## Nicholas Sze of Yahoo Finds Two-Quadrillionth Digit of Pi 299

Posted
by
timothy

from the I'm-a-good-guesser-in-binary-too dept.

from the I'm-a-good-guesser-in-binary-too dept.

gregg writes

*"A researcher has calculated the 2,000,000,000,000,000th digit of pi — and a few digits either side of it. Nicholas Sze, of technology firm Yahoo, determined that the digit — when expressed in binary — is 0."*
## The interesting thing about this article is how (Score:2, Interesting)

Of course I'm very interested in this since it seems I'll be doing something like it in the near future as part of getting my master's degree.

## A serious question (Score:4, Interesting)

## Bailey–Borwein–Plouffe formula (Score:3, Interesting)

Bailey–Borwein–Plouffe formula [wikimedia.org] lets you calculate the n-th digit of pi without calculating the n-1 digits.

I wonder what formula was used to calculate the digit here.

## Re:A serious question (Score:3, Interesting)

## Re:A serious question (Score:3, Interesting)

So obviously, 640 digits of pi should be enough for anybody.

And here they are:

http://www.eveandersson.com/pi/digits/pi-digits?n_decimals_to_display=640&breakpoint=100 [eveandersson.com]