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Programa en 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); for k1=0.2:0.2:20, gl=1+k1*g; numl=numer(gl); r=roots(numl); x=real(r); y=imag(r); plot(x,y,'o'); end; for k2=20.02:0.2:30, g2=1+k2*g; num2=numer(g2); r2=roots(num2); x2=real(r2); y2=imag(r2); plot(x2,y2,'o'); end; for k3=35:5:1000, g3=1+k3*g; num3=numer(g3); r3=roots(num3); x3=real(r3); y3=imag(r3); plot(x3,y3,'o'); end; v=[-20 20 -25 25]; mtlb_axis(v) xgrid;
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