(Sept 22 1997)

The 1000 billionth binary digit of Pi is '1'.

(Oct 7 1996)

The 100 billionth (100*10^9) hexadecimal
digits of PI are : ** 9C381872D27596F81D0E48B95A6C46 **

(Jul 6 1996)

The 50 billionth (50*10^9) hexadecimal digits of PI are : **
1A10A49B3E2B82A4404F9193AD4EB6 **

An
article in the issue of January 1997 of * Pour la Science *
(french version of *Scientific American*) mentions this
record.

These calculus have been done and verified during the idle time of ten DEC Alpha stations. I have used the results of the paper "On the rapid computation of various polylogarithmic constants" by David Bailey, Peter Borwein and Simon Plouffe . I have used 144-bit arithmetic to achieve the precision needed. You can look at the Inverse Symbolic Calculator page the table of records of computation for some well-known constants . Simon Plouffe's home page contains many interesting links about pi.

** Warning ** : I have assumed that the first hexadecimal digit of
pi was ranked 0, e.g. if pi=(3.243F6A8...)_{16}, the third
digit of pi is "F".

I know this is not the right convention :)