Thank you all for your replies!  Now I have another problem:

sage: for f in list(GF(2)['x'].polynomials(of_degree=2)):
....:     print len(prime_divisors(f)), f
....:
1 x^2
1 x^2 + 1
2 x^2 + x
1 x^2 + x + 1


Only one of these polynomials should have a 1 in the first column (the
polynomial that's irreducible).  What am I doing wrong?

Thanks,
NS






On Mar 9, 1:20 pm, John Cremona <john.crem...@gmail.com> wrote:
> On 9 Mar, 18:05, YannLC <yannlaiglecha...@gmail.com> wrote:
>
>
>
> > On Mar 9, 6:38 pm, Nick Alexander <ncalexan...@gmail.com> wrote:
>
> > > On 9-Mar-09, at 8:48 AM, Noel wrote:
>
> > > > Hello Y'all,
>
> > > > What's the best way of listing all polynomials of a given degree with
> > > > coefficients in a finite field?
>
> > > If you want a one liner, you could use
>
> > > sage: [ GF(3)['x'](list(t)) for t in  (GF(3)^2) ]
> > > [0, 1, 2, x, x + 1, x + 2, 2*x, 2*x + 1, 2*x + 2]
>
> > > Nick
>
> > if you want another one liner, and an exact degree, you could use
>
> > list(GF(3)['x'].polynomials(of_degree=2))
>
> That is better since (without the list) it is an iterator;  also you
> can put in max_degree= instead of of_degree= to get all polys up to a
> given degree.  Someone else must have needed this and implemented it!
>
> John
>
>
>
> > Yann
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