ATAN2

Syntax:

ATAN2 ( x , y )

Description: Computes the arc tangent of the coordinates x and y.

Arguments:

Name	Type	Description
x	number	The first coordinate.
y	number	The second coordinate.

 

Return Type and Value: number – The arc tangent of x.

However, if both x and y are zero, #DIV/0! is returned.

[Example:

ATAN2(1,1) results in 0.785398163
ATAN2(-2,2) results in 2.35619449
ATAN2(3,-3) results in -0.785398163

end example]