cos.java

import java.applet.*;
import java.awt.*;
public class cos extends Applet{
	// author @ayyuce
		// This program draws cos line
public void paint(Graphics g){
	g.setColor(Color.BLUE);
	g.drawLine(50, 300, 750, 300);
	g.drawLine(400, 50, 400, 550);
	g.drawLine(750, 300, 725, 325);
	g.drawLine(750, 300, 725, 275);
	g.drawLine(400, 50, 425, 75);
	g.drawLine(400, 50, 375, 75);
	g.drawString("x",750,250);
	g.drawString("y", 425,25);
	g.setColor(Color.RED);
	double x;
	for(x=0.0;x<=4*3.14;x+=0.01){
		g.drawLine(400+(int)(10*x), 300-(int)(10*3*Math.cos(2.0*x)), 400+(int)(10*(x+0.01)), 300-(int)(10*3*Math.cos(2.0*(x+0.01))));
	}
	
}
	
	
}