[taeric]

I am a little confused. My assertion is that most languages don't offer fixed point trig functions. Am I wrong on that assertion?

If you have the trig functions already implemented for the fixed point you are doing, what you are saying makes perfect sense to me. But I swear I get challenged on that point every time it comes up, as nobody has a fixed point trig library. (Well, that seems to be the assertion.)

[addaon]

Fixed-point CORDIC is not hard… but a trivial implementation will be slower than a hardware float implementation, true. Several of the micros I work on have a CORDIC accelerator on a (usually only one) low-latency core designed for BLDC control etc, but that’s neither universal, nor general, of course.