帕斯卡抛物线

GeoGebra 命令及参数

1. Line(A, B) → a
2. Parabola(C, a) → c
3. Point(c) → D
4. Point(c) → E
5. Point(c) → F
6. Point(c) → G
7. Point(c) → H
8. Point(c) → I
9. Segment(D, H) → b
10. Segment(D, G) → d
11. Segment(E, I) → e
12. Segment(E, G) → f
13. Segment(F, I) → g
14. Segment(F, H) → h
15. Intersect(f, h) → J
16. Intersect(d, g) → K
17. Intersect(b, e) → L
18. AreCollinear(J, K, L) → i
19. Prove(i) → j