非原点圆方程演示

GeoGebra 命令及参数

1. Circle(A, B) → c
2. Point(c) → C
3. Segment(A, C) → g
4. Intersect(a, f) → D
5. Segment(A, D) → d
6. Segment(D, C) → e
7. Distance(D, C) → distanceDC
8. Distance(A, D) → distanceAD
9. Distance(A, C) → distanceAC
10. Dilate(A, If[0 < h ≤ 1, 1 - h, 0], D) → A'
11. Segment(A, A') → i
12. Dilate(D, If[1 < h ≤ 2, 2 - h, 0], C) → D'
13. Segment(D, D') → j
14. Angle(C, D, A) → α
15. Dilate(C, If[2 < h ≤ 3, 3 - h, 0], A) → C'
16. Segment(C, C') → k
17. Polygon(A, D, C) → poly1, c_1, a_1, d_1
18. Distance(A, B) → l
19. Point(f) → E
20. Ray(A, E) → m
21. Point(m) → F
22. Ray(A, F) → n
23. Intersect(c, f, 1) → G
24. Segment(A, G) → q