黄金分割与算术平均数

GeoGebra 命令及参数

1. Point(xAxis) → A
2. Point(xAxis) → B
3. Point(xAxis) → C
4. Point(xAxis) → D
5. Point(xAxis) → E
6. Point(xAxis) → F
7. Point(xAxis) → G
8. Point(xAxis) → H
9. Point(xAxis) → I
10. Point(xAxis) → J
11. Semicircle(A, J) → c
12. Midpoint(A, J) → K
13. OrthogonalLine(K, xAxis) → f
14. Mirror(H, J) → H'
15. Mirror(J, H') → J'
16. Mirror(H', J') → H''
17. Mirror(J', H'') → J''
18. Semicircle(B, J'') → d
19. Midpoint(B, J'') → L
20. OrthogonalLine(L, xAxis) → g
21. Intersect(d, g, 1) → M
22. Segment(L, M) → h
23. Point(xAxis) → N
24. Point(xAxis) → O
25. Point(xAxis) → P
26. Point(xAxis) → Q
27. Point(xAxis) → R
28. Point(xAxis) → S
29. Semicircle(N, T) → e
30. Midpoint(N, T) → U
31. OrthogonalLine(U, xAxis) → i
32. Intersect(e, i, 1) → V
33. Segment(U, V) → j
34. OrthogonalLine(Q, xAxis) → k
35. Intersect(e, k, 1) → W
36. Segment(Q, W) → l