解方程：使用逆运算

GeoGebra 命令及参数

1. Shuffle(1…6) → Type1List, {3, 6, 4, 5, 1, 2}
2. Shuffle(7…12) → Type2List, {10, 9, 8, 11, 7, 12}
3. Shuffle(19…24) → Type4List, {24, 20, 19, 23, 21, 22}
4. Join({{3}, Shuffle[{1, 2, 4}]}) → Round1
5. Insert(Last[Round1], Shuffle[Take[Round1, 1, 3]], RandomElement[2…4]) → Round2
6. Insert(Last[Round2], Shuffle[Take[Round2, 1, 3]], RandomElement[2…4]) → Round3
7. Insert(Last[Round3], Shuffle[Take[Round3, 1, 3]], RandomElement[2…4]) → Round4
8. Insert(Last[Round4], Shuffle[Take[Round4, 1, 3]], RandomElement[2…4]) → Round5
9. Insert(Last[Round5], Shuffle[Take[Round5, 1, 3]], RandomElement[2…4]) → Round6
10. Join({{18}, Shuffle[13…17]}) → Type3List
11. Join({Round1, Round2, Round3, Round4, Round5, Round6}) → TypeList
12. Sequence(Element[If[TypeList(k) ≟ 1, Type1List, TypeList(k) ≟ 2, Type2List, TypeList(k) ≟ 3, Type3List, Type4List], floor(k / 5) + 1], k, 1, 24) → Reihenfolge
13. Join({Sequence[3, k, 1, 12], Sequence[4, k, 1, 12]}) → TaskSignList1
14. SelectedIndex(dropdown1) → indexdd1
15. Sequence(If[TaskSignList1(k) ≟ 1, 2, TaskSignList1(k) ≟ 2, 1, TaskSignList1(k) ≟ 3, 4, TaskSignList1(k) ≟ 4, 3], k, 1, 24) → UTaskSignList1
16. Sequence(ParseToNumber[((((Text[Number1List(k)] * "") * Element[SignList, TaskSignList1(k)]) * "") * Text[Number2List(k)])], k, 1, 24) → Number3List
17. Join({Sequence[1, k, 1, 6], Sequence[2, k, 1, 6], Sequence[1, k, 1, 6], Sequence[2, k, 1, 6]}) → TaskSignList2
18. SelectedIndex(dropdown3) → indexdd3
19. Sequence(If[TaskSignList2(k) ≟ 1, 2, TaskSignList2(k) ≟ 2, 1, TaskSignList2(k) ≟ 3, 4, TaskSignList2(k) ≟ 4, 3], k, 1, 24) → UTaskSignList2
20. Textfield(input4) → InputBox4
21. Textfield(input3) → InputBox3
22. Textfield(input2) → InputBox2
23. Textfield(input1) → InputBox1
24. Shuffle(1…numberOfQuestions) → randomQuestions, {6, 8, 22, 13, 5, 16, 2, 9, 7, 1, 3, 24, 15, 21, 23, 19, 4, 10, 12, 20, 18, 14, 11, 17}
25. Textfield(input) → inputBox
26. Element(randomQuestions, Mod[questionCount - 1, Length[randomQuestions]] + 1) → randomQuestion
27. Element(SignTextList, TaskSignList1(question)) → txtSign
28. Midpoint(Corner[txt02, 3], Corner[txt02, 2] + (3.5, 0.05)) → PosSeg2
29. Segment(PosSeg2, PosSeg2 + (segLength, 0)) → seg2
30. Sequence(ParseToNumber[((((Text[Number3List(k)] * "") * Element[SignList, TaskSignList2(k)]) * "") * Text[Number4List(k)])], k, 1, 24) → Number5List
31. Invert(pixMat) → invPixMat
32. SelectedIndex(dropdown2) → indexdd2
33. Segment(PosSegSol, PosSegSol + (segLength / 2, 0)) → segSol
34. Text((((("\textsf{" * SignTextList(UTaskSignList1(question))) * " ") * ReplaceAll[Text[number2], ".", ","]) * "}"), Midpoint[segSol], false, true, 0, 1) → txtSolution3
35. Segment(PosSeg1, PosSeg1 + (segLength, 0)) → seg1
36. Text((((("\textsf{" * SignTextList(TaskSignList1(question))) * " ") * ReplaceAll[Text[number2], ".", ","]) * "}"), Midpoint[seg1], false, true, 0, 1) → txt03
37. Segment(PosSeg21, PosSeg21 + (segLength, 0)) → seg21
38. Segment(PosSeg11, PosSeg11 + (segLength, 0)) → seg11
39. Text((((("\textsf{" * SignTextList(TaskSignList2(question))) * " ") * ReplaceAll[Text[number4], ".", ","]) * "}"), Midpoint[seg11], false, true, 0, 1) → txt06
40. Segment(PosSegSol2, PosSegSol2 + (segLength / 2, 0)) → segSol2
41. Text((((("\textsf{" * SignTextList(UTaskSignList2(question))) * " ") * ReplaceAll[Text[number4], ".", ","]) * "}"), Midpoint[segSol2], false, true, 0, 1) → txtSolution4
42. SelectedIndex(dropdown4) → indexdd4
43. Text(txtSolution6, Midpoint[Corner[txtSolution2, 1], Corner[txtSolution2, 2]] + (0, -1.35), false, true, 0, 0) → txtSolution7