% 
% Example 8.5 and Figure 8.1
%
A=[-1 0 0; 0 -2 0; 0 0 -3];
B=[1;1;1];
C=[6 -6 1];
D=0
[y,x,t]=step(A,B,C,D);
plot(t,x)
xlabel('time [s]')
ylabel('state step response')
grid
text(2.2,0.28,'x3')
text(2.2,0.46,'x2')
text(2.2,0.85,'x1')
print -deps fig8_1.eps