Long chains of Pi number

Question

How to get the firts 1000 decimal digits of Pi. I know about some algorithms like this: https://crypto.stanford.edu/pbc/notes/pi/code.html but still work only until the 800 decimal number. Any one has an idea?

Answer 1

If you study some of the codes posted here, you might find ideas and clues for algorithms to calculate PI
https://www.sololearn.com/post/237769/?ref=app