herwise, this entry is ignored.
          BPAR(3) = .FALSE. : If BPAR(2) = .FALSE., the matrix
                              returned in array G is stored in lower
                              packed mode, i.e., the lower triangle
                              of a symmetric n-by-n matrix is stored
                              by columns, e.g., the matrix entry
                              G(i,j) is stored in the array entry
                              G(i+(2*n-j)*(j-1)/2) for j &lt;= i.
              