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潜艇坐标游戏

潜艇坐标游戏
几何画板及绘图内容加载中，请稍等……
2018-11-30 03:36
圆多边形三角函数解析几何几何作图
①本范例通过潜艇坐标游戏演示平面坐标系中点的定位与几何图形的构建；②涉及核心数学概念包括坐标系的运用、加法、余弦定理、相似三角形、数字运算及相关性；③作图要点提炼自构造摘要，使用了Random（随机数生成）、Circle（圆）、Ray（射线）、OrthogonalLine（垂线）、Intersect（交点）、CircumcircleArc（外接圆弧）、Midpoint（中点）、Sequence（序列）、If（条件判断）、Segment（线段）、Polygon（多边形）、Line（直线）、Rotate（旋转）、Mod（模运算）、Point（点）等GeoGebra命令与对象；④适合初中及以上学生，用于坐标系、几何作图及三角函数的实践应用。

GeoGebra 命令及参数

  1. Random(-10, 10) → bb
  2. Random(-10, 10) → aa
  3. Random(-10, 10) → cc
  4. Random(4, 15) → rr
  5. Circle(A, (((1.5 * v) - 1) * rr)) → c'
  6. Ray(A, (0, 0)) → a
  7. OrthogonalLine(A, a) → b
  8. Intersect(c', b) → B, C
  9. Intersect(c', a) → D, T
  10. CircumcircleArc(B, D, C) → d
  11. Midpoint(C, D) → E
  12. Midpoint(B, D) → F_2
  13. Ray(A', E) → e
  14. Ray(A', F_2) → f
  15. Intersect(d, e) → G,
  16. Intersect(d, f) → H,
  17. CircumcircleArc(G, D, H) → g
  18. Circle(I, 1) → h
  19. Sequence(Text[If[s < 10, " ", ""] + (s), (21.6 + (2 * Mod[s - 1, 3]), 7.75 - (2 * Div[s - 1, 3]))], s, 1, 12) → liste3
  20. Circle(J, 1) → k
  21. Sequence(Text[If[s ≟ 1, " ", If[s < 5, " ", ""]] + ((30 * (s - 1))) + "º", (21.25 + (2 * Mod[s - 1, 3]), -6.25 - (2 * Div[s - 1, 3]))], s, 1, 12) → liste4
  22. If(yB > -5, 5°, ((((xB - (3 * yB)) / 2 - 19 - 1) * 30))°) → ang
  23. If(ang ≟ α ∧ dist ≟ rr, true, false) → raz
  24. Segment(O, N) → m
  25. Circle(A, (((2 * v) - 1) * rr) - n) → p
  26. Sequence(Circle[A, (((1.5 * v) - 1) * rr) - i], i, 0, n, n / 10) → liste5
  27. Polygon(P, Q, R, S) → poly1, p_1, q, r_1, s
  28. Circle((0, 0), If[((2 * v) * rr) > 12, 0, ((2 * v) * rr)]) → c
  29. Midpoint(K, L) → U
  30. Midpoint(U, L) → V
  31. Midpoint(U, V) → W
  32. Midpoint(V, L) → Z
  33. Segment(K, C_1) → l
  34. Line(A, l) → i
  35. Segment(A, U) → t
  36. Intersect(c, t) → A_1, B_1
  37. Segment(U, A_1) → a_1
  38. Rotate(C_1, (6 * v), U) → L'
  39. Segment(U, L') → b_1
  40. Mod((v * 100), 2) → ab
  41. Segment(O, D_1) → j
  42. Circle(O, C_1) → g_1
  43. Point(g_1) → E_1
  44. Segment(O, E_1) → h_1
  45. Circle(F_1, 6.5 - abs(r / 4.5)) → q_1
  46. Line(F_1, l) → i_1
  47. Intersect(q_1, i_1) → G_1, H_1
  48. Line(J_1, r_1) → j_1
  49. Point(j_1) → N_1
  50. Line(N_1, l) → l_1
  51. Line(J_1, l) → m_1
  52. Point(m_1) → O_1
  53. Point(l_1) → P_1
  54. Intersect(l_1, r_1) → M_1
  55. Polygon(M_1, N_1, J_1, F) → poly2, m_2, n_1, j_2, f_2
  56. Point(l_1) → Q_1
  57. Point(m_1) → R_1
  58. Polygon(P_1, Q_1, R_1, O_1) → poly3, p_2, q_2, r_2, o_1
  59. Point(j_1) → S_1
  60. Polygon(S_1, T_1, O_1, J_1) → poly4, s_1, t_1, o_2, j_3
  61. Midpoint(s_1) → V_1
  62. Midpoint(o_2) → W_1
  63. Midpoint(S_1, J_1) → Z_1
  64. Midpoint(t_1) → A_2
  65. Segment(V_1, W_1) → a_2
  66. Segment(Z_1, A_2) → b_2
  67. Intersect(b_2, a_2) → B_2
  68. Circle(B_2, V_1) → c_2
  69. Sequence((x(O) + i, y(D_1)), i, -11, 11, 1) → liste1
  70. Sequence((x(N) + i, y(N)), i, -11, 11, 1) → liste6
  71. Sequence((x(C_1), y(C_1) + i), i, -11, 11, 1) → liste7
  72. Sequence((x(E_1), y(E_1) + i), i, -11, 11, 1) → liste8
  73. Ray(M_1, T_1) → c_1
  74. Sequence(Segment[Element[liste8, i], Element[liste7, i]], i, 0, 22) → liste10
  75. Sequence((x(D_1) + i, 0), i, -11, 11) → liste2
  76. Sequence(Segment[Element[liste1, i], Element[liste6, i]], i, 0, 22) → liste9
  77. Line(S, P) → d_1
  78. Line(J_1, S_1) → e_1
  79. Line(Q_1, e_1) → f_1
  80. Intersect(d_1, s) → M
  81. Intersect(d_1, f_1) → C_2
  82. Line(R, d_1) → k_1
  83. Intersect(e_1, k_1) → D_2
  84. Polygon(S, C_2, Q_1, S_1, D_2, R) → poly5, s_2, c_3, q_3, s_3, d_2, r_3
  85. Point(d_1) → E_2
  86. Line(E_2, p_1) → e_2
  87. Intersect(k_1, e_2) → G_2
  88. Polygon(E_2, P, Q, G_2) → poly6, e_3, p_3, q_4, g_2
  89. Sequence(O + (i, 0), i, -10, 10) → liste11
  90. Sequence(O + (0, i), i, -10, 10) → liste12
  91. Sequence(i, i, -10, 10) → liste13
  92. Sequence(Text[Element[liste13, i], (x(Element[liste11, i] - 0.42), y(Element[liste11, i] - 0.85))], i, 1, Length[liste13], 2) → liste14
  93. Sequence(Text[Element[liste13, i], (x(Element[liste12, i] - 1), y(Element[liste12, i] - 0.31))], i, 1, Length[liste13], 2) → liste15