What Is the Luhn Algorithm? The Math Behind Credit Card Transactions Find out how this simple algorithm from the 1960s catches your typos Jack Murtagh Tue, August 12, 2025 at 8:30 AM PDT 6 min read ...

You’re at the checkout screen after an online shopping spree, ready to enter your credit card number. You type it in and instantly see a red error message ...

Only recently, progress has been made in obtaining o(log (rank))-competitive algorithms for the matroid secretary problem. More precisely, Chakraborty and Lachish ...

Knowing when to hold 'em, and when to fold 'em is one of life's perpetual mysteries. If you have a mathematical inclination, or a bent for probabilities, this book might well catalyze a turning point ...