筝形的重心

GeoGebra 命令及参数

1. Textfield(a) → InputBox1
2. Textfield(b) → InputBox2
3. Textfield(c) → InputBox3
4. Textfield(d) → InputBox4
5. Textfield(f) → InputBox5
6. Polygon(A, B, C) → t1, c_1, a_1, b_1
7. Segment(C, B) → h_{1}
8. Segment(B, A) → i_{1}
9. Segment(A, C) → j
10. Angle(C, B, A) → α
11. Circle(D, (10 * a) + b) → e
12. Point(e) → E
13. Circle(E, c) → k
14. Segment(D, E) → l
15. Mirror(E, l) → E'
16. Mirror(D, l) → D'
17. Mirror(E, l) → E'_{1}
18. Mirror(D, l) → D'_{1}
19. Circle(D, sqrt((100 * d) + (10 * f) + g_{1})) → q
20. Intersect(k, q, 2) → F
21. Segment(D, F) → m
22. Segment(F, E) → n
23. Angle(F, E, D) → β
24. Textfield(h) → InputBox8
25. Textfield(g) → InputBox6
26. Textfield(i) → InputBox7
27. Circle(D, (10 * a) + b) → p
28. Point(p) → H
29. Segment(D, H) → r
30. Circle(H, (10 * c) + d) → s
31. Intersect(p, s, 1) → I
32. Circle(D, sqrt((1000 * f) + (100 * g) + (10 * h) + i)) → d_1
33. Intersect(s, d_1, 2) → J
34. Segment(H, J) → f_1
35. Segment(D, J) → t
36. Angle(J, H, D) → γ
37. Polygon(D, H, J) → t2, j_1, d_2, h_2
38. Mode(l2) → l1
39. If(Length[l1] ≟ 0, "No digits repeat.", "You have repeated digits.") → text4