       this array contains the corresponding triangular part of
                              _
          the computed matrix R.

  LDR     INTEGER
          The leading dimension of array R.  LDR &gt;= MAX(1,N).

  A       (input/output) DOUBLE PRECISION array, dimension (LDA,N)
          On entry, the leading N-by-N part of this array must
          contain the matrix A. If HESS = 'H' the elements below the
          first subdiagonal, if UPLO = 'U', or above the first
          superdiagonal, if UPLO = '