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ISBN Barcodes for Books - US Barcode Authority GS1 UPC

SOLVED: The International Standard Book Number (ISBN) is an example of an error-detecting code. In this question, we will use the version of ISBN that was in effect before 2007 (some small changes have occurred since then). Each book is assigned a unique 10-digit number, called the ISBN-10. The first 9 digits record information about the publisher, author, etc., and the 10th digit is a check digit d. The check vector is C = [10, 9, 8, 7, 6, 5, 4, 3, 2, 1], and the check digit is such that if x i

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