Hi, See this:
sage: R.<t>=PowerSeriesRing(QQ) sage: P.<x>=PolynomialRing(R) sage: f=(x*t+t^2)/t sage: f x + t sage: P(f) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) ... TypeError: Unable to coerce t (<type 'sage.rings.laurent_series_ring_element.LaurentSeries'>) to Rational sage: f.parent() Univariate Polynomial Ring in x over Laurent Series Ring in t over Rational Field What is a convenient way to coerce f into P? Kwankyu --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
