iter =   0, Function value 1., Residual: 2. 
iter =   1, Function value 0.773446, Residual: 6.07754 
iter =   2, Function value 0.520003, Residual: 2.7095 
iter =   3, Function value 0.399519, Residual: 9.37099 
iter =   4, Function value 0.207877, Residual: 0.782443 
iter =   5, Function value 0.143719, Residual: 2.90222 
iter =   6, Function value 0.102327, Residual: 6.8526 
iter =   7, Function value 0.0400405, Residual: 0.613311 
iter =   8, Function value 0.0244707, Residual: 1.22032 
iter =   9, Function value 0.0117014, Residual: 2.46556 
iter =  10, Function value 0.00261731, Residual: 0.557944 
iter =  11, Function value 0.00032556, Residual: 0.601787 
iter =  12, Function value 6.6759e-06, Residual: 0.0298191 
iter =  13, Function value 4.83126e-09, Residual: 0.00254698 
iter =  14, Function value 2.07148e-15, Residual: < 1.0e-6