比例协变:实数乘法

比例协变:实数乘法
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2015-02-06 12:28
①本范例演示了比例协变从自然数扩展到实数的图形现象;②涉及核心数学概念包括乘法、分段函数、直方图、微积分、相关性和抛物线;③作图要点使用了Textfield, Max, Segment等GeoGebra命令和对象;④适合高中及以上数学学习者和教师用于理解乘法在实数域中的变化规律。

GeoGebra 命令及参数

  1. Textfield(number_{multiplier}) → input_{multiplier}
  2. Textfield(number_{multiplicand}) → input_{multiplicand}
  3. Max({number_{multiplier}, (-number_{multiplier}), number_{multiplicand}, number_{multiplicand}, number_{product}, (-number_{product})}) → max
  4. Segment(Unit, Multiplier) → s_1
  5. Segment(Multiplicand, Product) → PCV
  6. Segment((0, 0), Unit) → h_1
  7. Segment((0, 0), Multiplicand) → h_2
  8. Segment((0, 0), Multiplier) → h_3
  9. Segment((0, 0), Product) → h_4
  10. Textfield(number_{multiplier}) → Mltplr
  11. Textfield(number_{multiplicand}) → Mltplcnd
  12. Textfield(number_{multiplier}) → input_2
  13. Textfield(number_{multiplicand}) → input_1
  14. Textfield(number_{multiplier}) → inputBox1_1
  15. Textfield(number_{multiplicand}) → inputBox2_1
  16. Textfield(number_{multiplier}) → input_5
  17. Textfield(number_{multiplicand}) → input_3
  18. Textfield(number_{multiplier}) → inputBox1_2
  19. Textfield(number_{multiplicand}) → inputBox2_2
  20. Textfield(number_{multiplier}) → input_6
  21. Textfield(number_{multiplicand}) → input_4
  22. Textfield(number_{multiplier}) → inputBox1_3
  23. Textfield(number_{multiplicand}) → inputBox2_3
  24. Textfield(number_{multiplier}) → input_9
  25. Textfield(number_{multiplicand}) → input_7
  26. Textfield(number_{multiplier}) → inputBox1_4
  27. Textfield(number_{multiplicand}) → inputBox2_4
  28. Textfield(number_{multiplier}) → input_{10}
  29. Textfield(number_{multiplicand}) → input_8
  30. Textfield(number_{multiplier}) → inputBox1_5
  31. Textfield(number_{multiplicand}) → inputBox2_5

AI 绘图提示语参考

画一个展示实数乘法比例变化的图形,包含两个输入框分别代表乘数和被乘数,通过计算它们的乘积并绘制四个从原点到各数值的线段,再连接乘数和乘积、被乘数和乘积绘制两条线段,最后用最大值函数确定关键点位置,整体展示乘法在实数中的变化关系。
以上提示语为根据原始绘图命令整理而来,仅供参考。