Sage acts strange when it encouters infinity and constant polynomial. Try this
sage: P.<x> = PolynomialRing(QQ) sage: w = P(1) sage: w(oo) A positive finite number While for nonconstant polynomial: sage: v = x sage: v(oo) +Infinity -- 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.
