Chapter 14, Problem 14.19PE

(Plot the sine and cosine functions) Write a program that plots the sine function in red and cosine in blue, as shown in Figure 14.48c.

Hint: The Unicode for  π is \u03c0. To display –2π, use Text (x, y, "–2\ u03c0"). For a trigonometric function like sin(x), x is in radians. Use the following loop to add the points to a polyline:

  Polyline polyline = new Polyline();

  ObservableList<Double> list = polyline.getPoints();

  double scaleFactor = 50;

  for (int x = –170; x <= 170; x++) {

  list.add(x + 200.0);

  list.add(100 – 50 * Math.sin((x / 100.0) * 2 * Math. PI));

  }