On Tuesday, June 2, 2015 at 7:26:50 PM UTC+2, Gregory Bard wrote: > > However, I think the interface between Sage and Maxima is causing the > (incorrect) substitution of sqrt( cot(x)^2 ) = cot(x). >
Something is happening in the interface, yes, but Interestingly, while I do not know Maxima, a colleague of mine does, and he > says that Maxima will not make this illegal substitution. > Well, Maxima will not solve it at all. I just confirmed with the newest version 5.36.1. also using the abs_integrate package (which is not the culprit this time, surprise) > > It would be extremely useful if the bug could be fixed before the start of > the Fall semester, because I'm teaching the same course again. :-P > The fix in Sage will just change the result to integral( sqrt( cot(x)^2 ), x, pi/4, 3*pi/4 ) For a correct solution to be returned Maxima must be improved. Regards, -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
