/PROG/ Challenge Number 3 - Pi

Make a program to calculate pi to the n'th decimal. Input the variable at runtime.  Program In the language of you choice. (and none of the print"3.1415" crap.)

You need to end your input with an EOF (usually ^D or ^Z, depends on your implementation and OS). Also, if your implementation is slow it can take a while.

Use http://fr33ke.googlepages.com/jsbrainfuck.html (very strict and fast interpreter) if you still have problems.