ISBN13 check digit: Difference between revisions

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(new page for ISBN-13 check digit test; included langur language example)
 
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The task is to validate the check digit of an ISBN-13 code. Use some good and bad codes of your choosing for testing. See https://isbn-information.com/the-13-digit-isbn.html for details on the method of validation.

;Task:
Validate the check digit of an ISBN-13 code. Use some good and bad codes of your choosing for testing.

;See also:
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See https://isbn-information.com/the-13-digit-isbn.html for details on the method of validation.

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