mber of columns of the positive generator.  P &gt;= K.

  Q       (input)  INTEGER
          The number of columns in B.
          If TYPEG = 'D',        Q &gt;= K;
          If TYPEG = 'C' or 'R', Q &gt;= 0.

  NB      (input)  INTEGER
          On entry, if TYPEG = 'C'  or  TYPEG = 'R', NB specifies
          the block size to be used in the blocked parts of the
          algorithm. NB must be equivalent with the used block size
          in the routine MB02CU.

  RNK     (input)  INTEGER
          If TYP