c63.m

matlab例程MATLAB 6.x版的内建数据类型（Built-in data type）就有5种以上

%c63.m
K=7
G1num=[0 0 K];G1den=[0 0 1];
G2num=[0 0 1];G2den=[1 8 0];
Hnum=[0 1];Hden=[0 1];
[Gnum,Gden]=series(G1num,G1den,G2num,G2den);
[Gnum_cl,Gden_cl]=feedback(Gnum,Gden,Hnum,Hden);
printsys(Gnum_cl,Gden_cl)