TED Talks

Arthur Benjamin: Lightning calculation and other “mathemagic” (2008x2)

Ημερομηνία προβολής: Ιαν 09, 2008

In a lively show, mathemagician Arthur Benjamin races a team of calculators to figure out 3-digit squares, solves another massive mental equation and guesses a few birthdays. How does he do it? He’ll tell you.