平行线与角度测量(2)

GeoGebra 命令及参数

1. Line(A, B) → f_{1}
2. Random(20, 160) → sol
3. Circle(A, 4) → c_{1}
4. Intersect(c_{1}, f_{1}, 2) → C
5. Rotate(C, (sol * π / 180), A) → C'
6. Angle(C, A, C') → α
7. Intersect(c_{1}, f_{1}, 1) → D
8. Angle(C', A, D) → β
9. Mirror(C', A) → C''
10. Ray(A, C'') → h_{1}
11. Angle(D, A, C'') → γ
12. Angle(C'', A, C) → δ
13. Line(A, C') → g_{1}
14. Point(g_{1}) → E
15. Vector(A, E) → u
16. Translate(f_{1}, u) → f'
17. Translate(C, u) → C'_{1}
18. Rotate(C'_{1}, (sol * π / 180), E) → F
19. Rotate(F, π - (sol * π / 180), E) → F'
20. Rotate(F', (sol * π / 180), E) → F''
21. Angle(C'_{1}, E, F) → ε
22. Angle(F, E, F') → ζ
23. Angle(F', E, F'') → η
24. Angle(F'', E, C'_{1}) → θ
25. Random(1, 8) → n
26. Textfield(a) → InputBox1
27. Segment(G, H) → i
28. Segment(I, J) → j
29. Segment(K, L) → k
30. Textfield(b) → InputBox2
31. Textfield(c) → InputBox3
32. Textfield(d) → InputBox4
33. Textfield(e) → InputBox5
34. Textfield(f) → InputBox6
35. Textfield(g) → InputBox7
36. Textfield(h) → InputBox8
37. Random(-20, 20) → coeff1
38. RandomElement(Union[Sequence[i, i, -20, -1, 1], Sequence[i, i, 1, 20, 1]]) → s1
39. Simplify((coeff1 * x) + l) → p
40. Sequence(i, i, -20, coeff1 - 1, 1) → l1, {-20, -19, -18, -17, -16, -15, -14, -13, -12, -11, -10, -9, -8, -7}
41. Sequence(i, i, coeff1 + 1, 20, 1) → l2, {-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}
42. Union(l1, l2) → l3
43. RandomElement(l3) → coeff2
44. Simplify((coeff2 * x) + m) → q
45. RandomElement(Union[Sequence[i, i, -20, -1, 1], Sequence[i, i, 1, 20, 1]]) → coeff3
46. Simplify((coeff3 * x) + o) → r
47. RandomElement(Union[Sequence[i, i, -20, -1, 1], Sequence[i, i, 1, 20, 1]]) → coeff4
48. Simplify(180 - p(x)) → s
49. RandomElement({1, 2, 3, 4}) → v
50. RandomElement({5, 6, 7, 8}) → w
51. RandomElement({0, 1}) → supptrue
52. Random(1, 2) → oddtrue
53. Random(20, 160) → sol_{1}
54. Random(-20, 20) → coeff1_{1}
55. RandomElement(Union[Sequence[i, i, -20, -1, 1], Sequence[i, i, 1, 20, 1]]) → s1_{1}
56. Simplify((coeff1_{1} * x) + l_{1}) → p_{1}
57. Simplify(180 - p_{1}(x)) → s_{1}
58. Random(20, 160) → sol_{2}
59. Random(-20, 20) → coeff1_{2}
60. Textfield(ans) → InputBox9