It is difficult to form Liapunov’s function for:
(a) Linear system
(b) Non-linear
(c) Time variant systems
(d) Time –invariant systems
I got this question by my school teacher while I was bunking the class.
Asked question is from The Direct Method and Constructing of Liapunov for the Linear and Non-Linear System topic in portion Liapunov’s Stability Analysis of Control Systems