Type
Trigonometric Function

Purpose
The atan2 function calculates the arctangent of Value 1 divided by Value 2
The result is an angle expressed in radians between -p and p.

Syntax
atan2( NUMERIC VALUE 1, NUMERIC VALUE 2)

Returns
A numeric value.

Usage
The numeric value in a Trigonometric function can be a constant value (as shown below), a variable, a field value or an expression.

Examples
atan2(3,127)
Returns:0.02361766

atan2(1, 1)
Returns:0.7854