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ROOT LOCUS PLOT
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The Root Locus Plot is a graphical method to draw the trajectories of the roots of a polynomial on the complex plane when a parameter varies. The places of the roots on the complex plane indicate the stability of systems according to different stability criteria. If you want to review stability definitions go to Learning Object Stability Concepts Used in the Study o LTIS.
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This method is used for closed loop systems and it allows to draw the places that the roots of a polynomial as functions of a varying parameter of the system implementation. The computation of the closed loop transfer function is not necessary as long as the open loop transfer function is known. Since it draws the trajectories of the roots on the complex plane, it can be used for both continous and discrete time systems. The critical regions are diferent though.
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The simulations of the Root Locus Plot are performed online and in real time usin Scilab (https://www.scilab.org/). Scilab is connected to the Maxwell System so that it executes its functions using this system as its front end to the Internet.
What is Scilab? See the answer to this question of the Scilab page https://www.scilab.org/about.
What is Scilab?
Scilab is a free and open source software for engineers & scientists, with a long history (first release in 1994) and a growing community (100 000 downloads every months worldwide).
Scilab is available under de GPL License . What does it mean? You have the freedom to:
* use the software for any purpose
* change the software to suit your needs,
* share the software with your friends and neighbors, and
* share the changes you make.
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