How can I compute x to the power of y?

It's ^ operator on the Second keyboard or double press × or *.

Where can I see square root (or n-th root) and trigonometric functions?

On the Second keyboard. Move the primary button panel to the left or press ... button (it depends on settings).

Why it does not return correct -1 result for expression cos(π)?

You should switch trigonometric units to Radians (use →RAD on Second keyboard).

Why expression time:23.00+2.00 gives 25.00 but not 1.00?

You should switch time calculation method to Diurnal time method in Settings.

How can I clear the memory?

It's MC (press and hold button C).


If you still have questions about the calculator please use the Feedback in Settings.