自我评测：正负数加减法（关联Google表格记录）

GeoGebra 命令及参数

1. Random(1, mx) → n1
2. Random(1, mx) → n2
3. Max(n1, n2) → b_1
4. Min(n1, n2) → s_1
5. Min(abs(Element[listnum1, type]), abs(Element[listnum2, type])) → zp
6. Sequence(Circle[(x(A) + (i * sp), y(A)), r], i, 0, 12) → listnum1n
7. Sequence(Circle[(x(A) + (i * sp), y(A)), r], i, 0, abs(Element[listnum1, type]) - 1) → listnum1d
8. Sequence(Circle[(x(B) + (i * sp), y(B)), r], i, 0, abs(Element[listnum2, type]) - 1) → listnum2d
9. Sequence(Circle[(x(C) + (i * sp), y(C)), r], i, 0, abs(Element[listnum2u, type]) - 1) → listnum2un
10. Textfield(mx) → InputBox1
11. If(Element[listnum2u, type] < 0, true, false) → l2n
12. Text(If[l2n, ")", ""], (x(C) + ((2.5 * r) * (abs(Element[listnum2, type]) - 0.5)), y(C) - 0.3)) → textrightbracket
13. Textfield(txtin) → InputBox2
14. Line(P4, xAxis) → l1
15. Line(P1, xAxis) → l2
16. Polygon(P1, P2, P3, P4) → poly1, p1, p2, p3, p4
17. If((Element[listnum1, type] * Element[listnum2, type]) > 0, true, false) → ds
18. Text(Element[listsgn, type] + (If[l2n, "(", ""]), (x(C) - (2.5 * r) - 0.6, y(C) - 0.3)) → textleftnegativebracket
19. Textfield(classid) → InputBox3
20. Textfield(classind) → InputBox4
21. Text(Element[list1, type]) → textdata1
22. Text(Element[list2, type]) → textdata2