That doesn't tell us why Maxima thiks that this is a Cauch principal value. In fact : sage: integrate(1/cos(theta)^2,theta) tan(theta) which I remind having learned when I was about 15...
Maxima bug ? -- Emmanuel Charpentier Le vendredi 20 octobre 2017 08:39:03 UTC+2, Ralf Stephan a écrit : > > The immediate reason is that maxima returns: > Principal Value > (%o4) 2 > > and Sage since #7377 (7 years ago) catches "Principal Value" and makes it > divergent. > See https://trac.sagemath.org/ticket/7377 for reasons this was introduced. > There are tickets that urge to fix this: > > https://trac.sagemath.org/ticket/13511 > https://trac.sagemath.org/ticket/17608 > > So it's a Sage bug in the Maxima interface. > > 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 https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
