UT3Frame.orthogonality_residual
===============================

.. py:method:: t3toolbox.uniform_frame_variations_format.UT3Frame.orthogonality_residual()

   .. code-block:: python

      def orthogonality_residual(self) -> NDArray:  # shape = stack_shape (scalar/0-d when unstacked)


   Max deviation of the (masked) frame supercores from orthonormality, **per stack element**
   (uniform analog of :py:attr:`~t3toolbox.frame_variations_format.T3Frame.orthogonality_residual`;
   masked-Gram over the four senses -- see
   :py:func:`~t3toolbox.backend.ufv_operations.ufv_frame_orthogonality_residual`). **cached**.