向量加法演示 by Ian Robertson

GeoGebra 命令及参数

1. Vector(A, B) → v
2. Vector(A, C) → u
3. Rotate(C, If[0 < a ≤ 1, ((a * 180))°, 180°], A) → C'
4. Dilate(A, If[1 < a < 2, 2 - a, 1], B) → A'
5. Vector(A, A') → b
6. Rotate(C, 180°, A) → C'_1
7. Translate(C'_1, b) → D
8. Translate(C'_1, v) → E
9. Vector(A, E) → f
10. Textfield() → InputBox1
11. Dilate(A, If[0 < a ≤ 1, 1 - a, 0], C) → A'_1
12. Vector(A, A'_1) → w
13. Translate(B, w) → B'
14. Vector(A'_1, B') → c
15. Dilate(A, If[1 < a ≤ 2, 2 - a, 0], B') → A'_2
16. Vector(A, A'_2) → d
17. Vector(A, B) → e
18. Dilate(A, If[0 < g ≤ 1, 1 - g, 0], B) → A'_3
19. Vector(A, A'_3) → h
20. Translate(C, h) → C'_2
21. Vector(A'_3, C'_2) → i
22. Vector(A, C) → j
23. Dilate(A, If[1 < g ≤ 2, 2 - g, 0], C'_2) → A'_4
24. Vector(A, A'_4) → k