The arguments for the trig functions are in radians.
To convert degrees to radians, multiply by 0.017453293 (2pi/360).
(You can/may copy&paste that number into the calculator window, or use the button.)

You can compute the base-10 and base-2 logarithms of a number with
the following formulas: [log10(x) = LOG10e * nlog(x)] [log2(x) = LOG2e * nlog(x)]