FRANKFURT, Germany -- A 38-year-old with degrees in psychology, education and computer science set a record by needing only 11.8 seconds to calculate the 13th root of a 100-digit number in his head. Onlookers with electronic calculators needed more time to solve the problem that Gert Mittring figured on his own, with two umpires checking the time.
"I first think of an elegant problem-solving algorithm and the result comes immediately," said Mittring, who beat the previous record of 13.55 seconds, set by Frenchman Alexis Lemaire in 2002.
Wow.
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