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乘法阵列

乘法阵列
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2015-01-11 06:54
测试改名0多边形解析几何几何作图
这个范例演示了乘法阵列的概念，通过几何图形展示了乘法运算的规律。核心数学概念包括乘法和几何构造。使用了Intersect、Point、Segment、OrthogonalLine、Polygon、Midpoint、Distance等GeoGebra命令进行构造。适合小学高年级和初中学生学习乘法和几何知识。

GeoGebra 命令及参数

  1. Intersect(xAxis, yAxis) → A
  2. Point(xAxis) → B
  3. Segment(A, B) → a
  4. Point(yAxis) → C
  5. Segment(A, C) → b
  6. OrthogonalLine(C, b) → c
  7. OrthogonalLine(B, a) → d
  8. Point(a) → D
  9. OrthogonalLine(D, a) → e
  10. Point(b) → E
  11. OrthogonalLine(E, b) → f
  12. Intersect(c, e) → F
  13. Intersect(c, d) → G
  14. Intersect(d, f) → H
  15. Intersect(e, f) → I
  16. Polygon(C, F, I, E) → poly1, c_1, f_1, i, e_1
  17. Polygon(F, G, H, I) → poly2, f_2, g, h, i_1
  18. Polygon(I, H, B, D) → poly3, i_2, h_1, b_1, d_1
  19. Polygon(E, I, D, A) → poly4, e_2, i_3, d_2, a_1
  20. Segment(C, G) → j
  21. Segment(G, B) → k
  22. Segment(B, A) → l
  23. Segment(A, C) → m
  24. Segment(E, H) → n
  25. Segment(F, D) → p
  26. Midpoint(C, E) → J
  27. Midpoint(E, A) → K
  28. Midpoint(C, F) → L
  29. Midpoint(F, G) → M
  30. Distance(F, G) → distanceFG
  31. Distance(C, F) → distanceCF
  32. Distance(C, E) → distanceCE
  33. Distance(E, A) → distanceEA