Problem 45486. Check Digit - 01

The International Standard Book Number (ISBN) is a numeric commercial book identifier that is intended to be unique.

It used to be to 10-digit long. Recently it is changed to 13-digit.

For example, a= '0-306-40615-2' is in ISBN-10 format.

ISBN-10 check digit (which is the last digit of the 10-digit ISBN) must range from 0 to 10 (the symbol 'X' is used for 10) and must be such that the sum of the ten digits, each multiplied by its (integer) weight, descending from 10 to 1, is a multiple of 11.

ISBN-13 uses a different approach to calculate the check digit.

For this problem, u've to calculate the check digit for ISBN-10.

Solution Stats

35.24% Correct | 64.76% Incorrect
Last Solution submitted on Oct 15, 2023

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers21

Suggested Problems

More from this Author165

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!