arameters</B>
<PRE>
  MODE    CHARACTER*1
          Specifies the desired structure of the transformed
          pencil Q'(sE-A)Z to be computed as follows:
          = 'B':  Basic reduction given by (1);
          = 'T':  Further reduction of (1) to triangular form;
          = 'S':  Further separation of sE(eps,inf)-A(eps,inf)
                  in (1) into the two pencils in (2).

  JOBQ    CHARACTER*1
          Indicates whether the user wishes to accumulate in a
          matrix Q the orthogonal row tra