RADIANS function
Description
Radians function. RADIANS(x) converts an angle x expressed in degrees to radians.
The relation between the 2 units is as follows: 2 x Pi radians = 360 degrees.
The argument x can be a real number or a matrix. When it is a matrix, the function returns a matrix with the same dimensions and with the RADIANS function applied to all elements.
Examples
RADIANS(90) equals 1.5707963 (=Pi/2)