Java tutorial
public class Main { public static void main(String[] argv) throws Exception { for (double i = 1.0; i < 20.0; i++) System.out.printf("%10.2f %10.2f %10.2f\n", i, Math.sqrt(i), i * i); } } /* 1.00 1.00 1.00 2.00 1.41 4.00 3.00 1.73 9.00 4.00 2.00 16.00 5.00 2.24 25.00 6.00 2.45 36.00 7.00 2.65 49.00 8.00 2.83 64.00 9.00 3.00 81.00 10.00 3.16 100.00 11.00 3.32 121.00 12.00 3.46 144.00 13.00 3.61 169.00 14.00 3.74 196.00 15.00 3.87 225.00 16.00 4.00 256.00 17.00 4.12 289.00 18.00 4.24 324.00 19.00 4.36 361.00 */