On Mar 21, 5:34 pm, Alec Mihailovs <alec.mihail...@gmail.com> wrote:
> So both of them should be corrected by dealing with 0 separately and
> converting python int to Sage integers in int4.
Here are the corrected versions of int4 and poly_repr,
sage: def int4(z):
....: C=reversed(map(int,z.polynomial().coeffs()))
....: fc=parent(z).characteristic()
....: return reduce(lambda x,y:fc*x+y,C,0)
def poly_repr(n,f):
C=reversed(n.digits(f.characteristic()))
return reduce(lambda x,y:f.gen()*x+y,C,f.zero())
sage: type(int4(F.one()))
<type 'sage.rings.integer.Integer'>
sage: poly_repr(0,F)
0
sage: type(_)
<class
'sage.rings.finite_field_element.FiniteField_ext_pariElement'>
sage: int4(F.zero())
0
sage: type(_)
<type 'sage.rings.integer.Integer'>
Alec Mihailovs
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