[sage-support] Re: powers of polynomials in characteristic p>0

2009-11-21 Thread John Cremona
One difficulty with implementing this is that there are lots of different polynomial classes, and also lots of different __pow__ methods. In each case one could perhaps test to see of the characteristic was p>0 and the exponent a power of p, and call special code. (I think this was done a while a

[sage-support] Re: powers of polynomials in characteristic p>0

2009-11-20 Thread finotti
Dear Simon, On Nov 20, 2:19 pm, Simon King wrote: > Hi Luis! > > First, I would produce a clone of Sage, in order to not  destroy your > installation by mistake. So, in the shell, do >   sage -clone work > where you can replace "work" by another word that you like (except > "main"). > > (...) Th

[sage-support] Re: powers of polynomials in characteristic p>0

2009-11-20 Thread Simon King
Hi Luis! On 20 Nov., 19:10, finotti wrote: ... > I know that Sage developers have different priorities, but this is > sort of important to me... Definitely polynomials *are* a priority for some developers... > So, is there a way I can redefine how Sage > computes powers of polynomials in charac

[sage-support] Re: powers of polynomials in characteristic p>0

2009-11-20 Thread finotti
Hi, On Oct 20, 1:16 am, Robert Bradshaw wrote: > Interesting point, I've madehttp://trac.sagemath.org/sage_trac/ticket/7253 I know that Sage developers have different priorities, but this is sort of important to me... So, is there a way I can redefine how Sage computes powers of polynomials in

[sage-support] Re: powers of polynomials in characteristic p>0

2009-10-19 Thread Robert Bradshaw
Interesting point, I've made http://trac.sagemath.org/sage_trac/ticket/7253 On Oct 19, 2009, at 1:49 PM, finotti wrote: > > Dear all, > > I need to compute some larger powers of polynomials in characteristic > p>0. I've noticed that Sage does not do it very efficiently, as even > f^(p^n) takes