public ActionResult Lagrange()
        {
            LaGrange_Model model = new LaGrange_Model();
            model.ans = new Answer_Model();

            return View(model);
        }
        public JsonResult Lagrange(LaGrange_Model model)
        {
            InterpolacionLaGrange lag = new InterpolacionLaGrange();

            double[] list1 = new double[model.values.Count];
            double[] list2 = new double[ model.values.Count ];

            for ( int i=0; i < model.values.Count; i++ )
            {
                list1[ i ] = ( Double.Parse( model.values[i].x) );
                list2[ i ] = ( Double.Parse( model.values[i].y) );
            }
            model.ans = new Answer_Model();

            model.ans.Res = lag.Calculate(model.inter, list1, list2);

            if (model.ans.Res[0] == 'L')
                model.ans.status = 1;
            else
                model.ans.status = 2;
            return Json(model.ans);
        }