ATAN2
Two-argument arc tangent function. Calculates the angle, in radians, between the specified positive x-axis value and the ray from the origin to the point (y,x), where x is a number of type DOUBLE returned by the expression <x_expr>, and y is a number of type DOUBLE returned by the expression <y_expr>. Returns the radians as type DOUBLE.
Syntax
ATAN2(<y_expr>,<x_expr>)
| Parameter | Description |
|---|---|
<y_expr> | Any expression that evaluates to a number of type DOUBLE. |
<y_expr> | Any expression that evaluates to a number of type DOUBLE. |
Example
SELECT ATAN2(11,3);
Returns: 1.3045442776439713