分数墙

GeoGebra 命令及参数

1. Point(yAxis) → A
2. Point(yAxis) → B
3. OrthogonalLine(A, yAxis) → a
4. OrthogonalLine(B, yAxis) → b
5. Point(xAxis) → C
6. OrthogonalLine(C, xAxis) → c
7. Intersect(a, c) → D
8. Intersect(b, c) → E
9. Sequence((k / m, 1), k, 0, m) → m0
10. Sequence((k / m, 2), k, 0, m) → m1
11. Sequence((k / n, 1), k, 0, n) → n0
12. Sequence((k / n, 0), k, 0, n) → n1
13. Sequence(Polygon[{Element[m0, k], Element[m0, k + 1], Element[m1, k + 1], Element[m1, k]}], k, 1, m) → mq
14. Sequence(Polygon[{Element[n0, k], Element[n0, k + 1], Element[n1, k + 1], Element[n1, k]}], k, 1, n) → nq