TED Talks

Arthur Benjamin: Lightning calculation and other “mathemagic”

TV-PG
2008 • E2    Jan 9, 2008    20m
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.

Where to Watch TED Talks - 2008 • E2

 

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