Root locus matlab

1. What is root locus in Matlab?
2. What is the correct command for plotting the root locus plot in Matlab?
3. How do you get root locus in Simulink?

What is root locus in Matlab?

The root locus returns the closed-loop pole trajectories as a function of the feedback gain k (assuming negative feedback). Root loci are used to study the effects of varying feedback gains on closed-loop pole locations. In turn, these locations provide indirect information on the time and frequency responses.

What is the correct command for plotting the root locus plot in Matlab?

[r,k] = rlocus(sys) returns the vector of feedback gains k and the complex root locations r for these gains. r = rlocus( sys , k ) uses the user-specified vector of feedback gains k to output the closed-loop poles r that define the root locus plot.

How do you get root locus in Simulink?

In the Root Locus Editor, right-click the plot area and select Edit Compensator. In the Compensator Editor dialog box, specify a gain of 20 . In the Root Locus Editor plot, the closed-loop pole locations move to reflect the new gain value. Also, the Step Response plot updates.