力学与几何的类比

GeoGebra 命令及参数

1. Polygon(A, B, C, D, E) → poly1, a, b, c, d, e
2. Circle(F, G) → f
3. Point(f) → H
4. Segment(H, A) → g
5. Segment(H, E) → h
6. Segment(H, B) → i
7. Segment(H, C) → j
8. Segment(H, D) → k
9. Intersect(d, a) → I
10. Intersect(c, a) → J
11. Polygon(I, D, J) → poly2, j_1, ı, d_1
12. Polygon(A, I, E) → poly3, e_1, a_1, ı_1
13. Polygon(J, B, C) → poly4, c_1, j_2, b_1
14. Line(K, L) → l
15. Point(l) → O
16. Line(D, P) → m
17. Line(O, L) → n
18. Intersect(l, m) → Q
19. Segment(Q, G) → R