乘法数组模型

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(xAxis) → B
3. Segment(A, B) → a
4. Point(yAxis) → C
5. Segment(A, C) → b
6. OrthogonalLine(C, b) → c
7. OrthogonalLine(B, a) → d
8. Point(a) → D
9. OrthogonalLine(D, a) → e
10. Point(b) → E
11. OrthogonalLine(E, b) → f
12. Intersect(c, e) → F
13. Intersect(c, d) → G
14. Intersect(d, f) → H
15. Intersect(e, f) → I
16. Polygon(C, F, I, E) → poly1, c_1, f_1, i, e_1
17. Polygon(F, G, H, I) → poly2, f_2, g, h, i_1
18. Polygon(I, H, B, D) → poly3, i_2, h_1, b_1, d_1
19. Polygon(E, I, D, A) → poly4, e_2, i_3, d_2, a_1
20. Segment(C, G) → j
21. Segment(G, B) → k
22. Segment(B, A) → l
23. Segment(A, C) → m
24. Segment(E, H) → n
25. Segment(F, D) → p
26. Midpoint(C, E) → J
27. Midpoint(E, A) → K
28. Midpoint(C, F) → L
29. Midpoint(F, G) → M
30. Distance(F, G) → distanceFG
31. Distance(C, F) → distanceCF
32. Distance(C, E) → distanceCE
33. Distance(E, A) → distanceEA