On Sat, Mar 14, 2015 at 6:30 PM, david.guichard <david.guich...@gmail.com> wrote: > I want to do something like this: > > R = PolynomialRing(QQ,'x');S.<a>=R.quotient(x^3+x+1); > T.<b>=QQ[] > b*a > > Namely, create expressions mixing rational variables and elements of a > quotient field over the rationals. > > Doing something like this: > > (3/4)*a > > is fine, but the b*a, gives me > > TypeError: unsupported operand parent(s) for '*': 'Univariate Polynomial > Ring in b over Rational Field' and > 'Univariate Quotient Polynomial Ring in a over Rational Field with modulus > x^3 + x + 1' > > > Is there a way to do what I want?
Use a number field instead: R.<x> = QQ[] S.<a> = NumberField(x^3 + x + 1) T.<b> = QQ[] a*b https://cloud.sagemath.com/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/files/support/2015-03-14-poly-nf.sagews > > -- > 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 http://groups.google.com/group/sage-support. > For more options, visit https://groups.google.com/d/optout. -- William (http://wstein.org) -- 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 http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
