I remeber a LONG time ago (1981-1982), coming across a BASIC program that would calculate the value of Pi to a specific number of decimal places. It stored each 'digit' in an array element and then when the calculation was complete, just concatenated all of the digits. It was limited by memory size (how large you could dimension the array).
I know the need for a value of Pi to any more than 5 or 6 decimal places is probably overkill unless you are trying to aim a rocket at a star a few million light years from earth, but I recall it was kind of fun to have a sheet of paper filled with digits and telling everyone it was Pi to 1,200 decimal places (or whatever it was-back in the days of 64K RAM you were kind of limited).
Does anyone have a similar VB program laying around just gathering dust? As I recall, with my old system (it was even before the days of the IBM PC), it took almost 3 days to calculate Pi to whatever the limit was (as I recall, it was around 1,200 decimal places).