#Python has a built-in module that you can use for mathematical tasks. #Python 有一個內建模組，可用於數學任務。 #The math module has a set of methods and constants. #The math.atan2() method returns the arc tangent of ...

The atan2 function computes the polar angle arctan(y/x) of a point given by its cartesian coordinates. It is widely used in digital signal processing to recover the phase of a signal. This article ...