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Laplace.T Root-locus Transient response Frecuency response
       
 
 
 

2 Program 6.2 OGATA 4edicion (root locus)




Let us calculate the root-locus of a closed-loop system with feedback by Scilab, whose transfer function in open loop is:

\begin{displaymath}G(s)=\frac{K}{(s^{4}+1.1\cdot s^{3}+10.3\cdot s^{2}+5\cdot s)}\end{displaymath}

Program in Scilab
num=poly([1 0 0 0 0],'s','coeff');
den=poly([0 5 10.3 1.1 1],'s','coeff');
g=syslin('c',num/den);
clf;
evans(g);
v=[-6 6 -6 6];
mtlb_axis(v)
xgrid

 


Image Programa6_2