Algorithm accuracy vs calculator precision

[Commie]

(11-12-2024 08:58 PM)Thomas Klemm Wrote:  The classic HP calculators use the CORDIC algorithm.
The main reason was that only addition and shift was available.

Ha, I was waiting for someone to pull me up with cordics, I have studied cordics extensively and put it head to head against poly's and the end results are more or less the same, in fact, poly's are faster unless you are using fpga based on shift add logic, there is no benefit using cordics over poly's.

Cordics in a microcontroller are slow but use less code(many iterations), poly's are faster but use greater code length.

Cheers
Darren