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Dr. Goodwin had copyrighted his solution to squaring the circle, and his idea was to allow Indiana to use these new facts in its schools free of charge. People in the rest of the country and the world would have to pay him a royalty. ... Pi is the ratio of the circumference to the diameter of the circle, and the ratio 4 to 5/4 is 3.2. A nice, round, wrong number.
 mathematics pi Indiana
A computer scientist claims to have computed the mathematical constant pi to nearly 2.7 trillion digits, some 123 billion more than the previous record. Fabrice Bellard used a desktop computer to perform the calculation, taking a total of 131 days to complete and check the result. This version of pi takes over a terabyte of hard disk space to store. Previous records were established using supercomputers, but Mr Bellard claims his method is...

2010-01-06

 pi mathematics computer constant algorithm
A researcher has calculated the 2,000,000,000,000,000th digit of the mathematical constant pi.

2010-09-16

 pi mathematics hadoop cluster MapReduce constant