## Pi to 10 Trillion Digits

After more than a year of electronic computation, Alexander Yee and Shigeru Kondo finally reached 10 trillion digits of $\pi$. This was a follow up to last year’s computation of $\pi$ up to 5 trillion digits.

The hardware used was a 3.33 GHZ-processor desktop with 96GB DDR3 RAM. About 44TB of hard disk space was used for the computation and another 7.6 TB was used to store the value of $\pi$. The program used was called y-cruncher (see details).

The Computer Used for Computing Pi to 10 Trillion Digits

$\pi$ is the ratio of the circumference of a circle to its diameter.  That means that if we have a circle, regardless of the size, and we divide the circumference by the diameter, the quotient will always be $\pi$ or approximately $3.1416$. » Read more