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What is a Function

What is a Function
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2018-03-29 10:18
FunctionCoordinate GeometryGeometric ConstructionGraphing
This example dynamically demonstrates the concept of a function, showing the relationship between input and output. Core math concepts include function definition, linear functions, and graph plotting. Construction highlights from the summary involve commands like CurveCartesian, Circle, Polygon, Point, and more. Suitable for middle school students and above for learning functions or classroom demonstrations.

GeoGebra Commands & Parameters

  1. CurveCartesian(x(A) + ((r * (a + (1 / b * tanh((b * sin((n * t) + v)))))) * cos(t + v)), y(A) + ((r * (a + (1 / b * tanh((b * sin((n * t) + v)))))) * sin(t + v)), t, 0, 6.28319) → c
  2. CurveCartesian(x(B) + ((R * (a + (1 / b * tanh((b * sin((n * t) - v)))))) * cos(t - v)), y(B) + ((R * (a + (1 / b * tanh((b * sin((n * t) - v)))))) * sin(t - v)), t, 0, 6.28319) → d
  3. Circle(B, R + 0.9) → e
  4. Circle(A, r + 0.9) → g
  5. Circle(A, r + 0.9) → h
  6. CurveCartesian(x(A) + ((r * (a + (1 / b * tanh((b * sin((n * t) + v)))))) * cos(t + v)), y(A) + ((r * (a + (1 / b * tanh((b * sin((n * t) + v)))))) * sin(t + v)), t, 0, 6.28319) → i
  7. CurveCartesian(x(C) + ((R * (a + (1 / b * tanh((b * sin((n * t) - v)))))) * cos(t - v)), y(C) + ((R * (a + (1 / b * tanh((b * sin((n * t) - v)))))) * sin(t - v)), t, 0, 6.28319) → j
  8. CurveCartesian(x(C) + ((r / 2 * (a + (1 / b * tanh((b * sin((n * t) + v)))))) * cos(t + v)), y(C) + ((r / 2 * (a + (1 / b * tanh((b * sin((n * t) + v)))))) * sin(t + v)), t, 0, 6.28319) → o
  9. Polygon(D, E, F, G) → poly1, d_1, e_1, f_1, g_1
  10. Point(g_1) → H
  11. Point(g_1) → I
  12. Polygon(H, I, J, K) → poly2, h_1, i_1, j_1, k
  13. Polygon(L, K, J, M) → poly3, l, k_1, j_2, m
  14. Point(f_1) → N
  15. Polygon(N, O, P, F) → poly4, n_1, o_1, p, f_2
  16. Textfield(s) → ChampTexte1
  17. Vector(Q, S) → u
  18. Textfield(f) → ChampTexte2
  19. Vector(U, V) → w
  20. Vector(W, Z) → z
  21. Polygon(C_1, M, L, D_1) → poly5, c_1, m_1, l_1, d_2
  22. Polygon(E_1, F_1, G_1, H_1) → poly6, e_2, f_3, g_2, h_2
  23. Semicircle(F_1, G_1) → q
  24. Mod(v / °, 2) → t_1
  25. Semicircle(F_1, G_1) → p_1
  26. Segment(A_1, B_1) → a_1
  27. LaTeX(f) → textFromFunction
  28. TextToUnicode(textFromFunction) → L_3
  29. Text("(" + s + ")") → textFormulaValue
  30. TextToUnicode(textFormulaValue) → L_n
  31. Remove(Insert[L_n, L_3, IndexOf[120, L_3]], {120}) → L_4
  32. Remove(Insert[L_n, L_4, IndexOf[120, L_4]], {120}) → L_5
  33. Remove(Insert[L_n, L_5, IndexOf[120, L_5]], {120}) → L_6
  34. Remove(Insert[L_n, L_6, IndexOf[120, L_6]], {120}) → L_7
  35. Remove(Insert[L_n, L_7, IndexOf[120, L_7]], {120}) → L_8
  36. Remove(Insert[L_n, L_8, IndexOf[120, L_8]], {120}) → L_9
  37. RemoveUndefined({L_3, L_4, L_5, L_6, L_7, L_8, L_9}) → L_{10}
  38. Element(L_{10}, Length[L_{10}]) → L_{11}
  39. LaTeX("= " + (UnicodeToText[L_{11}]), true) → textEnumFunction

AI Drawing Prompt Reference

Draw a dynamic function graph to show the relationship between input and output. Start by drawing two circles, then plot two parameterized curves. Next, draw two semicircles and several polygons. Finally, add some points and text to display the function definition.
The prompt above was compiled from the original drawing commands and is for reference only.