On 2011-12-06, at 23:05 , Lisette Brillemans wrote: > Dear all, > > I have been looking but couldn’t find it. > Does GAP have a function to compute the minimal polynomial for a given > algebraic number? > > So I’m looking for something like MinimalPolynomial(sqrt(3)+2); > and that GAP answers then: x^2-4x+1.
To define a minimal polynomial, you have to specify the admissible coefficient field. In your case, it's the rationals, apparently, so just use gap> MinimalPolynomial (Rationals, Sqrt(3)+2); x_1^2-4*x_1+1 Cheers Burkhard. _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
