t3_plus_scalar
==============

.. py:function:: t3toolbox.backend.t3_linalg.t3_plus_scalar(x, s)

   .. code-block:: python

      def t3_plus_scalar(
              x: typ.Tuple[typ.Sequence[NDArray], typ.Sequence[NDArray]],  # (tucker_cores, tt_cores)
              s,  # scalar
      ) -> typ.Tuple[
          typ.Tuple[NDArray, ...],  # tucker_cores of x + s
          typ.Tuple[NDArray, ...],  # tt_cores of x + s
      ]:


   Add a scalar to a Tucker tensor train: ``(x + s).to_dense() == x.to_dense() + s``.