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: 3.01164 
iter =   5, Function value 0.280758, Residual: 2.68639 
iter =   6, Function value 0.187321, Residual: 3.78983 
iter =   7, Function value 0.129228, Residual: 6.25765 
iter =   8, Function value 0.109362, Residual: 0.456988 
iter =   9, Function value 0.0850818, Residual: 0.947506 
iter =  10, Function value 0.0601269, Residual: 3.23466 
iter =  11, Function value 0.0406023, Residual: 3.66996 
iter =  12, Function value 0.0184967, Residual: 1.74284 
iter =  13, Function value 0.00899069, Residual: 0.107492 
iter =  14, Function value 0.00553656, Residual: 1.48494 
iter =  15, Function value 0.00353901, Residual: 1.42655 
iter =  16, Function value 0.000594822, Residual: 0.176376 
iter =  17, Function value 0.000129439, Residual: 0.426449 
iter =  18, Function value 5.14193e-06, Residual: 0.0674659 
iter =  19, Function value 3.35996e-08, Residual: 0.00748038 
iter =  20, Function value 6.88338e-11, Residual: 0.000118289 
iter =  21, Function value 6.39488e-13, Residual: 2.54343e-05