ATAN2

Description

Returns the arc tangent of 'y' / 'x'.

Syntax

ATAN2(<y>, <x>)

Parameters

Parameter	Description
<x>	The value representing the horizontal distance (coordinate) from the origin (0,0) along the x-axis.
<y>	The value representing the vertical distance (coordinate) from the origin (0,0) along the y-axis.

Return Value

The atan2 value of parameter y / x.

Example

select atan2(0.1, 0.2);

+---------------------+
| atan2(0.1, 0.2)     |
+---------------------+
| 0.46364760900080609 |
+---------------------+

select atan2(1.0, 1.0);

+---------------------+
| atan2(1.0, 1.0)     |
+---------------------+
| 0.78539816339744828 |
+---------------------+