Casio fx-9750GII trigonometry calculation error check...

submitted by https://lemmy.world/u/over_clox

Yes, 355/113 is very close to π, but is not equal to π

So how does it get things ‘right’ for cos(355/113), but not right for sin(355/113)?

And why is the error of π-355÷113 exactly the same as the error of sin(355÷113)?

I sense some fuckiness of how they handle π