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GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Circle(A, 2) → c
3. Intersect(c, xAxis, 2) → B
4. Circle(A, 1) → d
5. Intersect(d, xAxis, 2) → C
6. Rotate(C, α, A) → C'
7. Circle(C', 1) → e
8. Rotate(A, (-2 * α), C') → A'
9. Line(C', A') → g
10. Circle(C', 2) → f
11. Intersect(f, g, 2) → D
12. OrthogonalLine(C', g) → h
13. Intersect(f, h, 2) → E
14. Intersect(f, h, 1) → F
15. Intersect(f, g, 1) → G
16. Segment(F, E) → i
17. Segment(D, G) → j
18. Intersect(c, xAxis, 1) → H
19. Intersect(c, yAxis, 2) → I
20. Intersect(c, yAxis, 1) → J
21. Intersect(e, j, 2) → K
22. Segment(I, J) → k
23. Segment(H, B) → l