
  LDQ     INTEGER
          The leading dimension of the array Q.  LDQ &gt;= MAX(1,N).

  B       (input/output) COMPLEX*16 array, dimension (LDB,N)
          if TRANS = 'N', and dimension (LDB,max(M,N)), if
          TRANS = 'C'.
          On entry, if TRANS = 'N', the leading M-by-N part of this
          array must contain the coefficient matrix B of the
          equation.
          On entry, if TRANS = 'C', the leading N-by-M part of this
          array must contain the coefficient matrix B of the
  