Man in Japan Computes Value Of Pi To 5 Trillion Digits

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A company employee in Nagano Prefecture calculated the value of pi to five trillion digits this month using a self-made personal computer, beating the record set by a French engineer who calculated it to about 2.7 trillion digits late last year.

To calculate the ratio of the circumference of a circle to its diameter, to an undetermined number of digits, Shigeru Kondo, a 55-year-old resident of Iida, assembled a computer with 32 terabytes of hard-drive capacity and used an application made by Alexander Yee, a 22-year-old student at a U.S. graduate school…

 

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