Re:How Many Decimals of Pi Do We Really Need? (2016)
by taylodl on Monday September 28, 2020 @12:50PM
(#24618642)
It'd be interesting to see their implementation and the trade-offs its designers made.
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Re:How Many Decimals of Pi Do We Really Need? (2016)
by kens on Monday September 28, 2020 @01:24PM
(#24619051)
I'm glad you asked :-) I reverse-engineered the Sinclair Scientific calculator, documented its code, and built a simulator: http://files.righto.com/calculator/sinclair_scientific_simul...
The short answer is that they used a 4-function calculator chip with just 320 words of ROM and managed to reprogram it into a cheap scientific calculator, a remarkable feat. The tradeoff was that the calculator was very slow and inaccurate.