  The present paper investigates state space analysis of memristor based series
and parallel RLCM circuits. The stability analysis is carried out with the help
of eigenvalues formulation method, pole-zero plot and transient response of
system. The state space analysis is successfully applied and eigenvalues of the
two circuits are calculated. It is found that the, system follows negative real
part of eigenvalues. The result clearly shows that addition of memristor in
circuits will not alter the stability of system. It is found that systems poles
located at left hand side of the S plane, which indicates stable performance of
system. It clearly evident that eigenvalues has negative real part hence two
systems are internally stable.
