Arc Cosine

Returns the arc cosine of a given number as an angle. This angle is calculated in radians and falls between 0 and p. To convert radians to degrees, multiply by 180/p. This is a single-value function.

Syntax

Acos(Argument)

Where:

Argument is a metric representing a list of real numbers. The values are the values of the cosine for the angles sought. This value must be between -1 and 1.