waves.py 文件源码

def angular_velocity(self):
        """
        Returns angular velocity of the wave.

        Examples
        ========

        >>> from sympy import symbols
        >>> from sympy.physics.optics import TWave
        >>> A, phi, f = symbols('A, phi, f')
        >>> w = TWave(A, f, phi)
        >>> w.angular_velocity
        2*pi*f
        """
        return 2*pi*self._frequency