ECISION array, dimension (N)
          Details of the permutations and scaling factors applied
          to the right side of A and B.  If P(j) is the index of the
          column interchanged with column j, and D(j) is the scaling
          factor applied to column j, then
            RSCALE(j) = P(j)    for j = 1,...,ILO-1
                      = D(j)    for j = ILO,...,IHI
                      = P(j)    for j = IHI+1,...,N.
          The order in which the interchanges are made is N to
          IHI+1,