F11ZAF Example Program Results Original elements NNZ = 15 A IROW ICOL 1 4.0000E+00 3 1 2 -2.0000E+00 5 2 3 1.0000E+00 4 4 4 -2.0000E+00 4 2 5 -3.0000E+00 5 5 6 1.0000E+00 1 2 7 0.0000E+00 1 5 8 1.0000E+00 3 5 9 -1.0000E+00 2 4 10 6.0000E+00 5 5 11 2.0000E+00 1 1 12 2.0000E+00 4 2 13 1.0000E+00 2 3 14 1.0000E+00 3 3 15 2.0000E+00 4 5 Reordered elements, along rows first NNZ = 11 1 2.0000E+00 1 1 2 1.0000E+00 1 2 3 1.0000E+00 2 3 4 -1.0000E+00 2 4 5 4.0000E+00 3 1 6 1.0000E+00 3 3 7 1.0000E+00 3 5 8 1.0000E+00 4 4 9 2.0000E+00 4 5 10 -2.0000E+00 5 2 11 3.0000E+00 5 5 Reordered elements, along columns first NNZ = 11 1 2.0000E+00 1 1 2 4.0000E+00 3 1 3 1.0000E+00 1 2 4 -2.0000E+00 5 2 5 1.0000E+00 2 3 6 1.0000E+00 3 3 7 -1.0000E+00 2 4 8 1.0000E+00 4 4 9 1.0000E+00 3 5 10 2.0000E+00 4 5 11 3.0000E+00 5 5 ISTR 1 1 2 3 3 5 4 7 5 9 6 12 One norm 6.0000E+00