xcat
====

.. py:function:: t3toolbox.backend.common.xcat(x, y)

   .. code-block:: python

      def xcat(
              x: typ.Union[NDArray, typ.Sequence],  # array (concat on axis 0) or sequence (concat as tuples); same kind as y
              y: typ.Union[NDArray, typ.Sequence],  # same kind as x
      ) -> typ.Union[NDArray, typ.Tuple]:           # x and y concatenated


   Concatenate arrays or sequences.