#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 ...

SSE2 implementations of sin, cos, exp, log, tan, cot, atan, atan2 The sin, cos, exp and log functions were written by Julien Pommier (see unmodified sse_mathfun.h). The tan, cot, atan, atan2 are ...