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Returns the arctangent of the given X and Y coordinate values. The angle value of the arctangent is equal to the X-axis and the straight line passing through the origin and the given coordinate point (X coordinate, Y coordinate)
The angle between. The result is expressed in radians and is between -pi and pi (excluding -pi).
Syntax
ATAN2 (X coordinate, Y coordinate)
X coordinate of the X coordinate point.
Y coordinate Y coordinate of the point.
Description
￭A positive result indicates a counterclockwise rotation angle from the X-axis, and a negative result indicates a clockwise rotation angle from the X-axis.
￭ATAN2(a, b) is equal to ATAN (b/a), unless a is zero.
￭ If both the X coordinate and Y coordinate are Zero, ATAN2 returns the error value #Div/0!.
￭ To express the arctangent value in degrees , please multiply the result by 180/PI( ) or use the DEGREES function.
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