Wonderfest: The Mathematics of Card Shuffling

Upon opening a new deck of cards, have you ever attempted a so-called perfect shuffle? A perfect shuffle splits a deck into two equal stacks, and then perfectly interlaces the cards from the two stacks. (Eight successive perfect shuffles puts the cards back into their original, fresh-out-of-the-pack order!) Only experienced card handlers can reliably perform even a single perfect shuffle, and yet the mathematics behind perfect shuffles has a rich history, including everything from mathematical card tricks to sophisticated research.

Speaker: Cornelia Van Cott, University of San Francisco

Please bring a deck of playing cards.