2 Program 5.4 Ogata 4edition (response to unit-step input)

Laplace.T	Root-locus	Transient response	Frecuency response

2 Program 5.4 Ogata 4edition (response to unit-step input)

Let us draw the response to unit-step input by Scilab

$\begin{displaymath}G(s)=\frac{25}{(s^{2}+4 \cdot s+25)}\end{displaymath}$
Program in Scilab:
num=poly([25 0 0 ],'s','coeff');
den=poly([25 4 1],'s','coeff');
g=syslin('c',num/den);
t=0:0.005:3;
gs=csim('step',t,g);
clf;
plot2d(t,gs);
xgrid;

xtitle('Response to unit-step,G(s)=25/(s^2+4s+25)'
,'Time(seg)','Amplitude')
      