笛卡尔比例中项/对数机

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → Y
2. Point(xAxis) → C_1
3. Vector(Y, C_1) → u
4. Circle(Y, 1) → d
5. Point(d) → B
6. Ray(Y, B) → e
7. OrthogonalLine(B, e) → f
8. Intersect(c, f) → C
9. OrthogonalLine(C, c) → g
10. Intersect(g, e) → D
11. OrthogonalLine(D, e) → h
12. Intersect(c, h) → E
13. OrthogonalLine(E, c) → i
14. Intersect(i, e) → F
15. OrthogonalLine(F, e) → j
16. Intersect(d, c) → I, A
17. Intersect(c, j) → G
18. Point(e) → X
19. OrthogonalLine(G, c) → k
20. Intersect(k, e) → H
21. OrthogonalLine(H, e) → l
22. Intersect(l, c) → N
23. Point(c) → Z
24. Semicircle(Y, E) → p
25. Semicircle(Y, N) → r
26. Semicircle(Y, G) → q
27. Locus(D, B) → loc1
28. Locus(F, B) → loc2
29. Locus(H, B) → loc3
30. Angle(Y, B, C) → α
31. Angle(D, C, Y) → β
32. Angle(Y, D, E) → γ
33. Angle(F, E, Y) → δ
34. Angle(Y, F, G) → ε
35. Angle(H, G, Y) → ζ
36. Angle(Y, H, N) → η