I tried the following:
In [1]: from sympy import *
In [2]: R, x= ring('x', GF(2))
In [3]: p= x**5 + 1
In [4]: q= x+1
In [5]: div(p, q)
The result is an exception: SympifyError: x**5 + 1 mod 2
Any advice will be appreciated.
On Mon, May 23, 2016 at 10:05 PM, Kalevi Suominen <jks...@gmail.com> wrote:
>
>
> On Tuesday, May 24, 2016 at 3:37:42 AM UTC+3, Phillip M. Feldman wrote:
>>
>> I would like to perform operations on polynomials over GF(2), i.e.,
>> polynomials with binary coefficients. Is there a way to do this with SymPy?
>>
>> There is a sympy.polys.galoistools module, but I haven't found any user
>> documentation for it
>>
>
> galoistools is the low lever implementation module that is not intended
> for direct use. The user interface is the
> same as with other polynomials. To define a polynomial ring R with
> generator (or 'unknown') x over GF(2) you write
>
> R, x = ring('x', GF(2))
>
> Polynomials are then constructed in the usual way: p = x**2 + x , etc. and
> all the standard operations are valid. (Note: x is also a polynomial, not
> a Symbol.)
>
> --
> You received this message because you are subscribed to a topic in the
> Google Groups "sympy" group.
> To unsubscribe from this topic, visit
> https://groups.google.com/d/topic/sympy/nVDoS5B7DXw/unsubscribe.
> To unsubscribe from this group and all its topics, send an email to
> sympy+unsubscr...@googlegroups.com.
> To post to this group, send email to sympy@googlegroups.com.
> Visit this group at https://groups.google.com/group/sympy.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/sympy/7895ce42-a158-4682-8590-4208c16580a4%40googlegroups.com
> <https://groups.google.com/d/msgid/sympy/7895ce42-a158-4682-8590-4208c16580a4%40googlegroups.com?utm_medium=email&utm_source=footer>
> .
>
> For more options, visit https://groups.google.com/d/optout.
>
--
You received this message because you are subscribed to the Google Groups
"sympy" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to sympy+unsubscr...@googlegroups.com.
To post to this group, send email to sympy@googlegroups.com.
Visit this group at https://groups.google.com/group/sympy.
To view this discussion on the web visit
https://groups.google.com/d/msgid/sympy/CAB2ViTbjghR%3DFpXFQ%3DHeLm4XdnWVHWdY6O1uAEje4M5cGxtf-g%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.
