iter =   0, Function value -0.330579, Residual: 0.728961 
iter =   1, Function value -0.391218, Residual: 0.386209 
iter =   2, Function value -0.411944, Residual: 0.211482 
iter =   3, Function value -0.424594, Residual: 0.10404 
iter =   4, Function value -0.426064, Residual: 0.11195 
iter =   5, Function value -0.427253, Residual: 0.0325694 
iter =   6, Function value -0.427501, Residual: 0.0242395 
iter =   7, Function value -0.42772, Residual: 0.0124806 
iter =   8, Function value -0.427742, Residual: 0.00555245