# Tag Info

Accepted

### What is the practical advantage of root locus method in control system engineering?

You might find it interesting to know that the PID controller was around long before root locus. Root locus was so popular when it was first discovered because it was one of the first methods that ...
• 2,124

### How to calculate roots using root locus method?

You could use Newton's method. Yeah I know, it's not the "root locus method", but hey, it works. Let $F(s)=3s^4+10s^3+21s^2+24s+30$ Clean it up by dividing everything by 3 so our largest s is ...
• 7,989
Accepted

• 328
1 vote
Accepted

### Root Locus, Gain in Feedback Loop. Need help

No - the root locus is not drawn for the open-loop function. It is the main purpose of the root locus of a system with feedback to show if resp. for which constant gain values the CLOSED-LOOP ...
• 22.8k
1 vote

### Root Locus, Gain in Feedback Loop. Need help

When you are working with root locus, you are making a figure about your characteristic equation behavior. So, the root locus of a negative-feedback loop is going to be the same at any point of the ...
• 11

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