          NR-by-M part of this array contains the system input
          matrix of an equivalent, scaled system.
          On exit, if CKPROP = 'C', DICO = 'C', and JOBE &lt;&gt; 'I', the
          leading NR-by-M part of this array contains the system
          input matrix of an equivalent reduced, possibly scaled (if
          EQUIL = 'S') system, used to check the properness.
          Otherwise, the array B is unchanged.

  LDB     INTEGER
          The leading dimension of the array B.  LDB &gt;= max(