util.Math.atan
Computes the arc tangent of the passed value, measured in radians.
Syntax
util.Math.atan(
x FLOAT )
RETURNS FLOAT
- x is a floating point decimal value.
Usage
The function returns the principal value of the arc tangent of x in radians.
The return value is in the range [-PI/2, PI/2].
The function returns NULL
, if the provided argument is invalid.