sorry if i'm being horribly ignorant here, but how exactly do you go about calculating pi out to the _th digit?

sorry if i'm being horribly ignorant here, but how exactly do you go about calculating pi out to the _th digit?
Yeah. Here's another one that may be useful.Originally Posted by Neutrino
http://en.wikipedia.org/wiki/Category:Pi_algorithms
Or if you are lazy try the taylor expansion for arctan  its slow but easier to do on paper.
I've got one as well, probably the longest explanation you will ever find:
http://www.streamsystems.com.au/
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