Transfer function: 200 s^2 + 100 s-------------------------s^3 + 9 s^2 + 108 s + 100 >> bode(G)

>> nyquist(G)

>> bode(G)>> G1=tf([8 24 16], [1 12 32 0]) Transfer function: 8 s^2 + 24 s + 16-------------------s^3 + 12 s^2 + 32 s >> bode(G1)

>> nyquist(G1)

G2=tf([10000 100000], [1 101 10100 10000])

Transfer function: 10000 s + 100000-------------------------------s^3 + 101 s^2 + 10100 s + 10000 >> bode(G2)

>> nyquist(G2)