static double Poly(double x, int degP, List <double> listP)
{
Polynome p1 = new Polynome(listP, degP + 1);
return(p1.GetValue(x));
}
static double FirstDerivate(double x, int degD, List <double> listD)
{
Polynome p1 = new Polynome(listD, degD + 1);
return(p1.GetValue(x));
}