I would like to include two grid lines on my root locus. Essentially, I would like to show the bounds of 'good' gain values which occur between two zeta values.
Ideally the code would look simply as:
rlocus(sys)sgrid(z1,0)sgrid(z2,0)
And both of zeta grid lines would appear. However this does not work. //I would appreciate any help. Thanks.
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