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Calculate the arctangent of unsigned and signed fixed-point input values. The first example uses unsigned, 16-bit word length values. The second example uses 15 Jan 2016 We hope you are having a good time and learning a lot already! experience programming with MATLAB or Octave is recommended (we From the lesson The atan2 function is an adaptation of the atan function that takesThe function atan2 ? ( y , x ) {displaystyle operatorname {atan2} (y,x)} {displaystyle operatorname {atan2} (y,x)} or arctan2 ? ( y , x ) {displaystyle operatorname {arctan2} (y,x)} {displaystyle operatorname {arctan2} (y,x)} (from "2-argument arctangent") is defined as the angle in the Euclidean It was originally intended to return a correct and unambiguous 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 atan2 (MATLAB Functions) P = atan2(Y,X) returns an array P the same size as X and Y containing the element-by-element, four-quadrant inverse tangent (arctangent) of the real parts of Y and X. The elements of P are in the interval . atan uses sign(Y) and sign(X) to determine the specific quadrant. The atan function simply computes the inverse tangens of a value. The atan2 function takes two values (y and x). This function is used to convert from cartesian The quadrant (i.e., branch) is chosen so that arctan2(x1, x2) is the signed angle in radians between the ray ending at the origin and passing through the point (1 22 Jan 2016 atan2(Y,X) computes the four-quadrant inverse tangent (arctangent) of Y and X. If Y and X are vectors or matrices, atan2 computes arctangents element by element. Calling atan2 for numbers (or vectors or matrices of numbers) that are not symbolic objects invokes the MATLAB® atan2 P = atan2( Y , X ) returns the four-quadrant inverse tangent (tan-1) of Y and X In contrast, atan(Y/X) returns results that are limited to the interval [-pi/2,pi/2]