NUnurettin·Nov 11, 2023
I think an earlier version of this algorithm was implemented as a showcase in one of the corman lisp for windows 16bit examples folder. I was astonished watching it print thousands of digits of pi in under a minutes.
edit: it was just atan https://github.com/sharplispers/cormanlisp/blob/master/examp...
In Computation of the n'th digit of pi in any base in O(n^2) (1997)