13 Problem A6.14 OGATA 4edition(root locus) Let us calculate the root-locus of a closed-loop system with feedback by Scilab, whose transfer function in open loop is: Program in Scilab s=%s; num=(s+2); den=(s^3+9*s^2+8*s); g=syslin('c',num/den); clf; evans(g); sgrid([0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9] ,[1 2 3 4 5 6 7 8],23); v=[-8 4 -6 6] mtlb_axis(v);
s=%s; num=(s+2); den=(s^3+9*s^2+8*s); g=syslin('c',num/den); clf; evans(g); sgrid([0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9] ,[1 2 3 4 5 6 7 8],23); v=[-8 4 -6 6] mtlb_axis(v);
