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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