atan2 (y, x) returns the angle θ between the positive x -axis and the ray from the origin to the point (x, y), confined to (−π, π]. In computing and mathematics, the function atan2 is the 2- argument arctangent.

Dec 29, 2025 · The Math.atan2() method measures the counterclockwise angle θ, in radians, between the positive x-axis and the point (x, y). Note that the arguments to this function pass the y-coordinate …

Apr 3, 2023 · atan2(y, x) is equivalent to carg(x + I*y). POSIX specifies that in case of underflow, y / x is the value returned, and if that is not supported, an implementation-defined value no greater than …

ATAN2 (y, x) returns the arc tangent of the two numbers 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 …

P = atan2(Y,X) returns the four-quadrant inverse tangent (tan -1) of Y and X, which must be real. The atan2 function follows the convention that atan2(x,x) returns 0 when x is mathematically zero (either …

Jul 9, 2025 · The atan function calculates the arctangent (the inverse tangent function) of x. atan2 calculates the arctangent of y / x (if x equals 0, atan2 returns π/2 if y is positive, -π/2 if y is negative, …

Use our Atan2 Calculator to compute the arctangent of two variables (y, x) and find angles in radians or degrees for any coordinate.

Return the angle in radians of the polar coordinates given rectangular coordinates: The atan2() function returns the angle theta in radians from the conversion of rectangular coordinates (x, y) to polar …

The calculator displays atan2 function result in degrees, radians and graphically.

The function below uses atan2 () to convert a 2d vector expressed in cartesian coordinates (x, y) to the polar coordinates (rho, theta). There are other ways to compute the angle theta, using asin () acos (), …