Atan2

Description of formula:
Calculates the arctangent of a quotient of two specified numbers. Arctangent is the angle from the x-axis to a line containing the origin (0,0) and a point with coordinates (x,y). The returned value is given in radians, in range from –π to π.
Syntax:
atan2(y, x)
Parameters:
y
(type: Number) The y coordinate of a point
x
(type: Number) The x coordinate of a point
Returned type:
Number
Examples:
=atan2(-1,-1)
=atan2(Section1.A1,1)
=atan2(A,1)
=atan2(B3,B4)
Remarks:
If you want to get value in degrees, multiply the result by 180/pi().
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