The case of the disappearing angle units, or "the dangle of the angle"

[Claudio L.]

(08-03-2019 08:51 PM)Albert Chan Wrote:  Under DEG mode, my guess is 90° = 90, not pi/2

thus SIN(INV(INV(90°))) = SIN(90) = 1, as expected

Correct...
And what do you expect for EXP(i*90°)?
And what about (90°-SIN(90°))*r^2/2?

It's really hard to get it to work consistently because the user expects different things from different expressions and the system has no way to distinguish them.