Hi Francisco,
On 5 Jun., 08:26, Simon King wrote:
> Anyway, IMHO it *should* work to do
> sage: P*[p.sage_poly(P) for p in I] # not implemented
My fault: Singular has an optional parameter, determining whether a
short or a long polynomial representation is used. So, I should have
done:
sage: s
Hi Jeff,
On 6 Jun., 04:33, Jeff Stroomer wrote:
> M = Matrix([
> [ 1, 0, 0, 0],
> [ 0, 1, 1, 1],
> [ 0, 0, 1, 0],
> [ 0, 0, 0, 1],
> ])
> Rt = PolynomialRing(GF(101), order = TermOrder(M), names = 'e, t,
> x, y')
> print Rt(g).degree()
>
> The f
Sage folks,
I'm running into an error when I convert a polynomial from one ring to
another. Here's an example.
R = PolynomialRing(GF(101), names = 'x, y')
x, y = R.gens()
g = x**5 - x*y**6
print g.degree()
M = Matrix([
[ 1, 0, 0, 0],
[ 0, 1, 1, 1],
[
Everyone,
Many apologies, false alarm. This problem does indeed exist in Sage
4.7, but is fixed by patch trac_11316. I assumed this patch was part
of 4.7, but apparently it's not.
Jeff
On Jun 5, 12:25 pm, Jeff Stroomer wrote:
> I installed sage 4.7 a moment ago, and am running into a problem
I installed sage 4.7 a moment ago, and am running into a problem with
term orders defined using matrices. The following works correctly:
T = TermOrder(identity_matrix(2))
R = PolynomialRing(GF(101), names = 'x, y', order = T)
print R.term_order().matrix()
But if I negate the matrix,
