File: contrss.cat

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contrss           Scilab Group           Scilab Function            contrss
NAME
   contrss - controllable part
  
CALLING SEQUENCE
 [slc]=contrss(sl [,tol])
PARAMETERS
 sl   : linear system (syslin list)
      
 tol  : is a threshold for controllability (see contr).  default value is
      sqrt(%eps).
      
DESCRIPTION
   returns the controllable part of the linear  system sl = (A,B,C,D) in
  state-space form. 
  
EXAMPLE
 A=[1,1;0,2];B=[1;0];C=[1,1];sl=syslin('c',A,B,C);  //Non minimal
 slc=contrss(sl);
 sl1=ss2tf(sl);sl2=ss2tf(slc);      //Compare sl1 and sl2
SEE ALSO
   cont_mat, ctr_gram, cont_frm, contr