NQ
      INTEGER           K, LDA, LDB, LDRS, LDT, LDV, LDW, M, N
C     .. Array Arguments ..
      DOUBLE PRECISION  A(LDA,*), B(LDB,*), DWORK(*), RS(LDRS,*),
     $                  T(LDT,*), V(LDV,*), W(LDW,*)

</PRE>
<A name="Arguments"><B><FONT SIZE="+1">Arguments</FONT></B></A>
<P>

<B>Mode Parameters</B>
<PRE>
  STRAB   CHARACTER*1
          Specifies the structure of the first blocks of A and B:
          = 'Z':  the leading K-by-N submatrices of op(A) and op(B)
                  are (implicitly) as