

 Contents
 1 Program 6.1 OGATA 4edition (root locus)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (evans, mtlb_axis, syslin)
 2 Program 6.2 OGATA 4edicion (root locus)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (evans, mtlb_axis, syslin)
 3 Program 6.3 OGATA 4edition (root locus)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (syslin, numer, roots, real, imag, mtlb_axis)
 4 Program 6.5 OGATA 4edition (root locus, damping ratios, undamped natural frecuency)
We will draw polar grids in rootlocus by a Scilab (sgrid) with the damping ratios 0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9 and undamped natural frecuency 1,2.
 5 Program 6.6 OGATA 4edition (root locus, damping ratios, undamped natural frecuency)
Let us calculate the rootslocus with indication of damping ratio 0.5,0.707 and not damped natural frequency 0.5, 1 and 2 by Scilab (evans, sgrid, syslin), a closed loop system with feedback unit
 6 Program 6.7 OGATA 4edicion (root locus, damping ratio)
Let us calculate the rootslocus with indication of damping ratio 0.5 by Scilab (evans, mtlb_axis, syslin), a closed loop system with feedback unit
 7 Program 6.8 OGATA 4edicion (root locus, damping ratio)
Let us calculate the rootlocus with indication of damping ratio 0.5 and asked to mark a point in the place and get the gain K and the poles of closeloop by Scilab (evans, mtlb_axis, syslin, locate, real, horner, numer, roots) of a system with closed loop with feedback unit
 8 Program 6.9 OGATA 4edition (root locus, damping ratio)
Let us calculate the rootlocus with indication of damping ratio 0.5 by Scilab (evans, mtlb_axis, syslin, sgrid) of a system with closed loop with feedback unit
 9 Program 6.10 OGATA 4edition (root locus, gain)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (evans, mtlb_axis, syslin)
 10 Problem A6.11 OGATA 4edition (root locus)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (evans, mtlb_axis, syslin)
 11 Problem A6.12 OGATA 4edition (root locus)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (evans, mtlb_axis, syslin)
 12 Problem A6.13 OGATA 4edition (root locus)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (evans, mtlb_axis, syslin)
 13 Problem A6.14 OGATA 4edition(root locus)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (evans, mtlb_axis, syslin, sgrid)
 14 Problem A6.15 OGATA 4edition (root locus)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (evans, mtlb_axis, syslin)
 15 Exercise B.6.15 (root locus, roots)
Let us calculate the rootlocus of a closedloop system with feedback by Scilab (evans, mtlb_axis, syslin, root, numer) and the roots in closed loop when K=2
 16 Program 7.1 OGATA 4edition (step input, lead compensator)
Let us draw by Scilab (csim, syslin, step, legend),a response to a step input of compensated and no compensated system
 17 Program 7.2 OGATA 4edition ( root locus, lag compensator)
Let us draw by Scilab (evans, mtlb_axis, syslin, subplot),rootlocus of a compensated and no compensated system
 18 Program 7.3 OGATA 4edition (ramp input, lag compensator)
Let us draw by Scilab (csim, syslin, legend) ,response to a unitramp input of a compensated and no compensated system
 19 Program 7.4 OGATA 4edition (step input, lag compensator)
Let us draw by Scilab (csim, syslin, legend, step) ,response to a unitstep input of a compensated and no compensated system
 20 Example 7.3 OGATA 4edition (step input, ramp input, laglead compensator)
Let's solve the problem of the book otherwise. Use scilab (imag, real, horner, abs, tan,csim, step, legend) to check results and draw response to unitstep and unitramp
 21 Program 7.5 OGATA 4edition (Parallel compensator, velocityfeedback compensator)
We will draw a response to a step input for the values of K=0.4490 and K=1.4130 by Scilab (csim, step, legend)
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