atan2
atan2
Arc tangent of two variables
float **atan2** float $y float $x
This function calculates the arc tangent of the two variables
and . It is
similar to calculating the arc tangent of
/ , except that
the signs of both arguments are used to determine the quadrant of
the result.
x``y``y``x
The function returns the result in radians, which is between -PI and PI (inclusive).
yDividend parameter
xDivisor parameter
The arc tangent of /
in radians.
y``x
atan