Where could I find a large amount of digits of pi? I have already calculated 3.14 billion using PiFast (works well under wine).
I don't care about slow download speeds.
Where could I find a large amount of digits of pi? I have already calculated 3.14 billion using PiFast (works well under wine). I don't care about slow download speeds. 

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I know you say you don't care, but I seriously suspect your cpu can calculate them faster than your network card is capable of downloading them. Given the last digit and the current state of the calculator used to generate it, the next digit can be found in constant time. It doesn't get progressively harder like finding the next prime does. 


Adding on to Joel's comment, SuperPi is one of the most popular tools for this. It's also used for stress testing. 


On Ubuntu, you can and then:
It calculates arbitrary precision given the number of digits to calculate. 


You can download precalculated digits (up to ten trillion of 'em) in zipped chunks here: http://piworld.calico.jp/estart.html 


If you want to use Python to calculate it, here's an extremely fast method (using Python and the gmpy2 library): http://www.craigwood.com/nick/articles/pichudnovsky/ Here's the code with a small fix:


