八圆问题

GeoGebra 命令及参数

1. Circle(A, A_1) → c
2. Circle(C, B_1) → d
3. Point(c) → A_2
4. Circle(B_1, A_1, A_2) → e
5. Intersect(d, e, 2) → B_2
6. Point(c) → A_3
7. Circle(B_2, A_2, A_3) → f
8. Intersect(d, f, 2) → B_3
9. Point(c) → A_4
10. Circle(B_3, A_3, A_4) → g
11. Intersect(d, g, 2) → B_4
12. Point(c) → A_5
13. Circle(B_4, A_4, A_5) → h
14. Intersect(d, h, 2) → B_5
15. Point(d) → B_6
16. Circle(B_5, A_5, B_6) → k
17. Circle(A_1, B_1, B_6) → p
18. Center(e) → C_1
19. Center(f) → C_2
20. Center(g) → C_3
21. Center(h) → C_4
22. Center(k) → C_5
23. Center(p) → C_6
24. Intersect(c, k, 2) → A_6
25. Circle(A_6, B_6, B_5) → q
26. Circle(B_2, A_2, B_3) → r
27. Circle(A_1, B_1, B_6) → s
28. Circle(B_3, A_3, B_4) → t
29. Circle(A_1, A_2, A_3) → c_1
30. Circle(B_1, B_2, B_3) → d_1
31. Circle(A_5, B_5, B_4) → e_1
32. Circle(B_1, A_1, A_2) → f_1
33. Line(C_1, C_4) → a
34. Line(C_3, C_6) → b
35. Line(C_5, C_2) → i
36. Intersect(a, b) → D