Re: SquareFree Polynomial

["Karim.Belabas" <Karim.Belabas@math.u-psud.fr>]

On Wed, 4 Apr 2001, Jean-Marc Sac-Epée wrote:
> I would like to know if there exists a pari command to test if a
> polynomial is squarefree or not.
> I can always use something like "if(degree(gcd0(pol,derpol,0)) == 0)" ,
> but is there something to do it quicker?

Quicker in the sense of typing time:

  if (issquarefree(pol)) ... 

Quicker in the sense of execution time: No.

What's the domain for the coefficients ? Z ?

      Karim.
-- 
Karim Belabas                    email: Karim.Belabas@math.u-psud.fr
Dep. de Mathematiques, Bat. 425
Universite Paris-Sud             Tel: (00 33) 1 69 15 57 48
F-91405 Orsay (France)           Fax: (00 33) 1 69 15 60 19
--
PARI/GP Home Page: http://www.parigp-home.de/