3 ms·
The article mentions and informally describes the Luhn algorithm which is fairly interesting. http://en.wikipedia.org/wiki/Luhn_algorithm http://en.wikipedia.o
by unwantedLetters 15y ago
The article mentions and informally describes the Luhn algorithm which is fairly interesting.
http://en.wikipedia.org/wiki/Luhn_algorithm http://en.wikipedia.org/wiki/Luhn_algorithm