Manuals/calci/ATAN2

ATAN2(x,y)

Description

This function gives the inverse function of Tangent in trigonometry with two arguments (x,y).
Here the arguments $x\neq 0$ & $y\neq 0$ .
Also ATan2(x,y) is the angle between the x-axis and the point given by the co-ordinate (x,y) on it.
Where x is the x-coordinate point & y is the y-coordinate point.
The angle is positive for counter-clockwise angles (upper half-plane, y > 0), and negative for clockwise angles (lower half-plane, y < 0).
Also the angle is with in $-\pi$ to $\pi$
To find the angle in degrees, multiply the result angle with 180/PI().DEGREES function can also be used.