ATAN2 Function

Description

The ATAN2 function returns the arc tangent value of y/x in radian. This function is working like the ATAN Function. Arguments x and y must be specified. The return value is a DOUBLE type.

Syntax

ATAN2 ( y, x )

Example

SELECT ATAN2(1,1), ATAN2(-1,-1), ATAN2(Pi(),0);

 

atan2(1, 1)             atan2(-1, -1)           atan2( pi(), 0)

==============================================================================

 7.853981633974483e-01    -2.356194490192345e+00     1.570796326794897e+00