Java tutorial
public class Main { public static void main(String[] args) { double d1 = 1.2, d2 = -2.3, d3 = 0.0; System.out.println("Size of ulp of " + d1 + " = " + StrictMath.ulp(d1)); System.out.println("Size of ulp of " + d2 + " = " + StrictMath.ulp(d2)); System.out.println("Size of ulp of " + d3 + " = " + StrictMath.ulp(d3)); } }