%
% Example 7.17 and Figure 7.2
%
num=[1 2 3];
den=[1 1.5 0.75 0.125];
h=dimpulse(num,den)
kf=length(h)
k=0:1:kf-1
plot(k,h,'*')
grid
xlabel('discrete time k')
ylabel('impulse response')
print -deps fig7_2.eps