3 ms·

This is explained in the second paragraph: > Yee independently verified the calculation using Bellard's formula[0] and BBP formula[1] [0] https://en.wikipedia

This is explained in the second paragraph: > Yee independently verified the calculation using Bellard's formula[0] and BBP formula[1] [0] https://en.wikipedia.org/wiki/Bellard%27s_formula https://en.wikipedia.org/wiki/Bellard%27s_formula [1] https://en.wikipedia.org/wiki/Bailey%E2%80%93Borwein%E2%80%93Plouffe_formula https://en.wikipedia.org/wiki/Bailey%E2%80%93Borwein%E2%80%9...

audiometry 8y ago
Disappointed the Wikipedia article didn’t explain how in the world they arrived at that formula, why it even works. This type of stuff is pure magic to me.
- aboutruby 8y ago
  There is a proof linked from the Wikipedia article: https://www.davidhbailey.com/dhbpapers/digits.pdf https://www.davidhbailey.com/dhbpapers/digits.pdf
- mhh__ 8y ago
  https://bellard.org/pi/pi_bin.pdf https://bellard.org/pi/pi_bin.pdf