import java.awt.Graphics;

public class FloydApplet extends java.applet.Applet {
    double f(double x) {
//      return (Math.cos(x/5) + Math.sin(x/7) + 2) * size().height / 4;
        return (Math.cos(x/3)*Math.cos(x/30) + 1)/2 * size().height;
    }

    public void paint(Graphics g) {
        for (int x = 0 ; x < size().width ; x++) {
	    g.drawLine(x, (int)f(x), x + 1, (int)f(x + 1));
        }
    }
  public String getAppletInfo() {
    return "draws a sin graph.";
  }
}