Re: [sage-support] Re: Several Substitution

2014-08-18 Thread Nils Bruin
On Monday, August 18, 2014 9:25:56 AM UTC-7, Nils Bruin wrote: > > > You could use q.dict() instead which has the appropriate order, but > encodes the monomials as exponent vectors, which are hard to convert to At. > [you should go that route, though, because the other method can give you > wron

Re: [sage-support] Re: Several Substitution

2014-08-18 Thread Nils Bruin
On Monday, August 18, 2014 7:11:53 AM UTC-7, juaninf wrote: > > Dear Emmanuel, > Thank, ... one last question ... How I will be able to extract the > coefficients of t^0,t^1,...,t^(p-1) > > I wouldn't trust SR with anything in positive characteristic. It is not designed for it and it is hard to

Re: [sage-support] Re: Several Substitution

2014-08-18 Thread Juan Grados
Dear Emmanuel, Thank, ... one last question ... How I will be able to extract the coefficients of t^0,t^1,...,t^(p-1) 2014-08-18 5:49 GMT-03:00 Emmanuel Charpentier < emanuel.charpent...@gmail.com>: > If I follow your cpde correctly, you are working on polynoms in X0,..,X3. > What you attempt to

[sage-support] Re: Several Substitution

2014-08-18 Thread Emmanuel Charpentier
If I follow your cpde correctly, you are working on polynoms in X0,..,X3. What you attempt to create would be a polynom in x00,..,x03,x10..x33. Doubleplusungood... You should probaby use expressions in SR and cast the resultant expression in the ring of polynoms in x00,..x33. BTW, you don't ha