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HP-35: Sin and cos function formulas, another point of view
08-16-2018, 08:46 AM (This post was last modified: 08-16-2018 09:00 AM by sasa.)
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sasa Offline
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RE: HP-35: Sin and cos function formulas, another point of view
(08-15-2018 03:57 AM)Albert Chan Wrote:  Newton's method for 1/sqrt(N) avoided the expensive division
...

Due extreme space limitation, I'm almost certain it is used implemented sqrt and reciprocal routine.

https://archived.hpcalc.org/laporte/Trigonometry.htm

Trace log for cos(x):
https://archived.hpcalc.org/laporte/cos_run.txt

Complete ROM listing:
https://archived.hpcalc.org/laporte/HP35%20ROM.htm
https://archived.hpcalc.org/laporte/hp35.asm
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RE: HP-35: Sin and cos function formulas, another point of view - sasa - 08-16-2018 08:46 AM



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