File: invr.cat

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invr             Scilab Group             Scilab Function              invr
NAME
   invr - inversion of (rational) matrix
  
CALLING SEQUENCE
 F = invr(H)
PARAMETERS
 H    : polynomial or rational matrix
      
 F    : polynomial or rational matrix
      
DESCRIPTION
   If H is a polynomial or rational function matrix, invr computes H^(-1)
  using Leverrier's algorithm (see function code)
  
EXAMPLE
 s=poly(0,'s')
 H=[s,s*s+2;1-s,1+s]; invr(H)
 [Num,den]=coffg(H);Num/den
 H=[1/s,(s+1);1/(s+2),(s+3)/s];invr(H)
SEE ALSO
   glever, coffg, inv