NaN情况下无法比较大小

<pre name="code" class="java">package nan;
/**
 * NaN情况下无法比较大小
 * @author root
 *
 */
public class Nan {
 
	public static void main(String[] args) {
		// TODO Auto-generated method stub
 
		double i=Double.NaN;
		double j=1.0;
		if(i<j || i>=j)
			System.out.println("yes");
		else
			System.out.println("no");
		if((i+1)>i)
			System.out.println("(i+i)<i");
 
	}
 
}