Guy thinks out loud when squaring a 5 digit number by hand
Never miss a talk SUBSCRIBE to the TEDx channel: Benjamin makes numbers dance. In his day job, he s a professor of mathematics at Harvey Mudd College; in his other day job, he s a Mathemagician, taking the stage to perform highspeed mental calculations, memorisations and other astounding mathematic stunts. It s part of his drive to teach math and mental agility in interesting ways, following in the footsteps of such heroes as Martin Gardner. TEDxOxford is organised by University
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