Division I：几何与分数求和的探索

GeoGebra 命令及参数

1. Textfield(n) → InputBox1
2. Textfield(t) → InputBox2
3. Textfield(maxt) → InputBox3
4. Textfield(inct) → InputBox4
5. Textfield(maxn) → InputBox5
6. Textfield(incn) → InputBox6
7. Polygon((x(P), y(P)), (x(P) + t, y(P)), (x(P) + t, y(P) + h), (x(P), y(P) + h)) → t1, i, j, k, l
8. Sequence(Segment[(x(P) + (t / n * i), y(P)), (x(P) + (t / n * i), y(P) + h)], i, 1, n, 1) → l1