def emit_measured(self):
        """
        The beam emittance :math:`\\langle x x' \\rangle`.
        """
        return _np.sqrt(self.spotsq*self.divsq-self.xxp**2)
def emit_measured(self):
        """
        The beam emittance :math:`\\langle x x' \\rangle`.
        """
        return _np.sqrt(self.spotsq*self.divsq-self.xxp**2)
def emit_measured ( self ) : return _np . sqrt ( self . spotsq * self . divsq - self . xxp ** 2 )
The beam emittance :math:`\\langle x x' \\rangle`.
The beam emittance : math : \\ langle x x \\ rangle .