File: lcmdiag.cat

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lcm(8)                         Scilab Function                         lcm(8)
NAME
  lcmdiag - least common multiple diagonal factorization

CALLING SEQUENCE
  [N,D]=lcmdiag(H)
  [N,D]=lcmdiag(H,flag)

PARAMETERS

  H    : rational matrix

  N    : polynomial matrix

  D    : diagonal polynomial matrix

  flag : character string: 'row' or 'col' (default)

DESCRIPTION
  [N,D]=lcmdiag(H,'row') computes a factorization D*H=N, i.e.  H=D^(-1)*N
  where D is a diagonal matrix with D(k,k)=lcm of kth row of H('den').

  [N,D]=lcmdiag(H) or [N,D]=lcmdiag(H,'col) returns H=N*D^(-1) with diagonal
  D and D(k,k)=lcm of kth col of H('den')

EXAMPLE
  s=poly(0,'s');
  H=[1/s,(s+2)/s/(s+1)^2;1/(s^2*(s+2)),2/(s+2)];
  [N,D]=lcmdiag(H);
  N/D-H

SEE ALSO
  lcm, gcd, bezout