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Venn图示例 by Dr Brooks (2)

Venn图示例 by Dr Brooks (2)
几何画板及绘图内容加载中，请稍等……
2015-05-22 17:52
圆三角函数概率统计
所属专题 Statistics and Probability with Mr Downes conditional probability page 2
该范例演示了Venn图，展示了集合之间的交集、并集、补集等关系。涉及的核心数学概念包括集合论和逻辑。使用了Polygon, Point, Segment, Circle, If等GeoGebra命令进行构造。适合初中及以上学生学习集合的概念和操作。

GeoGebra 命令及参数

  1. Polygon(B, C, D, A) → poly1, b, c, d, a
  2. Point(xAxis) → E
  3. Segment(F, G) → e
  4. Circle(E, e) → f
  5. Point(xAxis) → H_1
  6. Circle(H_1, e) → g
  7. If(GCD[top, bottom] ≟ 1, "", "=" + (FractionText[top / bottom])) → question1