p146_1.m

matlab仿真的文件包然后写出其具体功能(至少要20个字)。尽量不要让站长把时间都花

wn=1; z=0.1; b=[0.1,0.2,0.5,1];
for i=1:length(b)
   G=tf(wn^2*[1,b(i)],[1,2*z*wn,0]);
   rlocus(G); hold on
end