矩阵与向量操作

GeoGebra 命令及参数

1. Line(C, xAxis) → i
2. Line(D, i) → j
3. Point(i) → E
4. OrthogonalLine(E, i) → k
5. Intersect(j, k) → F
6. Point(i) → H
7. OrthogonalLine(H, i) → l
8. Point(l) → I
9. OrthogonalLine(I, l) → q
10. Point(l) → J
11. OrthogonalLine(J, l) → r
12. Point(q) → L
13. OrthogonalLine(L, q) → s
14. Intersect(s, r) → M
15. Textfield(t) → InputBox4
16. Polygon({(0, 0), (40, 0), (40, 200), (0, 200)}) → poly2
17. Textfield(n_1) → InputBox7
18. RotateText(" distance along track (meters)", 90°) → text8
19. Point(yAxis) → S
20. Segment(S, T) → g_1
21. Intersect(f_1, g_1) → U
22. Intersect(p_1, g_1) → W
23. Polygon((0, 3), (200, 3), (200, -5), (0, -5)) → poly1, b, c, e, i_1
24. Segment((0, 1.4), (200, 1.4)) → j_1
25. Segment((0, -0.2), (200, -0.2)) → k_1
26. Segment((0, -1.8), (200, -1.8)) → l_1
27. Segment((0, -3.4), (200, -3.4)) → m_1
28. TableText({{tab_5, tab_1, tab_2, tab_3, tab_4}, {A2, B2, C2, D2, E2}, {A3, B3, C3, D3, E3}, {A4, B4, C4, D4, E4}, {A5, B5, C5, D5, E5}, {A6, B6, C6, D6, E6}, {A12, B12, C12, D12, E12}}, "|_") → text7