package cn.edu.bjut.chapter2;

public class DoubleTester {
	public static void main(String[] args) {
		double d = 0.0 / 0.0;
		System.out.println(d);

		double a = 2.0;
		double b = 1.91;
		double c = 0.09;
		System.out.println(a - b == c);
		System.out.println(a - b);
		System.out.println(Math.abs(a - b - c) < 1E-6);
	}
}