ATAN

Calculates the arctangent of a value in radians.

Syntax

ATAN(<value>)

Parameters

Parameter	Description	Supported input types
<value>	The number that the arctangent function is applied to.	DOUBLE PRECISION

Return Type

ATAN returns a value of type DOUBLE PRECISION.

Example

The following query calculates the arctangent of 1:

SELECT ATAN(1) as result;

Returns

result (DOUBLE PRECISION)
0.7853981633974483