case of equation (1) the matrix A must be stable (that is,
  all the eigenvalues of A must have negative real parts), and for
  equation (2) the matrix A must be convergent (that is, all the
  eigenvalues of A must lie inside the unit circle).

</PRE>
<A name="Specification"><B><FONT SIZE="+1">Specification</FONT></B></A>
<PRE>
      SUBROUTINE SB03OZ( DICO, FACT, TRANS, N, M, A, LDA, Q, LDQ, B,
     $                   LDB, SCALE, W, DWORK, ZWORK, LZWORK, INFO )
C     .. Scalar Arguments ..
      CHARACTER