NaN, which stands for Not a Number, is a value or symbol that is usually produced as the result of an operation on invalid input operands.
More details can be found here:
http://en.wikipedia.org/wiki/NaN
NaN, which stands for Not a Number, is a value or symbol that is usually produced as the result of an operation on invalid input operands.
More details can be found here:
http://en.wikipedia.org/wiki/NaN