相对向量求最短距离

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → O
2. Vector(O, A) → u
3. Vector(O, B) → v
4. Vector(A, B) → w
5. Midpoint(B, A) → C
6. Midpoint(O, A) → D
7. Midpoint(O, B) → E
8. Vector(A, F) → z
9. Vector(B, G) → a
10. Midpoint(A, F) → H
11. Midpoint(G, B) → I
12. Translate(B, rv) → B'
13. Vector(B, B') → b
14. Point(yAxis) → K
15. Vector(O, K) → c
16. Vector(O, L) → d
17. Vector(O, M) → e
18. Point(xAxis) → N
19. Vector(O, N) → f
20. Translate(B, Vector[(Time * b)]) → B'_1
21. Line(B, B') → g
22. Vector(A, B'_1) → h
23. Midpoint(A, B'_1) → P
24. Distance(A, B'_1) → distanceAB'1
25. Translate(B, Vector[((Time - 1) * b)]) → Q
26. Angle(A, B'_1, Q) → α