File: invr.cat

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invr(8)                        Scilab Function                        invr(8)
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