File: m_circle.cat

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scilab 2.6-4
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m_circle          Scilab Group          Scilab Function            m_circle
NAME
   m_circle - M-circle plot
  
CALLING SEQUENCE
  m_circle()
  m_circle(gain)
PARAMETERS
 gain : vector of gains (in DB). The default value is 
      
     gain =[-12 -8 -6 -5 -4 -3 -2 -1.4 -1 -.5 0.25 0.5 0.7 1 1.4 2 2.3 3 4
          5 6 8 12]
          
DESCRIPTION
   m_circle is used with nyquist.
  
EXAMPLE
 //Example 1 :
   s=poly(0,'s')
   h=syslin('c',(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01))
   nyquist(h,0.01,100,'(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01)')
   m_circle();
 //Example 2:
   xbasc();
   h1=h*syslin('c',(s^2+2*0.1*15.1*s+228.01)/(s^2+2*0.9*15*s+225))
   nyquist([h1;h],0.01,100,['h1';'h'])
   m_circle([-8 -6 -4]);
SEE ALSO
   nyquist, chart, black
  
AUTHOR
   S.Steer.