[sage-combinat-devel] Re: coxeter groups in python

2012-02-21 Thread Andrew Mathas
> If it's possible to make the base ring a LaurentPolynomialRing that > may be more efficient than making it a rational function field. > Presumably whether you can do this depends on whether you > encounter denominators that are not powers of x. Unfortunately, this is not possible and, to a larg

Re: [sage-combinat-devel] Re: coxeter groups in python

2012-02-21 Thread Daniel Bump
> I tried to do some computations with the existing Iwahori-Hecke > algebra module inside sage earlier this year. I needed to work over > the rational function field C(x), for an indeterminate x. In the end I > gave up and went back to using some gap3 code that I have, which > builds on chevie, be

[sage-combinat-devel] Re: [sage-devel] Free groups, feedback wanted.

2012-02-21 Thread mmarco
I have updated ticket 12339. It now includes a basic implementation of free groups and finitely presented groups. It has limited functionality, and maybe not the best implementation, but it works. Please test it and do any comments that you consider relevant. -- You received this message because

[sage-combinat-devel] Re: [sage-devel] Free groups, feedback wanted.

2012-02-21 Thread mmarco
I have updated ticket #12339. It includes a basic implementation of free groups and finitely presented groups. It has limited features, and maybe its not the best implementation possible, but it works. Please test it and do any relevant comments. -- You received this message because you are subsc