iter =   0, Function value 1., Residual: 2. 
iter =   1, Function value 0.773446, Residual: 6.07754 
iter =   2, Function value 0.648599, Residual: 3.22619 
iter =   3, Function value 0.560405, Residual: 5.47111 
iter =   4, Function value 0.379185, Residual: 3.01163 
iter =   5, Function value 0.280758, Residual: 2.6864 
iter =   6, Function value 0.187322, Residual: 3.78999 
iter =   7, Function value 0.129225, Residual: 6.25728 
iter =   8, Function value 0.10936, Residual: 0.457052 
iter =   9, Function value 0.0850793, Residual: 0.9475 
iter =  10, Function value 0.0601238, Residual: 3.23463 
iter =  11, Function value 0.0405988, Residual: 3.6698 
iter =  12, Function value 0.0184967, Residual: 1.7436 
iter =  13, Function value 0.00898914, Residual: 0.107259 
iter =  14, Function value 0.00553533, Residual: 1.48455 
iter =  15, Function value 0.00353862, Residual: 1.42651 
iter =  16, Function value 0.000594656, Residual: 0.176892 
iter =  17, Function value 0.000129296, Residual: 0.425951 
iter =  18, Function value 5.17587e-06, Residual: 0.0681965 
iter =  19, Function value 3.43742e-08, Residual: 0.00754746 
iter =  20, Function value 6.71678e-11, Residual: 9.78417e-05