二次方程因式分解拼图

GeoGebra 命令及参数

1. Random(-5, 5) → m2
2. Random(-5, 5) → l2
3. Random(-5, 5) → k2
4. Random(-5, 5) → j2
5. RandomElement(l1) → m
6. RandomElement(l1) → l
7. RandomElement(l1) → k
8. RandomElement(l1) → j
9. RemoveUndefined(Sequence[If[n(i), i], i, -20, 20]) → l4
10. If(Defined[RandomElement[l4]], RandomElement[l4], 6.5) → xs
11. Polygon(A, B, E, (x(A), y(E))) → q1, a, b, e, f
12. Polygon(A, B, C, (x(A), y(C))) → q2, a_1, b_1, c, g
13. Polygon(D, B, C, (x(D), y(C))) → q3, d, b_2, c_1, h
14. Polygon(D, B, E, (x(D), y(E))) → q4, d_1, b_3, e_1, i
15. Random(-5, 5) → k2_1
16. Random(-5, 5) → j2_1
17. Coefficients(q_1) → lq1
18. Coefficients(q_2) → lq2
19. Coefficients(q_3) → lq3
20. Coefficients(q_4) → lq4
21. Centroid(q1) → F
22. Centroid(q2) → G
23. Centroid(q3) → H
24. Centroid(q4) → I
25. Max(y(C) + 5, (aspect * (x(D) + 2)) + y(E) - 1) → ymax
26. If(ymax ≟ y(C) + 5, (y(C) - y(E) + 6) / (aspect) - 1, x(D) + 1) → xmax