util.Math.atan

Computes the arc tangent of the passed value, measured in radians.

Syntax

util.Math.atan(
   x FLOAT )
  RETURNS FLOAT
  1. 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.