topic Re: arcsin etc on iPhone scientific calculator in Apple

arcsin etc on iPhone scientific calculator

Anonymous — Wed, 03 Apr 2019 10:20:50 GMT

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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Re: arcsin etc on iPhone scientific calculator

Anonymous — Sun, 23 Jan 2011 22:50:48 GMT

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!

Re: arcsin etc on iPhone scientific calculator

adamtemp64 — Sun, 23 Jan 2011 22:53:14 GMT

Press 2nd key top left

Re: arcsin etc on iPhone scientific calculator

Anonymous — Sun, 23 Jan 2011 22:59:34 GMT

Press 2nd key top left

Thanks adamtemp64. Looks like you were posting as I found it. Appreciate the swift response in any case.