On Tuesday, February 27, 2018 at 10:58:38 AM UTC+1, Dima Pasechnik wrote: > > This is now https://trac.sagemath.org/ticket/24853 >
While that fixes the infinite loop, it only works around another issue that is uncovered, namely that the x in the polynomial returned by charpoly() is not accessible to the user: sage: P x^4 - 5/4*t*x - 2*t sage: P - x^4 x^4 - 5/4*t*x - x^4 - 2*t The reason is apparently that the polynomial ring was not created by the user on the command line but by the charpoly() code. This shows for example also with: sage: QQbar(sqrt(2)).minpoly() x^2 - 2 sage: _ + x^2 x^2 + x^2 - 2 i would consider this a high priority bug. Is there a ticket? -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
