        and the possible values for i and j have the
                following meaning:
          = 1:  the routine FCN returned with INFO &lt;&gt; 0 for
                IFLAG = 1;
          = 2:  the routine FCN returned with INFO &lt;&gt; 0 for
                IFLAG = 2;
          = 3:  ALG = 'D' and SLICOT Library routines MB02XD or
                NF01BU (or NF01BV, if INIT = 'S' or 'B') or
                ALG = 'I' and SLICOT Library routines MB02WD or
                NF01BW (or NF01BX, if INIT = 'S' o