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,

[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 large

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

2012-02-15 Thread Dima Pasechnik
In gmane.comp.mathematics.sage.combinat.devel, you wrote: 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

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

2012-02-14 Thread Andrew Mathas
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, because it