iter =   0, Function value 1., Residual: 2. 
iter =   0, Function value 0.770447, Residual: 5.24792 
iter =   1, Function value 0.526409, Residual: 3.62426 
iter =   2, Function value 0.357435, Residual: 5.6789 
iter =   3, Function value 0.213476, Residual: 2.12473 
iter =   4, Function value 0.15103, Residual: 8.35263 
iter =   5, Function value 0.0602938, Residual: 0.498513 
iter =   6, Function value 0.0331258, Residual: 2.4877 
iter =   7, Function value 0.0119116, Residual: 1.77389 
iter =   8, Function value 0.00292613, Residual: 1.00799 
iter =   9, Function value 0.000357205, Residual: 0.409411 
iter =  10, Function value 1.02563e-05, Residual: 0.0746257 
iter =  11, Function value 1.26232e-08, Residual: 0.00275403 
iter =  12, Function value 2.09587e-14, Residual: 3.46652e-06