Re: Conversion to field element

[Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>]

On Tue, Dec 30, 2014 at 12:11:12AM +0100, Josef Eschgfaeller wrote:
> Trying to calculate sqrt(11) in GF(289),
> is this the right way of conversion of
> 11 to an element of the field?

> p=17; p2=p^2
> t=ffgen(p2,'t)
> eleven=11+0*t \\ Correct conversion?
> r=sqrt(eleven)
> print(r) \\ 5*t+11
> print(r^2) \\ 11

Personnally, I would use
eleven=11*t^0
but this is mostly a matter of taste.

Cheers,
Bill.