atan2 Method

Microsoft Office JScript

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Microsoft® JScript® atan2 Method  Language Reference 
Version 2 

See Also                  Applies To

Description
Returns the angle (in radians) from the X axis to a point (y,x).
Syntax
Math.atan2(y, x)

The atan2 method syntax has these parts:

Part Description
Math Required. Invokes the intrinsic Math object.
x Required. A numeric expression representing the cartesian x-coordinate.
y Required. A numeric expression representing the cartesian y-coordinate.

Remarks
The return value is between -pi and pi, representing the angle of the supplied (y,x) point.
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