Geometric Representation of Complex Number i and Its Relationship with the Unit

Geometric Representation of Complex Number i and Its Relationship with the Unit
Loading the math board and drawing, please wait…
2016-01-14 04:21
In collections Complex Math
This GeoGebra applet dynamically demonstrates the geometric representation of the imaginary unit i on the complex plane, exploring the intrinsic relationship between i and the unit circle. Key mathematical concepts include vector representation of complex numbers, geometric properties of the unit circle, and the geometric interpretation of complex arithmetic operations. Construction highlights: Based on the construction summary, this applet comprehensively employs Vector commands for plotting complex vectors, Circle for constructing the unit circle, CircleArc to illustrate radian relationships, Angle to mark key angles, Intersect to determine intersections between vectors and the circle, Point for marking critical positions, Segment to connect relevant points, Polygon for constructing auxiliary figures, and Mirror for symmetry transformations. Suitable for high school and university mathematics classrooms to demonstrate the connection between complex numbers and trigonometry, as well as for inquiry-based learning exploring the geometric meaning of complex numbers.

GeoGebra Commands & Parameters

  1. Vector((0, 0), (1, 0)) → u
  2. Vector((0, -0.007890188248790508), (a^(0.5), a^(0.5))) → d
  3. Vector((0, 0), ((-a^(0.5)), (-a^(0.5)))) → e
  4. Vector((0, 0), (a^(0.5), (-a^(0.5)))) → f
  5. Vector((0, 0), ((-a^(0.5)), a^(0.5))) → g
  6. Point(b) → C
  7. Point(v) → D
  8. Point(w) → E
  9. Point(c) → F
  10. Point(d) → G
  11. Point(e) → H
  12. Point(g) → I
  13. Point(f) → J
  14. Point(f) → K
  15. Line(G, w) → h
  16. Point(v) → L
  17. Vector((0, 0), (a^(0.5), 0)) → i
  18. Point(i) → M
  19. Segment(M, G) → j
  20. Segment(D, E) → k
  21. Segment(E, C) → l
  22. Segment(C, F) → m
  23. Segment(F, D) → n
  24. Segment(G, I) → p
  25. Segment(I, H) → q
  26. Segment(H, J) → r
  27. Segment(J, M) → s
  28. Point(k) → A
  29. Distance(K, A) → distanceKA
  30. Distance(G, K) → distanceGK
  31. Point(v) → B
  32. Distance(B, A) → distanceBA
  33. Segment(B, A) → t_x
  34. Circle(K, H) → c_1
  35. Circle(K, C) → d_1
  36. Segment(I, J) → a_1
  37. Mirror(e, a_1) → e'
  38. Mirror(M, p) → M'
  39. Mirror(G, p) → G'
  40. Segment(M', G') → j'
  41. Distance(M, M') → distanceMM'
  42. Polygon(K, E, A) → poly1, a_2, k_1, e_2
  43. Point(d_1) → N
  44. Point(d_1) → O
  45. Segment(N, O) → b_1
  46. Factors(o) → matrix1
  47. ReducedRowEchelonForm(matrix1) → matrix2
  48. Segment(E, M') → h_1
  49. Point(Circle[E, 1.16]) → P
  50. Segment(E, P) → g_1
  51. Point(Circle[P, 1.16]) → Q
  52. Segment(P, Q) → i_1
  53. Point(Circle[E, 1.64]) → R
  54. Segment(E, R) → j_1
  55. Angle(M', E, R) → α
  56. Point(Circle[M', 1.16]) → S
  57. Segment(M', S) → l_1
  58. Point(Circle[E, 1.16]) → T
  59. Segment(E, T) → m_1
  60. CircleArc(K, I, H) → p_1
  61. CircleArc(K, H, G) → e_1
  62. CircleArc(K, E, I) → q_1
  63. Intersect(j', h_1) → V
  64. Point(Circle[M, 1.64]) → W
  65. Segment(M, W) → r_1
  66. Point(Circle[W, 1.16]) → Z
  67. Segment(W, Z) → s_1
  68. Point(Circle[Z, 1.16]) → A_1
  69. Segment(Z, A_1) → t_1
  70. Segment(T, V) → b_2
  71. Segment(D, T) → c_2
  72. Point(m_1) → B_1
  73. Segment(E, B_1) → d_2
  74. Segment(Z, T) → f_2
  75. Polygon(E, T, Z) → poly2, z_1, e_3, t_2
  76. Polygon(D, W, Z, T) → poly3, d_3, w_1, z_2, t_3
  77. Intersect(t_x, k_1) → C_1
  78. Point(Circle[E, 0.72]) → D_1
  79. Segment(E, D_1) → h_2
  80. Point(t_x) → E_1
  81. Point(Circle[E, 1.41]) → F_1
  82. Segment(E, F_1) → i_2
  83. Segment(E, Z) → j_2
  84. Mirror(E, k_2) → E'
  85. Mirror(M', k_2) → M''
  86. Segment(E', M'') → l_2
  87. Mirror(M', k_2) → M''_1
  88. Mirror(S, k_2) → S'
  89. Segment(M''_1, S') → m_2
  90. Mirror(M', k_2) → M''_2
  91. Mirror(G', k_2) → G''
  92. Segment(M''_2, G'') → j''
  93. Mirror(D, k_2) → D'
  94. Mirror(T, k_2) → T'
  95. Segment(D', T') → n_2
  96. Mirror(Z, k_2) → Z'
  97. Mirror(T, k_2) → T'_1
  98. Segment(Z', T'_1) → p_2
  99. Mirror(E, k_2) → E'_1
  100. Mirror(Z, k_2) → Z'_1
  101. Segment(E'_1, Z'_1) → q_2
  102. Mirror(B, k_2) → B'
  103. Mirror(A, k_2) → A'
  104. Segment(B', A') → r_2
  105. Mirror(E, k_2) → E'_2
  106. Mirror(F_1, k_2) → G_1
  107. Segment(E'_2, G_1) → s_2
  108. Mirror(M, k_2) → M'_1
  109. Mirror(G, k_2) → G'_1
  110. Segment(M'_1, G'_1) → j'_1
  111. Mirror(W, k_2) → W'
  112. Mirror(D, k_2) → D'_1
  113. Mirror(W, k_2) → W'_1
  114. Mirror(Z, k_2) → Z'_2
  115. Mirror(E, k_2) → E'_3
  116. Mirror(T, k_2) → T'_2
  117. Segment(E'_3, T'_2) → g_2
  118. Mirror(E, k_2) → E'_4
  119. Mirror(B_1, k_2) → H_1
  120. Segment(E'_4, H_1) → a_3
  121. Point(s_2) → I_1
  122. Point(i_2) → J_1
  123. Segment(I_1, J_1) → b_3
  124. Mirror(E, k_2) → E'_5
  125. Mirror(D_1, k_2) → K_1
  126. Segment(E'_5, K_1) → c_3

AI Drawing Prompt Reference

Draw the geometric representation of the imaginary unit i on the complex plane, including the unit circle and vectors. Start by drawing the unit vector u on the real axis, then draw the complex vectors d, e, f, and g, and mark the key points C, D, E, F, G, H, I, J, K, L, and M. Using these vectors and points, construct the unit circles c_1 and d_1, and auxiliary segments and polygons to illustrate the relationship between complex numbers and the unit circle.
The prompt above was compiled from the original drawing commands and is for reference only.