arhnk(1)

NAME
arhnk - Hankel norm approximant

CALLING SEQUENCE
[slm]=arhnk(sl,ord,[tol])

PARAMETERS

sl  : linear system (syslin list)

ord : integer, order of the approximant

tol : threshold for rank determination in equil1

DESCRIPTION
computes slm, the optimal Hankel norm approximant of the continuous-time linear system sl=[A,B,C,D].

SEE ALSO
equil, equil1