On Feb 14, 7:27 am, Ben Hutz <[email protected]> wrote: > R.<x,y,c>=PolynomialRing(QQbar,3) > Y=(x^4*y + 2*c*x^2*y^3 - x*y^4 + (c^2 + c)*y^5)/(x^2*y - x*y^2 +c*y^3)
In addition, this doesn't simplify, whereas over QQ sage recognizes the denominator divides the numerator (you still get a fraction field element, though). That's probably because we only have basic multivariate polynomial arithmetic over QQbar (no gcds/groebner bases). Incidentally, sage: R.<x,y,z>=QQ[] sage: K=FractionField(R) sage: hash(R.0),hash(K.0) (15360174650385711, 15360174650385711) so there the discrepancy in hash values does not occur. The practical solution to your problem is probably to only use QQbar where you really need to. -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-devel?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
