UT3Tangent.tangent_space_dimension
==================================

.. py:method:: t3toolbox.uniform_manifold.UT3Tangent.tangent_space_dimension()

   .. code-block:: python

      def tangent_space_dimension(self):  # int (unstacked) or int array of shape = frame stack C


   Dimension of the tangent space at this base point (= the fixed-rank manifold dimension),
   **per frame-stack element** ``C`` (the ``K`` vectors share the frame, hence the same tangent space).

   An ``int`` when unstacked (``C == ()``), else an int array of shape ``C``. Computed from the
   structurally-minimal ranks (gauge already quotiented); see
   :py:func:`~t3toolbox.backend.ranks.compute_manifold_dim`. Masks are host numpy, so the ranks --
   and this dimension -- are host quantities (a small loop over the frame stack, computed once).