指数乘法法则演示

指数乘法法则演示
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2017-11-21 23:00
①本范例演示指数乘法法则的几何与代数表示;②核心概念为指数运算规则、函数图像变换;③构造中运用了Text, If, Translate, Sequence等命令及expX1, expY1等对象,实现条件文本与序列动画;④适合高中数学教学,用于理解指数函数性质与运算规则。

GeoGebra 命令及参数

  1. Text("y") → text4
  2. Text("y") → text6
  3. Text("x") → text5
  4. Text(expX1 + "") → text8
  5. Text(expX2 + "") → text9
  6. Text(expY1 + "") → text10
  7. Text(expY2 + "") → text11
  8. If(color, 255, 0) → factorColor255
  9. If(color, 153, 0) → factorColor153
  10. Text("x") → text3
  11. If(expX1 - expX2 ≟ 0 ∧ expY1 - expY2 ≟ 0, 1, 0) → zeros
  12. Translate((6.923609046978582, -1.782455570499752), Vector[(0, 0), (0, -3)]) → A
  13. Translate((6.923609046978582, 0.217544429500248), Vector[(0, 0), (0, -3)]) → B
  14. Translate((7.524258469913336, 0.217544429500248), Vector[(0, 0), (0, -3)]) → C
  15. Translate((7.524258469913336, -1.782455570499752), Vector[(0, 0), (0, -3)]) → D
  16. Sequence(Translate[xtop, Vector[(1.5, 0), ((0.65 * i), 0)]], i, 0, expX1 + expX2 - 1) → ExpandXtop
  17. Sequence(Translate[ytop, Vector[(0, 0), ((0.65 * i), 0)]], i, 0, expY1 + expY2 - 1) → ExpandYtop