
          of LDWORK.

  LDWORK  INTEGER
          The length of the array DWORK.
          LDWORK &gt;= MAX( 1, LLEFT, LRIGHT ),
          where
          LLEFT  = (N+NV)*(N+NV+MAX(N+NV,PV)+5)
                           if WEIGHT = 'L' or 'B' and PV &gt; 0;
          LLEFT  = N*(P+5) if WEIGHT = 'R' or 'N' or  PV = 0;
          LRIGHT = (N+NW)*(N+NW+MAX(N+NW,MW)+5)
                           if WEIGHT = 'R' or 'B' and MW &gt; 0;
          LRIGHT = N*(M+5) if WEIGHT = 'L' or 'N' or  MW = 0.
          For op