线性方程的编写（一）

GeoGebra 命令及参数

1. Sequence(i, i, -10, -1, 1) → denomlista
2. Sequence(i, i, 1, 10, 1) → denomlistb
3. Union(denomlista, denomlistb) → denomlist
4. Sequence(i, i, -8, 8, 1) → blist
5. RandomElement(blist) → b
6. Sequence(i, i, -8, 8, 1) → numlist
7. RandomElement(numlist) → rise
8. RandomElement(denomlist) → run
9. Intersect(a, x = 0) → A
10. Sequence(i, i, -8, y(A), 1) → y_a
11. Sequence(i, i, y(A) + 1, 8, 1) → y_b
12. Sequence(i, i, -10, x(A) - 1, 1) → x_a
13. Sequence(i, i, x(A) + 1, 10, 1) → x_b
14. Line(D, A) → c
15. Segment(C, A) → d
16. Segment(C, D) → e
17. Polygon(D, C, A) → poly1, a_1, d_1, c_1
18. Textfield(mguess) → InputBox1
19. Textfield(bguess) → InputBox2
20. FractionText(mguess) → text4
21. Slope(c) → i
22. Line(D, A) → l