8 fun facts about pi
1) Pi has been calculated out to over five trillion digits.
2) If the circumference of the earth were calculated using pi rounded to only the ninth decimal place, and error of no more than a quarter of an inch in 25,000 mi. would result.
3) Computing pi is considered to be a digital stress test of sorts for computers.
4) The first six digits of pi (314159) appear in order at least six times among the first ten million decimal places of pi.
5) At position 763 there are six nines in a row, this is known as the Feynman Point.
6) The symbol of pi has been used regularly in a mathematical sense only for the past 250 years.
7) The pi memory champion is Hiroyoki Gotu, who memorized an amazing 42,000 digits.
8) If a billion decimals of pi were printed in ordinary type, they would stretch from New York City to the middle of Kansas.
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