sine of an angle in degree mode

[Thomas Okken]

(01-26-2018 05:43 AM)cyrille de brébisson Wrote:  Hello,

All HP calcs use the same algo.
First, reduce the angle to 0/45°
Then transform to radian (inputs in degree mode are tested for special values such as 0, 360, 180, 90).
Use CORDIC
return results

Cyrille

You seem to be contradicting yourself.

What happens first, the angle reduction to 0° to 45°, or the check for special values? How do you check for 360°, 180°, 90° after reducing to 0°...45°?

Sorry to be a pest, but since a decent fraction of this thread was precisely about these kinds of details, your post doesn't actually clear anything up.