I'm in @standupmaths's π day video as part of the team failing to reproduce local hero William Shanks's by-hand approximation of π: youtube.com/watch?v=dtiLxL…
@standupmaths and following that Herculean effort, I spent some #UCUStrike days implementing the streaming digits algorithm I talk about in that video, in my calculator.
It turns out it's called constructive real arithmetic, and your android calculator already does it: twitter.com/aperiodical/st…