function [numopen, denopen, denclsd]=pnetfdbk(num,den,s1)

% Hadi Saadat,  1998

discr=[
'                                                                         '
'  The function pntfdbkp(num, den, s1) is used for the design of a        '
'  passive network compensator placed in a minor feedback path.  num and  '
'  den are row vectors of polynomial coefficients of the uncompensated    '
'  open-loop plant transfer function and s1 =