public class MathTest
{
	public static void main (String[] args)
	{
		double pi = Math.PI;
		double rad = Math.PI / 2; // Radiant von 90 Grad
		double sin = Math.sin (rad);
		double cos = Math.cos (rad);
		System.out.println ("Sinus von 90 Grad: " + sin);
		System.out.println ("Cosinus von 90 Grad: " + cos);
	}
}