03
 Iter  9: f = 7.313569e-01 f-delta = 6.9e-03
 Iter 10: f = 7.398597e-01 f-delta = 8.5e-03
 Iter 11: f = 7.514761e-01 f-delta = 1.2e-02
 Iter 12: f = 7.690794e-01 f-delta = 1.8e-02
 Iter 13: f = 7.939227e-01 f-delta = 2.5e-02
 Iter 14: f = 8.166727e-01 f-delta = 2.3e-02
 Iter 15: f = 8.299350e-01 f-delta = 1.3e-02
 Iter 16: f = 8.374720e-01 f-delta = 7.5e-03
 Iter 17: f = 8.422694e-01 f-delta = 4.8e-03
 Iter 18: f = 8.458255e-01 f-delta = 3.6e-03
 Iter 19: f = 8.488925e-01 f-delta = 3.1e-03
 Iter 20: f = 