On Wed, Jul 6, 2011 at 9:51 AM, jeremy chabot <chabo...@gmail.com> wrote: > Hi, I am trying to implement the infinite polynomial ring as a free > commutative algebra. > > I am unsure of exactly how to do this. So far I have: > > ----------------------------------------------------------------------------------- > X.<x>=InfinitePolynomialRIng(QQ) > ---------------------------------------------------------------------------------- > class Practice3(CombinatorialFreeModule): > def __init__(self, R, X, **keywords): > self._group= X > CombinatorialFreeModule.__init__(self, R, self._group, > category=AlgebrasWithBasis(QQ)) > return > -----------------------------------------------------------------------------------
I'm not sure exactly what you're trying to do. It seems like you just want to use InfinitePolynomialRing directly: sage: X.<x> = InfinitePolynomialRing(QQ) sage: x[1]*x[2] + x[3] x_3 + x_2*x_1 sage: _*x[100] x_100*x_3 + x_100*x_2*x_1 --Mike -- 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 URL: http://www.sagemath.org
