UniformCorewiseGeometry.retract
===============================

.. py:method:: t3toolbox.uniform_manifold.UniformCorewiseGeometry.retract(p)

   .. code-block:: python

      def retract(
              self,
              p:  UT3Tangent,   # step (a corewise tangent at frame = (U, G, G, G))
      ) -> ut3.UniformTuckerTensorTrain:  # additive retraction: cores += p


   Additive retraction: add the variation supercores to the point's cores (``cores += p``).

   Recovers the point ``(U, G)`` from ``p.frame`` (which :py:meth:`frame` built as ``(U, G, G, G)``) and
   adds the variations. ``p`` must be a corewise tangent (a frame from :py:meth:`frame`). See
   :py:func:`~t3toolbox.backend.utv_operations.utv_corewise_retract`.