public class PlotSin3 { public static void main (String[] argv) { Function F1 = new Function ("ph=0"); Function F2 = new Function ("ph=p/4"); Function F3 = new Function ("ph=p/2"); Function F4 = new Function ("ph=p"); for (double x=0; x<=1; x+=0.005) { // INSERT YOUR CODE HERE: } Function.show (F1, F2, F3, F4); } }