When you count in hexadecimal. The hexadecimal digits are 0 1 2 3 4 5 6 7 8
9 A B C D E F

Jim


"Steven P. McNicoll" wrote in message
nk.net...

"Dylan Smith" wrote in message
...

A-Z of course. Letters can be numbers, too. I often need to count from
0-F instead of 0-9.


When are letters numbers?