Note: finding arbitrary digits of pi doesn't require finding the preceding digits. It's kind of freaky. https://en.wikipedia.org/wiki/Bailey%E2%80%93Borwein%E2

Note: finding arbitrary digits of pi doesn't require finding the preceding digits. It's kind of freaky. 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...