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I am trying to draw the Nyquist plot of this transfer function

2 (s+1) / (s (s+10)^4)

This is my code:

NUM2 = [2 2];
DEN2 = [5 40 600 4000 10000 0];
FT2 = tf(NUM2,DEN2) 
fprintf ('\n Nyquist\n')
figure(2)
nyquist(FT2)

This is the result:

enter image description here

This is what I draw by hand

enter image description here

What is wrong with my code?

David
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