矩阵与线性变换 by Anthony OR 柯志明

GeoGebra 命令及参数

1. Vector((0, 0), A) → a
2. Vector((0, 0), B) → u
3. Vector((0, 0), C) → v
4. Sequence(Segment[((sgn(x(a)) * i), y(a)), ((sgn(x(a)) * i), 0)], i, 0, abs(x(a))) → list3
5. Sequence(Segment[(x(a), (sgn(y(a)) * i)), (0, (sgn(y(a)) * i))], i, 0, abs(y(a))) → list4
6. Sequence(Segment[((sgn(x(a)) * i) * B) + (y(a) * C), ((sgn(x(a)) * i) * B)], i, 0, abs(x(a))) → list2
7. Sequence(Segment[((sgn(y(a)) * i) * C) + (x(a) * B), ((sgn(y(a)) * i) * C)], i, 0, abs(y(a))) → list1
8. Sequence(Segment[(3 * B) + (i * C), (i * C)], i, 0, 4) → l1
9. Sequence(Segment[(4 * C) + (i * B), (i * B)], i, 0, 3) → l2
10. Sequence(Segment[(0, 4) + (i, 0), (i, 0)], i, 0, 3) → l3
11. Sequence(Segment[(3, 0) + (0, i), (0, i)], i, 0, 4) → l4