% -*- texinfo -*-
% @deftypefn {Function File} {@var{W} =} wgt1o (@var{vl}, @var{vh}, @var{fc})
% State space description of a first order weighting function.
%
% Weighting function are needed by the
% @iftex
% @tex
% $ { \cal H }_2 / { \cal H }_\infty $
% @end tex
% @end iftex
% @ifinfo
% H-2/H-infinity
% @end ifinfo
% design procedure.
% These functions are part of the augmented plant @var{P}
% (see @command{hinfdemo} for an application example).
%
% @strong{Inputs}
% @table @var
% @item vl
% Gain at low frequencies.
% @item vh
% Gain at high frequencies.
% @item fc
% Corner frequency (in Hz, @strong{not} in rad/sec)
% @end table
%
% @strong{Output}
% @table @var
% @item W
% Weighting function, given in form of a system data structure.
% @end table
% @end deftypefn