tv_stack_tangent_stack
======================

.. py:function:: t3toolbox.backend.tv_operations.tv_stack_tangent_stack(variations_tree)

   .. code-block:: python

      def tv_stack_tangent_stack(
              variations_tree,  # array-like tree (shape V) of variations-data tuples (each stack = G)
      ):  # -> variations-data tuple (stack = V + G)


   Stack a V-shaped tree of variation-data over the tangent stack V (outermost).

   Inverse of :py:func:`tv_unstack_tangent_stack`.