https://docs.vultr.com/clang/s....tandard-library/math

math.h atan2 In C, the atan2(y, x) function from math.h computes the arc tangent of y/x, considering the signs of both arguments to determine the correct quadrant.

In Java, you can use Math.atan2(y, x), which works the same way. It returns the angle in radians between the positive x-axis and the point (x, y).