[AccessD] adding control number

Hi Marty

Yes, Modulus 10 verification is widely used. 
Another example is the European unique product numbers EAN-8 and EAN-13
which I understand now is to be implemented in the US as well. Usually
it is presented as a barcode too.

Another check is the Modulus 9710 verification. Much more fun, and used
for the international exchange of bank accounts called IBAN.

/gustav

>>> martyconnelly at shaw.ca 27-08-2005 07:19 >>>
Just as a matter of interest this works to verify last digit on
Canadian 
SIN Social Insurance number
Just pass first 8 digits in string ModulusAppend(lSIN, 10)
and you get 9'th check digit appended.
You could use for verifying ISBN numbers but need to handle additional

 appending of -X in method

Gustav Brock wrote:

>Hi Pedro 
>
>Looks like a Modulus 10 check digit calculation.