• Contents
• 1 Program 6.1 OGATA 4edition (root locus)
  

  Let us calculate the root-locus of a closed-loop system with feedback by Scilab (evans, mtlb_axis, syslin)
  

• 2 Program 6.2 OGATA 4edicion (root locus)
  
  

  Let us calculate the root-locus of a closed-loop system with feedback by Scilab (evans, mtlb_axis, syslin)

  
  
• 3 Program 6.3 OGATA 4edition (root locus)
  

  Let us calculate the root-locus of a closed-loop 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 root-locus 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 roots-locus 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 roots-locus 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 root-locus 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 close-loop 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 root-locus 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 root-locus of a closed-loop system with feedback by Scilab (evans, mtlb_axis, syslin)

  
  
• 10 Problem A6.11 OGATA 4edition (root locus)
  

  Let us calculate the root-locus of a closed-loop system with feedback by Scilab (evans, mtlb_axis, syslin)

  
  
• 11 Problem A6.12 OGATA 4edition (root locus)
  

  Let us calculate the root-locus of a closed-loop system with feedback by Scilab (evans, mtlb_axis, syslin)

  
  
• 12 Problem A6.13 OGATA 4edition (root locus)
  

  Let us calculate the root-locus of a closed-loop system with feedback by Scilab (evans, mtlb_axis, syslin)

  
  
• 13 Problem A6.14 OGATA 4edition(root locus)
  

  Let us calculate the root-locus of a closed-loop system with feedback by Scilab (evans, mtlb_axis, syslin, sgrid)

  
  
• 14 Problem A6.15 OGATA 4edition (root locus)
  

  Let us calculate the root-locus of a closed-loop system with feedback by Scilab (evans, mtlb_axis, syslin)

  
  
• 15 Exercise B.6.15 (root locus, roots)
  

  Let us calculate the root-locus of a closed-loop 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),root-locus 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 unit-ramp 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 unit-step input of a compensated and no compensated system

  
  
• 20 Example 7.3 OGATA 4edition (step input, ramp input, lag-lead 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 unit-step and unit-ramp

  
  
• 21 Program 7.5 OGATA 4edition (Parallel compensator, velocity-feedback 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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