
w          
      1.00      1.00      1.00      1.00      1.00

y transpose
      3.00      3.00      5.00      7.00      9.00

a transpose
      1.00      1.00      1.00      1.00      1.00
      1.00      2.00      3.00      4.00      5.00
      1.00      0.00      1.00      0.00      1.00
      0.00      0.00      0.00      1.00      1.00

for iter = 0, 4
x    0.43457383  1.56124675  0.27362058  0.25752524
res -0.73055887  0.55706739  0.39193487 -0.06291389 -0.22804642
x    0.51313990  1.38677299  0.87905121  0.56870615
res -0.22103602  0.28668585  0.55251014 -0.37106210 -0.10523783
x    0.39144874  1.24044573  1.08974123  1.46199656
res -0.27836445 -0.12765980  0.20252723 -0.18477175  0.14541525
x    1.00000620  1.00002205  1.00000381  2.00000381
res  0.00003198  0.00005031  0.00007626  0.00009811  0.00012404
x    1.00000012  0.99999988  1.00000012  2.00000024
res  0.00000004 -0.00000003  0.00000002 -0.00000002  0.00000000
