Hi,
I'm trying to find the key to press on the iPhone scientific calculator to give me the inverse of sin, cos & tan. On most scientific calculators there is an inv key which you press before sin, cos or tan to give you the inverse. Other calculators have keys for arcsin arccos arctan. The iphone scientific calculator has neither. I've tried the In key and also the sinh etc none of which give me the correct answer. Try it - I know the inverse sin of 0.5 is 30, but I can't get that answer on the iphone scientific calculator 😞
Thanks
Steve
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Aha!
Just found it. Press the '2nd' button and that changes the sin, cos & tan to their inverse!.
I'm sure someone was just about to tell me that!
Just found it. Press the '2nd' button and that changes the sin, cos & tan to their inverse!.
I'm sure someone was just about to tell me that!
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Press 2nd key top left
