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.

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

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 0 or -0 ).

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 result.

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Calculate the ATAN2 function with precision using X and Y coordinates. Easily determine the angle between the positive x-axis and the ray from the origin to the point (x, y) with this ATAN2 calculator.

Returns the arctangent, or inverse tangent, of the specified x- and y-coordinates. The arctangent is the angle from the x-axis to a line containing the origin (0, 0) and a point with coordinates (x_num, y_num). The angle is given in radians between -pi and pi, excluding …

Nov 5, 2015 · atan2. Atan2 is nothing else just more comfortable version for atan. Result of atan2 returns angle between vector v from the “angular start” on unit circle. Picture is worth thousand words. Compare what angles in radians is returned by atan(x,y) compared to atan2(x,y)

The calculator gives an angle between positive axis x and the ray to the given point from point 0. The result corresponds to atan2 function, implemented in many computer languages and math libraries.

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