%Tan Nguyen, Trang Pham, Nhan Phan
%ECE 460 
%WINTER 2003
%Project I
%Part I without a controller D(s)
clc
clear
t=[0:0.01:4];
num=[12.12];
den=[1 4.127 12.12];
sys=tf(num,den);
ys=step(sys,t);
pzmap(num,den);
title('The Pole-zero Map of Part I without the Controller');
grid on
[p,z]=pzmap(num,den)

p =
  -2.0635 + 2.8039i
  -2.0635 - 2.8039i

z =
   Empty matrix: 0-by-1