Originally Posted by
MiamiBill
I just learned that all AAdvantage numbers that have a mix of letters and numbers ONLY has a 0 (number zero) and not an O (capital letter O) as the letter O is not part of anyone membership.
In the software I use zero (0) is a number. NaN is not a number, or more precisely, not a number is written NaN.
I had a colleague once who could have spent the entire lunch hour pontificating about the number-ness of zero, starting from ancient Egypt and working up to the present day.