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Does anyone know where to get more comprehensive Help on using Calculator.app? The Help files that do exist seems very thin. For example, how do I find the arctan of a number? There is no atan button in Scientific mode, yet under the Help topic there is a long lost of abbreviations used in the app, and it includes atan. What am I missing? Thanks!
Inverse Tangent
The inverse tangent (ATAN or ARCTAN) function is used by clicking on the "ATAN" button or type "ATAN()". The result is valid only from -pi/2 to pi/2.
see if this helps http://www.ecalc.com/
You are correct that the main display of scientific calculator does not have an arctan button. The button at the top left (with an upward pointing open arrow Icon) is s shift key, and shifts all the trig functions to corresponding inverse trig function, shown as e.g., tan-1
Thanks! I wonder why Apple doesn't mention this little detail in their Help files????
2016... It is now the "2nd" button near the top left... this can be accessed quickly with the shift key for "atan".
Good morning,
Know is the button 2nd at the top left side of the calculator.app.
It should be easier.
Help on using Calculator.app
