Stoneham's series

[Johnh]

....further on this, I put it into Free42, similar code that I posted above, with a 'View' line added to monitor the convergence towards Pi. I let it run 30 minutes, by which time it had completed 84 million loops, which is more than twice as many per minute as the Jovial hp15 sim!

The first 4 or 5 decimal places are almost instant, and when I stopped it it was at 3.14159266291 and counting down maybe one digit every few seconds in the 11th decimal place, slowing down exponentially, with an error of one digit remaining in the 8th decimal place. Maybe itd get that one given long enough, or maybe the accumulation of rounding error would throw it off.

I was very impressed with the Free42 App, my first time coding in it. Nice and clear and simple but powerful with handy alpha-numerics, and really great performance.

All more interesting than what I'm supposed to be doing this Saturday afternoon (marking engineering exams...yuk!)