utput
          weighting matrix' W of Q's factored form as in (II).
          The symmetric matrix contained in array Q is stored
          according to BPAR(5) and BPAR(6).

  LDQ     INTEGER
          If conventional storage mode is used for Q, i.e.,
          BPAR(5) = .TRUE., then Q is stored like a 2-dimensional
          array with leading dimension LDQ. If packed symmetric
          storage mode is used, then LDQ is not referenced.
          LDQ &gt;= N if BPAR(5) = .TRUE..

  X       (output) DOUBL