sysadd

% -*- texinfo -*-
% @deftypefn {Function File} {}  sysadd (@var{gsys}, @var{hsys})
% returns @var{sys} = @var{gsys} + @var{hsys}.
% @itemize @bullet
% @item Exits with
% an error if @var{gsys} and @var{hsys} are not compatibly dimensioned.
% @item Prints a warning message is system states have identical names;
% duplicate names are given a suffix to make them unique.
% @item @var{sys} input/output names are taken from @var{gsys}.
% @end itemize
% @example
% @group
%           ________
%      ----|  gsys  |---
% u   |    ----------  +|
% -----                (_)----> y
%     |     ________   +|
%      ----|  hsys  |---
%           --------
% @end group
% @end example
% @end deftypefn