NaN values indicates that a calculation has no result in ordinary arithmetic : double « Java Source And Data Type « SCJP

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SCJP » Java Source And Data Type » double

1.14.2.NaN values indicates that a calculation has no result in ordinary arithmetic

public class MainClass{

    public static void main(String[] argv){

       int i = -2;

       double j = Math.sqrt(i);

       System.out.println(j);



    }

}

NaN

1.14.double
	1.14.1.	Attach a D or d to double literals, but it is not necessary.
	1.14.2.	NaN values indicates that a calculation has no result in ordinary arithmetic
	1.14.3.	A value containing a decimal point is assumed to be the 64-bit double,
	1.14.4.	Division by zero in floating-point-arithmetic: No exception occurs;
	1.14.5.	See if a floating-point result is NaN, use the Float.isNaN or Double.isNaN static method.
	1.14.6.	Float and Double classes define MAX_VALUE, MIN_VALUE, POSITIVE_INFINITY, and NEGATIVE_INFINITY.

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