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A=[-1 0;0 -2];
B=[0;1];
[r c]=size(A)
I=eye(r,c)
P=cont_mat(A,B);
disp(P,"Controllability Matrix=")
d=det(P)
if d==0
printf("matrix is singular, so system is uncontrollable");
else
printf("system is controllable");
end;
C=[1 2];
P=obsv_mat(A,C);
disp(P,"Observability Matrix=");
d=det(P)
if d==0
printf("matrix is singular, so system is unobservable");
else
printf("system is observable");
end;
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