Hi Michael, On Feb 1, 2:37 am, Michael Beeson <[email protected]> wrote: > I let Mathematica run a similar problem for 36 hours with no reply; > but I don't understand why it's too difficult.
Indeed, not easy. By the way, in your first example, you defined sage: R.<z,p,q> = QQ[] sage: a = z^2 - z^-2 sage: f = z^2 *(p-a) At that point, f is not considered a polynomial, although f does not contain negative powers. You asked how to make Sage know that f is a polynomial. Here you are: sage: f = R(f) sage: f.resultant(z-p) -p^4 + p^3 + 1 Cheers, Simon -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
