逻辑斯蒂增长模型动态演示 by H.-J. Elschenbroich. GeoGebra Institut NRW

GeoGebra 命令及参数

1. Textfield(ST) → TxtST
2. Textfield(ET) → TxtET
3. Textfield(SA) → TxtSA
4. Textfield(SB) → TxtSB
5. Textfield(SC) → TxtSC
6. Textfield(vA) → TxtvA
7. Textfield(vB) → TxtvB
8. Textfield(vC) → TxtvC
9. LaTeX(vA, false, false) → TextvA
10. LaTeX(vB, false, false) → TextvB
11. LaTeX(vC, false, false) → TextvC
12. First(Sequence[(Element[L_T, i + 1], Element[L_A, i + 1]), i, 0, n + 1], Iteration + 1) → L_{TAE}
13. PolyLine(L_{TAE}) → Str_{AE}
14. PolyLine(L_{TBE}) → Str_{BE}
15. PolyLine(L_{TCE}) → Str_{CE}
16. Element(L_A, Iteration + 1) → Bestand_A
17. Element(L_B, Iteration + 1) → Bestand_B
18. Element(L_C, Iteration + 1) → Bestand_C
19. Element(L_{vA}, Iteration) → Aenderung_A
20. Element(L_{vB}, Iteration) → Aenderung_B
21. Element(L_{vC}, Iteration) → Aenderung_C
22. First(Sequence[(Element[L_T, i + 1], Element[L_{vA}, i + 1]), i, 0, n], Iteration) → L_{TvAE}
23. PolyLine(L_{TvAE}) → Str_{vAE}
24. PolyLine(L_{TvBE}) → Str_{vBE}
25. PolyLine(L_{TvCE}) → Str_{vCE}
26. Element(L_{TCE}, Iteration) → DrA
27. Element(L_{TCE}, Iteration + 1) → DrC
28. Polygon(DrA, DrB, DrC) → Dreieck_C, dr3, dr2, dr1
29. Element(L_{TvCE}, Iteration) → vCE
30. Segment(TX, vCE) → Strecke_{vC}
31. Sequence((Element[L_T, i + 1], Element[L_A, i + 1]), i, 0, n) → L_{TAG}
32. Sequence((Element[L_T, i + 1], Element[L_{vA}, i + 1]), i, 0, n - 1) → L_{TvAG}
33. If(b, 1, 5) → d
34. PolyLine(L_{TAG}) → Str_{AG}
35. PolyLine(L_{TvAG}) → Str_{vAG}
36. PolyLine(L_{TBG}) → Str_{BG}
37. PolyLine(L_{TvBG}) → Str_{vBG}
38. PolyLine(L_{TCG}) → Str_{CG}
39. PolyLine(L_{TvCG}) → Str_{vCG}