h2norm

% -*- texinfo -*-
% @deftypefn {Function File} {} h2norm (@var{sys})
% Computes the 
% @iftex
% @tex
% $ { \cal H }_2 $
% @end tex
% @end iftex
% @ifinfo
% H-2
% @end ifinfo
% norm of a system data structure (continuous time only).
%
% Reference:
% Doyle, Glover, Khargonekar, Francis, @cite{State-Space Solutions to Standard} 
% @iftex
% @tex
% $ { \cal H }_2 $ @cite{and} $ { \cal H }_\infty $
% @end tex
% @end iftex
% @ifinfo
% @cite{H-2 and H-infinity}
% @end ifinfo
% @cite{Control Problems}, @acronym{IEEE} @acronym{TAC} August 1989.
% @end deftypefn