变量乘法可视化

GeoGebra 命令及参数

1. Textfield(i) → Textfeld1
2. Point(Circle[A, k]) → B
3. Segment(A, B) → a
4. OrthogonalLine(A, a) → b
5. OrthogonalLine(B, a) → c
6. Circle(A, j) → d
7. Intersect(d, b) → T_1, D
8. Line(D, a) → e
9. Intersect(e, c) → C
10. Sequence(Segment[A + i * (1, 0), D + i * (1, 0)], i, 1, k) → Liste1
11. Sequence(Segment[A + i * (0, 1), B + i * (0, 1)], i, 1, j) → Liste2
12. Segment(A, D) → f
13. Textfield(studText) → inputBox1
14. Midpoint(A, B) → E
15. Midpoint(A, D) → F
16. Midpoint(D, B) → G