The following code produces the weird result: sage: R.<c>=QQ[] sage: S.<x,y>=R[] sage: u=FractionField(S)(x^2+y^2) sage: v = u.numerator()/u.denominator() sage: print u.numerator().parent() sage: print v.numerator().parent()
Output: Multivariate Polynomial Ring in x, y over Univariate Polynomial Ring in c over Rational Field Multivariate Polynomial Ring in x, y over Fraction Field of Univariate Polynomial Ring in c over Rational Field Since u.denominator()=1, I expected v to be equal to u, and certainly for their numerators to be over the same base field. I think the base field change may be an issue with the method inverse_of_unit in rings/polynomial/multi_polynomial_element.py. Any advice would be greatly appreciated! This base field change was causing an error with the dynatomic_polynomial method. -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/ae39a359-771e-48ca-a232-cb183454d02f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
