotting Group: None >Status: Closed >Resolution: Fixed Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: Error ploting x^(2/3) Initial Comment: While trying to plot x^(2/3) I got the graph just for x >= 0. (x^2)^(1/3) produces the same problem, but (x^2) is always positive... So no problems should appears. -------------------------------------- Maxima version: 5.16.3 Maxima build date: 22:48 8/24/2008 host type: i686-pc-mingw32 lisp-implementation-type: GNU Common Lisp (GCL) lisp-implementation-version: GCL 2.6.8 ---------------------------------------------------------------------- >Comment By: Robert Dodier (robert_dodier) Date: 2008-12-25 01:28 Message: There are actually 2 problems reported here. (1) With new revision r1.133 src/plot.lisp plot2d prints a warning message when some or all of the values are non-numeric. See also bug report 1757448. Closing this report as fixed. (2) (x^2)^(1/3) simplifies to x^(2/3) which has different properties. I've opened another bug report for that: 2465992 ---------------------------------------------------------------------- Comment By: Nobody/Anonymous (nobody) Date: 2008-12-21 12:38 Message: There isn't any problem with mine ---------------------------------------------------------------------- Comment By: Nobody/Anonymous (nobody) Date: 2008-12-08 09:38 Message: Solved with rad(n,x):=signum(x)*abs(x)^(1/n) example rad(3,8)=2 rad(5,32)=2 rad(3,27)=3 ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=2367927&group_id=4933 |