----Tell
Alice Springs NT
>"Roderick Smith" <rodsmith@werple.net.au> wrote:
>The check characters match an Australia-wide standard, and are used as a
>crosscheck when information is entered into a computer. They are
>calculated on a modular arithmetic formula, in which all codes are padded
>out to four letters and five digits (using zeros if necessary). This was
>published in Newsrail and Railway Digest at the time the system was adopted
>(mid 1980s).
>--
>Regards
>Roderick Smith
>Rail News Victoria Editor