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飞镖数量估算

飞镖数量估算
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2019-05-05 01:07
概率统计
本范例通过改变从大区域中选取的样本区域，让学生直观地了解概率统计的概念。它使用了圆、多边形、点、线段等 GeoGebra 命令进行构造。适合初中及以上学生学习概率统计和几何作图。

GeoGebra 命令及参数

  1. Circle(A, B) → c
  2. Line(A, B) → f
  3. OrthogonalLine(B, f) → g
  4. OrthogonalLine(A, f) → h
  5. Intersect(c, h, 2) → C
  6. Intersect(c, h, 1) → D
  7. Line(C, f) → i
  8. Line(D, f) → j
  9. Intersect(g, i) → E
  10. Intersect(g, j) → F
  11. Intersect(c, f, 2) → G
  12. OrthogonalLine(G, f) → k
  13. Intersect(i, k) → H
  14. Intersect(j, k) → I
  15. Polygon(H, E, F, I) → samplespace, h_1, e, f_1, i_1
  16. Midpoint(C, E) → J
  17. Midpoint(B, E) → K
  18. Midpoint(H, G) → L
  19. Midpoint(D, F) → M
  20. Segment(J, M) → l
  21. Segment(L, K) → m
  22. Intersect(l, m) → N
  23. Polygon(L, N, M, I) → boundary, l_1, n, m_1, i_2
  24. PointIn(boundary) → O
  25. Circle(O, Segment[N, J]) → d
  26. Line(O, l) → p
  27. Line(O, m) → q
  28. Intersect(d, p, 1) → P
  29. Intersect(d, q, 2) → Q
  30. Line(P, q) → r
  31. Line(Q, p) → s
  32. Intersect(r, s) → R
  33. Polygon(O, P, R, Q) → sample, side1, side4, side2, side3
  34. Textfield(guess) → guessBox
  35. Text("Sampled: 0") → inside