F08AE_A1W_F Example Program Results R from QR factorization of A 1 2 3 4 1 3.6177 -0.5566 0.8474 0.7460 2 -2.0281 0.5514 1.1700 3 1.3745 -1.4105 4 -2.3755 Derivatives of diagonal of R w.r.t. first col of A dR(i,i)/dA(1:m,1) 1 2 3 4 5 6 1 -0.1576 -0.5335 0.6358 -0.5335 0.0415 -0.0055 2 0.1038 -0.0594 -0.0451 -0.0260 -0.0245 -0.0779 3 0.0880 -0.0497 -0.0032 0.0161 -0.0284 0.1604 4 -0.1413 -0.1228 -0.0608 0.0740 -0.2342 -0.0106