using System;

using MathNet.Numerics;

​

​

namespace ActividadMN{

class EulerMethod

{

    public static double f(double x, double y)

    {

        return Math.Pow(x, 2) + 5 + 3 * x;

    }

​

    public static void Main()

    {

        double x0 = 2, y0 = 7.6, xf = 9, h = 0.001;

        int n = (int)((xf - x0) / h);

​

        double[] x = new double[n + 1];

        double[] y = new double[n + 1];

​

        x[0] = x0;

        y[0] = y0;

​

        for (int i = 0; i < n; i++)

        {

            y[i + 1] = y[i] + h * f(x[i], y[i]);

            x[i + 1] = x[i] + h;

        }

​

        Console.WriteLine("Valor de f(x) en x=9: " + y[n]);

    }

}

}