atan2()

Returns the arctangent of the quotient of two given numbers, considering the quadrant of the result.

atan2(y, x)

• The angle in radians between the positive x-axis and the point (x, y).
• The result is in the range [-π, π].

atan2(0, 1);    // returns 0

atan2(1, 0);    // returns pi()/2

atan2(-1, -1);  // returns -3*pi()/4

pi
sin
asin
cos
acos
tan
atan
atan2
rad2deg
deg2rad