In Java, what does NaN mean?

Question

I have a program that tries to shrink a double down to a desired number. The output I get is NaN.

What does NaN mean in Java?<

Answer 1

NaN stands for Not a Number. It is used to signify any value that is mathematically undefined. Like dividing 0.0 by 0.0. You can look here for more information: https://web.archive.org/web/20120819091816/http://www.concentric.net/~ttwang/tech/javafloat.htm

Post your program here if you need more help.