线性关系演示

GeoGebra 命令及参数

1. Vector(A, B) → u
2. Vector(A, C) → v
3. Textfield(M) → InputBox1
4. Polygon(A, B, B + C, C) → q1, f, g, h, i
5. Polygon((M * A), (M * B), (M * (B + C)), (M * C)) → q2, j, k, l, m
6. Sequence(Line[(M * ((-c), t)), (M * (c, t))], t, (-c), c) → Mlist1
7. Sequence(Line[((-c), t), (c, t)], t, (-c), c) → list1
8. Sequence(Line[(M * (t, (-c))), (M * (t, c))], t, (-c), c) → Mlist2
9. Sequence(Line[(t, (-c)), (t, c)], t, (-c), c) → list2
10. Union(Mlist1, Mlist2) → lattice
11. If(Determinant[M] ≠ 0, lattice) → showLattice