using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication7
{
    public partial class Form1 : Form
    {

        public Form2 ok2;
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            double x, y;
            for (x = -Math.PI; x <= Math.PI; x += Math.PI / 180)
            {
                y = Math.Sin(4 * x);
                listBox1.Items.Add("x=" + x.ToString("0,00") + "     y=" + y.ToString("0,00"));
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            ok2 = new Form2();
            ok2.Show();
            ok2.g = ok2.CreateGraphics();
            Pen p = new Pen(Color.Red,1);
             double x,x1, y,y1;
            int a, a1, b,b1;
            for (x = -Math.PI; x <= Math.PI; x += Math.PI / 180)
            {
                y = Math.Sin(4 * x);
                x1 = x + 1 * Math.PI / 180;
                y1 = Math.Sin(4 * x1);
                a = 314 + (int)(x * 100);
                a1 = 314 + (int)(x1 * 100);
                b = 200 - (int)(y * 200);
                b1 = 200 - (int)(y1 * 200);

                ok2.g.DrawLine(p, a, b, a1, b1);

            }

        }
    }
}