t3_to_vector
============

.. py:function:: t3toolbox.backend.t3_conversions.t3_to_vector(x)

   .. code-block:: python

      def t3_to_vector(
              x: typ.Tuple[typ.Sequence[NDArray], typ.Sequence[NDArray]],  # (tucker_cores, tt_cores)
      ) -> NDArray: # shape=(x_size,)


   Converts T3 to a 1D vector containing all of the core entries.