迭代次数

梯度范数

函数值

c ( f ( x k ) f ( x ¯ ) )

1

19000

1143.9

21.02467693

2

6700

366.31

12.10470983

3

3300

253.07

10.06121265

4

2800

214.75

8.802847791

5

2300

168.57

7.911138734

6

1300

76.932

5.171877313

7

4500

85.315

5.532166021

8

1000

50.607

4.132595372

9

530

48.245

4.150813062

10

500

47.277

4.086310511

11

290

41.644

3.873572234

12

370

39.949

3.784081761

13

420

39.716

3.775165665

14

250

39.224

3.760341887

15

120

39.094

3.758186703

16

74

39.056

3.756638622

17

70

39.037

3.756416277

18

60

38.989

3.753974603

19

40

38.868

3.747605175

20

270

38.979

3.753536131

21

59

38.84

3.746252816

22

24

38.833

3.746219151

23

20

38.831

3.745795716

24

18

38.829

3.746077799

25

18

38.827

3.745972816

26

17

38.825

3.745888641

27

17

38.824

3.745820188

28

17

38.823

3.7457724

29

17

38.822

3.745723501

30

17

38.822

3.745727156

31

17

38.821

3.745676313

32

17

38.821

3.745678924

33

17

38.821

3.745678729

34

17

38.821

3.745681443

35

17

38.821

3.745681304

36

17

38.814

3.745307532

37

17

38.811

3.745147183

38

16

38.81

3.745093788

39

15

38.809

3.745060345

40

15

38.808

3.745015504

41

15

38.808

3.745018356

42

15

38.808

3.745020142

43

15

38.808

3.745022536

44

15

38.807

3.74496898

45

15

38.807

3.744968884