Hi William, Thanks for the clarification. To start the discussion, let me ask if there is a good place for learning about how Sage deals with generators, the syntax X.<y>, and what classes to inherit to get this functionality working in a class?
-Jon =) On Aug 29, 2:16 am, William Stein <wst...@gmail.com> wrote: > On Fri, Aug 28, 2009 at 11:12 PM, Jonathan Hanke <jonha...@gmail.com> wrote: > > Hi, > > > I was wondering if there is (or is planned) support for natural > > multivariate power series ring constructions (with say fixed precision for > > each variable) similar to that of polynomal rings? It would be nice to be > > able to say something like > > > S = PowerSeriesRing(QQ, 'x,y', [15, 20]) > > or > > S.<x,y> = PowerSeriesRing(QQ, [15, 20]) > > > instead of > > > S1.<x> = PowerSeriesRing(QQ, 15) > > S.<y> = PowerSeriesRing(S1, 20) > > > Thanks, > > Since mid-2005 I personally remember numerous discussions about adding > multivariate power series rings to Sage. Usually what happens is people > talk about it a lot, decide it is an interesting/hard/whatever problem, > decide to do something really general, and then in every case nothing > whatever happens. This is partly because so far when people have actual > problems that are most naturally expressed using multivariate power series > rings, they just do everything using multivariate polynomial rings instead > of implementing multivariate power series. > > So, let the discussion I just predicted begin! I very much the pattern of > "discussion followed by nothing" is finally broken this time. > > -- William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
