GeoGebra几何作图示例：坐标与圆锥曲线的交互演示

GeoGebra 命令及参数

1. Random(1, 10) → ay
2. Random(1, 10) → cy
3. Random(1, 10) → cx
4. Random(1, 10) → ax
5. Point(a) → G
6. Point(b) → H
7. Random(1, 10) → bx
8. Random(1, 10) → by
9. Textfield(PA) → kgætA
10. Textfield(PB) → kgætB
11. Textfield(PC) → kgætC
12. Shuffle(CellRange(A1,K11,"point")) → list1, {(5, 3), (1, 5), (9, 3), (0, 4), (2, 8), (7, 7), (7, 8), (5, 5), (1, 4), (0, 10), (5, 0), (7, 3), (10, 8), (0, 3), (2, 7), (9, 10), (9, 2), (9, 1), (7, 2), (1, 3), (1, 9), (10, 5), (3, 3), (8, 7), (2, 10), (4, 9), (8, 6), (6, 1), (8, 9), (5, 7), (10, 10), (1, 7), (0, 1), (1, 2), (7, 9), (0, 0), (8, 8), (6, 4), (6, 8), (0, 2), (6, 3), (4, 1), (9, 6), (1, 1), (6, 7), (2, 4), (10, 4), (10, 7), (3, 8), (8, 3), (0, 7), (8, 0), (2, 3), (4, 7), (10, 2), (6, 0), (5, 6), (5, 10), (0, 8), (9, 7), (4, 2), (10, 6), (10, 3), (8, 1), (3, 6), (1, 0), (3, 1), (6, 2), (1, 10), (7, 1), (9, 4), (2, 2), (7, 5), (10, 9), (5, 8), (10, 0), (2, 5), (2, 1), (7, 4), (10, 1), (9, 5), (6, 6), (4, 8), (5, 9), (4, 4), (0, 9), (3, 5), (4, 6), (2, 0), (9, 9), (4, 3), (7, 0), (1, 8), (8, 4), (6, 10), (3, 4), (9, 8), (9, 0), (3, 2), (2, 6), (0, 6), (5, 1), (7, 10), (4, 5), (8, 10), (5, 2), (6, 9), (4, 10), (4, 0), (3, 9), (5, 4), (7, 6), (8, 2), (3, 7), (6, 5), (3, 0), (3, 10), (1, 6), (2, 9), (8, 5), (0, 5)}
13. Element(list1, 1) → A
14. Element(list1, 2) → B
15. Element(list1, 3) → C