This function calculates the arc tangent of the two variables $x and $y. It is similar to calculating the arc tangent of $y / $x, except that the signs of both arguments are used to determine the quadrant of the result.

The function returns the result in radians, which is between -PI and PI (inclusive).

declaration of atan2

float atan2 ( float $y , float $x )

test atan2 online

share atan2

comments for atan2

be the first

No comments so far for atan2(). Leave yours as first below.


Leave your comment