(self)
return self._time_period
Returns the time period 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.time_period
        1/f
Returns the time period of the wave.
Returns the time period of the wave .
def time_period(self):
        """
        Returns the time period 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.time_period
        1/f
        """
        return self._time_period
def time_period ( self ) : return self . _time_period