乘法分配律（图形演示）

GeoGebra 命令及参数

1. SelectedElement(CoefficientVariable2) → coefficientvariable2
2. SelectedElement(CoefficientVariable1) → coefficientvariable1
3. SelectedElement(FactorList) → factorvalue
4. SelectedElement(Variable1) → var1
5. SelectedElement(Variable2) → var2
6. Text(If[coefficientvariable1 ≟ 1, "", LaTeX[coefficientvariable1]]) → coeffvar1text
7. Text(If[coefficientvariable2 ≟ 1, "", LaTeX[coefficientvariable2]]) → coeffvar2text
8. Text(If[factorvalue ≟ 1, "", LaTeX[factorvalue]]) → factortext
9. Text(If[coefficientvariable1factored ≟ 1, "", LaTeX[coefficientvariable1factored]]) → coeffvar1factoredtext
10. Sequence(Translate[Element[listImage2nd, SelectedIndex[Variable2]], Vector[(0, 0), ((4.1 * coefficientvariable1) - 1 + 6 + (4 * i), 0)]], i, 0, coefficientvariable2 - 1, 1) → variable2pic
11. Text(If[coefficientvariable2factored ≟ 1, "", LaTeX[coefficientvariable2factored]]) → coeffvar2factoredtext
12. Sequence(Translate[variable2pic, Vector[(0, 0), (0, (-4 * j))]], j, 0, factorvalue - 1, 1) → list2
13. Polygon(A, B, C, D) → poly1, f, g, h, i
14. Sequence(Translate[Element[listImage1st, SelectedIndex[Variable1]], Vector[(0, 0), (5 + (4 * i), 0)]], i, 0, coefficientvariable1 - 1, 1) → variable1pic
15. Sequence(Translate[variable1pic, Vector[(0, 0), (0, (-4 * j))]], j, 0, factorvalue - 1, 1) → list1