喷水器与三角形中心

GeoGebra 命令及参数

1. Polygon(A, B, C) → poly1, AB, BC, CA
2. Sequence(D + ((sqrt(RandomUniform[0, 1]) * r); RandomUniform[0, 6.28319]), i, 1, points) → list1
3. Circle(D, r) → c
4. Rotate(F, Theta, D) → F'
5. Segment(F', D) → Water
6. Distance(D, poly1) → CircleDistance
7. Segment(D, F') → WaterRotate
8. Segment(H, I) → Area_{yard}
9. Segment(E, G) → f
10. Segment(J, K) → g
11. Segment(L, M) → e
12. Polygon(E, L, M, G) → poly2, e_1, l, m, g_1
13. Polygon(N, I, H, E) → poly3, n, i, h, e_2
14. Polygon(L, J, K, M) → poly4, l_1, j, k, m_1