%Tan Nguyen, Trang Pham, Nhan Phan
%ECE 460 
%WINTER 2003
%Project I
%Part II with a controller D(s)
clc
clear
t=[0:0.01:2];
num=[80.4184];
den=[1 12.3753 80.4184];
sys=tf(num,den)
ys=step(sys,t);
plot(t,ys)
title(' Step Response of Part II with the Controller D(s)');
xlabel('Time in second');
ylabel('Magnitude');
grid on
[tp,os,ts]=tposts(t,ys)

Transfer function:
        80.42
---------------------
s^2 + 12.38 s + 80.42
tp =
    0.4800
os =
    0.0500
ts =
    0.6700
