行列式的缩放性质

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Segment(A, B) → a
3. Segment(A, D) → b
4. Line(B, b) → c
5. Line(D, a) → d
6. Intersect(c, d) → C
7. Polygon(A, B, C, D) → poly1, a_1, b_1, d_1, c_1
8. Line(A, B) → f
9. Point(Circle[A, a * e]) → E
10. Segment(A, E) → h
11. Circle(A, E) → g
12. Intersect(g, f) → F, G
13. Line(G, b) → i
14. Line(D, f) → j
15. Intersect(i, j) → H
16. Polygon(A, G, H, D) → poly2, a_2, g_1, h_1, d_2
17. Point(Circle[A, k * b]) → I
18. Segment(A, I) → l
19. Circle(A, I) → p
20. Line(A, D) → m
21. Intersect(p, m) → J, K
22. Line(K, a_2) → n
23. Line(B, d_2) → q
24. Intersect(n, q) → L
25. Polygon(A, B, L, K) → poly3, a_3, b_2, l_1, k_1
26. Vector(A, B) → u
27. Vector(A, G) → v
28. Vector(A, D) → w
29. Vector(A, K) → z