三维棱锥

GeoGebra 命令及参数

1. Vector(B, E) → u
2. Vector(B, C) → v
3. Vector(B, D) → w
4. Sequence(F - (sin(i) * w + cos(i) * u), i, 0, α, α / h) → list1
5. Sequence(Segment[Element[list1, i], I], i, 0, h) → list2
6. Conic(Element[list1, 1], Element[list1, 10], Element[list1, 3], Element[list1, 15], Element[list1, 5]) → k
7. Sequence(Segment[Element[list1, i], Element[list1, i + 1]], i, 0, h) → list3
8. Polygon(list1) → poly1, , , ,