what is the equation for bar codes?

what is the equation for bar codes?

Best answer:

It depends on the system used to make them.

The EAN-13 system (a European system where the barcode has 13 digits) uses this encoding: en.wikipedia.org/wiki/EAN-13#Binary_encoding_of_data_digits_into_EAN-13_barcode

The EAN-8 system uses the same system, but it’s shorter (only 8 digits).

The UPC system uses this encoding: en.wikipedia.org/wiki/Universal_Product_Code

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