On 11/05/16 00:55, Ralf Stephan wrote:
sage: parent((z).polynomial(QQ)) Univariate Polynomial Ring in z over Rational Field sage: parent((1/z+z).polynomial(QQ)) Univariate Laurent Polynomial Ring in z over Rational Field
This behavior would not fit well with sage: R.<x> = PolynomialRing(QQ) sage: (x + 1/x).parent() Fraction Field of Univariate Polynomial Ring in x over Rational Field -- 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. For more options, visit https://groups.google.com/d/optout.
