Using Jury’s test, determine the stability of a discrete-time system whose characteristic polynomial is given by:
Q(z) = z4+ 6z 3+ 4z 2+ 2z + 1= 0 (You may benefit by watching this video)
Find all the critical points of the nonlinear system
áº‹ =x- y- x2 +xy
áºŽ = -x2 – y
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