算术数列与数列求和测验：演示数列图形与求和公式

GeoGebra 命令及参数

1. Textfield(stansq10) → InputBox10
2. Textfield(stansq9) → InputBox9
3. Random(3, 5) → nNq9
4. RandomElement(flist) → fF
5. Sequence(fF(n), n, 1, nNq9) → l1
6. Sum(l1) → ansq9
7. AreEqual(InputBox9, ansq9) → corr9
8. Random(4, 12) → mM
9. Random(5, 12) → nN2ran
10. Textfield(stansq4) → InputBox4
11. Textfield(stansq5) → InputBox5
12. Textfield(stansq6) → InputBox6
13. Textfield(stansq7) → InputBox7
14. Textfield(stansq8) → InputBox8
15. RandomElement(dlist) → dD
16. Random(5, 50) → alistn
17. Random(-20, 10) → alistp
18. If(dD ≤ 0, alistn, alistp) → aA
19. AreEqual(InputBox10, ansq10) → corr10
20. Simplify(tT) → tT1
21. Textfield(stansq1) → InputBox1
22. Random(8, 20) → nN1
23. AreEqual(InputBox7, ansq7) → corr7
24. AreEqual(InputBox6, ansq6) → corr6
25. AreEqual(InputBox8, ansq8) → corr8
26. AreEqual(InputBox5, ansq5) → corr5
27. AreEqual(InputBox4, ansq4) → corr4
28. AreEqual(InputBox1, ansq1) → corr1
29. Corner(5) → dims
30. Textfield(stfunq2) → InputBox2
31. Textfield(stfunq3) → InputBox3