* - If the value of the current instance is Not-a-Number (NaN), the result is the string "NaN". Furthermore, infinity
* produces the result "Infinity". @n
* 6 digits are given for the precision of this method. Use String::Format() to set the specific precision.
* - If the value of the current instance is Not-a-Number (NaN), the result is the string "NaN". Furthermore, infinity
* produces the result "Infinity". @n
* 6 digits are given for the precision of this method. Use String::Format() to set the specific precision.