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线段求和演示 by Sarah Sheley

线段求和演示 by Sarah Sheley
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2016-10-03 02:43
向量三角函数立体几何复数几何作图
①本范例演示了三维空间中多个线段的长度求和及可视化；②涉及核心数学概念包括线段、向量、复数、三角函数、微分方程等；③作图要点运用了Segment、Circle、Point、Intersect、Distance、Midpoint等GeoGebra命令与对象构建几何图形与计算；④适合高中及以上学生及数学爱好者用于理解空间几何与向量运算。

GeoGebra 命令及参数

  1. Segment(P, G) → i
  2. Circle(B, 5) → c
  3. Point(c) → A
  4. Segment(B, A) → f
  5. Circle(P, 5) → d
  6. Intersect(d, i, 1) → H
  7. Circle(C, 4) → e
  8. Circle(H, 4) → k
  9. Point(e) → D
  10. Segment(C, D) → g
  11. Intersect(k, i, 2) → I
  12. Circle(E, 3) → h
  13. Point(h) → F
  14. Segment(E, F) → j
  15. Circle(I, 3) → p
  16. Intersect(p, i, 2) → Q
  17. Distance(B, A) → distanceBA
  18. Midpoint(B, A) →
  19. Distance(P, H) → distancePH
  20. Midpoint(P, H) →
  21. Distance(C, D) → distanceCD
  22. Midpoint(C, D) →
  23. Distance(H, I) → distanceHI
  24. Midpoint(H, I) →
  25. Distance(E, F) → distanceEF
  26. Midpoint(E, F) →
  27. Distance(I, Q) → distanceIQ
  28. Midpoint(I, Q) →