int Huat_Polynomial_Interval(int Degree,VECTOR &Coeff);with:

`Degree`: degree of the polynomial`Coeff`: the`Degree+1`coefficients of the polynomial in increasing degree

int Huat_Polynomial_Interval(int Degree,INTERVAL_VECTOR &Coeff);This procedure will return 1 if all the polynomials in the set have their roots real, -1 if some polynomials in the set have all roots real but some others have complex roots and 0 if all the polynomials in the set have complex roots.

Jean-Pierre Merlet 2012-12-20