public ActionResult MetodoNewton()
        {
            MetodoNewton_Model model = new MetodoNewton_Model();

            model.function1   = "cos(x)-x";
            model.function2   = "cos(x)-x";
            model.Aproximado  = 0.74;
            model.Tol         = 0.0001;
            model.Iteraciones = 20;
            NewtonRaphson newton = new NewtonRaphson();

            model.ans     = new Answer_Model();
            model.ans.Res = newton.newtonRaphson(model.function1, model.function2, model.Aproximado, model.Tol, model.Iteraciones);
            return(View(model));
        }
        public ActionResult MetodoNewton(MetodoNewton_Model model, string submitbutton)
        {
            NewtonRaphson newton = new NewtonRaphson();

            model.ans     = new Answer_Model();
            model.ans.Res = newton.newtonRaphson(model.function1, model.function2, model.Aproximado, model.Tol, model.Iteraciones);
            if (model.ans.Res[0] == 'L')
            {
                model.ans.status = 1;
            }
            else
            {
                model.ans.status = 2;
            }
            return(View(model));
        }