isbn

isbn13_code, an Octave code which determines the check digit for a 13 digit International Standard Book Number (ISBN13) or reports whether a given ISBN13 is valid.

Licensing:

The information on this web page is distributed under the MIT license.

Languages:

isbn13_code is available in a MATLAB version and an Octave version.

Related Data and Programs:

isbn13_code_test

bank_code, an Octave code which computes the check digit associated with a US Bank Routing Number check digit, or reports whether a 9-digit code is valid.

isbn10_code, an Octave code which determines the check digit for a 10 digit International Standard Book Number (ISBN10) or reports whether a given ISBN10 is valid.

luhn, an Octave code which computes the Luhn check digit for a string, or validates a string.

upc, an Octave code which determines the check digit for a Uniform Product Code (UPC) or reports whether a given UPC is valid.

vin_code, an Octave code which computes the check digit for a Vehicle Identification Number (VIN), or verifies that a given VIN is legitimate.

Source Code:

• isbn13_check_digit.m, determines the check digit for an ISBN13.
• isbn13_is_valid.m, is true if a string represents a valid ISBN13.
• s_to_digits.m, extracts N digits from a string.