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Sine Curve from Unit Circle

Sine Curve from Unit Circle
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2015-11-18 13:58
CircleFunctionTrigonometry
This example demonstrates how to generate a sine curve using a unit circle. Key mathematical concepts include the sine function and the unit circle. The construction involves commands such as point, circle, intersect, rotate, angle, and segment. Suitable for high school mathematics education, particularly in trigonometry and geometric construction.

GeoGebra Commands & Parameters

  1. Point(xAxis) → A
  2. Circle(A, 1) → c
  3. Intersect(c, xAxis, 2) → B
  4. Rotate(B, α, A) → P
  5. Angle(B, A, P) → β
  6. Segment(A, P) → a
  7. OrthogonalLine(P, xAxis) → b
  8. Intersect(b, xAxis) → C
  9. Segment(C, P) → g
  10. Ray(H, U) → q
  11. Ray(I, V) → r
  12. Segment(V, U) → l
  13. Segment(X, W) → m
  14. Segment(Z, Y) → n
  15. Segment(G, F) → p
  16. Segment(J, K) → s
  17. Segment(K, O) → t
  18. Segment(K, Q) → a_1
  19. Segment(M, A_1) → b_1
  20. Segment(M, B_1) → c_1
  21. Segment(J, C_1) → d_1
  22. Segment(J, D_1) → e_1
  23. Segment(L, N) → f_1
  24. Segment(L, E) → g_1
  25. Segment(M, M') → h_1
  26. Segment(C, P) → e
  27. Segment(A, C) → f
  28. Point(yAxis) → R
  29. Point(yAxis) → T
  30. Segment(R, T) → h