Re: [sage-support] Solve system of non linear equations

2012-12-12 Thread Charles Bouillaguet
> On Sat, Dec 08, 2012 at 11:44:19AM +0530, Santanu Sarkar wrote: > > Dear all, > > I have a system of non linear equations over GF(2). How to solve > > them in Sage? How large is your system ? (how many variables ?). What is the largest degree in an equation ? Depending on the answer to these

[sage-support] Re: Groebner Basis over finite field

2012-12-12 Thread Simon King
Hi! On 2012-12-13, Santanu Sarkar wrote: > When I want to calculate > Groebner basis, I have following error. > > > verbose 0 (3292: multi_polynomial_ideal.py, groebner_basis) Warning: > falling back to very slow toy implementation. This is not an error but a warning. > P1=next_prime(2^100) > R

[sage-support] Groebner Basis over finite field

2012-12-12 Thread Santanu Sarkar
I have a set of non-linear equations over a prime field. I want to solve them using Groebner basis technique. When I want to calculate Groebner basis, I have following error. verbose 0 (3292: multi_polynomial_ideal.py, groebner_basis) Warning: falling back to very slow toy implementation. P1=

Re: [sage-support] Solve system of non linear equations

2012-12-12 Thread Santanu Sarkar
Thank you very much for your help. On 9 December 2012 12:18, Georgi Guninski wrote: > On Sat, Dec 08, 2012 at 11:44:19AM +0530, Santanu Sarkar wrote: > > Dear all, > > I have a system of non linear equations over GF(2). How to solve > > them in Sage? > > > > If you need to solve large nonlinea

[sage-support] Re: Simplifying expression, 'x' vs. 'y'

2012-12-12 Thread kcrisman
> >> might each be considered "simpler" depending on the context, which is the >> way a lot of people who don't know about decidability would perceive this >> question (or so my experience has been interacting with a lot of people who >> ask about why Sage doesn't "simplify" this or that). I

Re: [sage-support] Re: Differential algebra support

2012-12-12 Thread Charles Bouillaguet
Sorry for catching up so late, The Maple package for differential algebra, mostly written by François Boulier, has been ported to SAGE. It is not part of SAGE yet, but we hope that it will soon be. In any case, you can follow its progress there : http://trac.sagemath.org/sage_trac/ticket/1326

[sage-support] Re: Simplifying expression, 'x' vs. 'y'

2012-12-12 Thread JamesHDavenport
On Wednesday, 12 December 2012 02:28:19 UTC, kcrisman wrote: > > > > On Tuesday, December 11, 2012 6:52:53 PM UTC-5, JamesHDavenport wrote: > >> Pedantic Note. Jacques Carette's paper: Understanding Expression >> Simplification. >> Proc. ISSAC 2004 (ed. J. Gutierrez), ACM Press, New York, 2004,