MySQL ATAN2() Function

Return the arc tangent of two values

Definition and Usage

The ATAN2() function returns the arc tangent of two numbers.

Syntax

ATAN2(a, b)

Parameter Values

Parameter Description
a, b Required. Two numeric values to calculate the arc tangent of

Technical Details

Works in: From MySQL 4.0

More Examples

Example

Return the arc tangent of two values:

SELECT ATAN2(-0.8, 2);