int rosenbrock_fdf(const gsl_vector * x, void *params, gsl_vector * f,
gsl_matrix * J) {
rosenbrock_f(x, params, f);
rosenbrock_df(x, params, J);
return GSL_SUCCESS;
}
void Nrosenbrock_fdf (const gsl_vector * x, void *params, double * f,
gsl_vector * df)
{
*f = rosenbrock_f (x, params);
Nrosenbrock_df (x, params, df);
}
