Hi Martin, On Aug 26, 10:46 pm, Martin Albrecht <m...@informatik.uni-bremen.de> wrote: > Hi, > > isn't the OP asking for the infinite polynomial ring which Simon and Mike > wrote?
I was wondering myself, of course. But in Nathann's examples, the arguments to the dictionary variables are any strings, e.g., y["g"]*y["h"] from the original post. Anyway, Nathann, indeed Infinite Polynomial Rings would be a possible approach if you address your variables by natural numbers, x[1]*x [140]+3*y[0]*x[2], rather than by arbitrary strings. They are, of course, described in the Sage References. Cheers, Simon --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---