Mathematics sometimes impacts our lives in seemingly unsuspecting ways, including card shuffling. Math can answer the age-old question of how many times a deck of cards needs to be shuffled to ensure ...

If you’ve ever shuffled a deck of playing cards, you’ve most likely created a unique deck. That is, you’re probably the only person who has ever arranged the cards in precisely that order. Although ...

A decades-old proof showed that seven shuffles are enough to mix up a deck of cards. But it requires you to cut the deck with the precision of a professional magician. A new proof gets around that ...