黎曼和与积分

GeoGebra 命令及参数

1. CreatePanel(240) → poly1, a
2. SelectedElement(Function) → f
3. Point(f) → A
4. Point(f) → B
5. LeftSum(f, x(A), x(B), n) → LeftSum_1
6. Integral(f, x(A), x(B)) → Integral_1
7. UpperSum(f, x(A), x(B), n) → UpperSum_1
8. LowerSum(f, x(A), x(B), n) → LowerSum
9. Sequence(x(A) + (i * dx), i, 0, n) → subint
10. Take(subint, 2, n + 1) → right
11. Take(subint, 1, n) → left
12. Sequence(Polygon[(Element[left, i], 0), (Element[right, i], 0), (Element[right, i], Element[rightheights, i]), (Element[left, i], Element[rightheights, i])], i, 1, n) → rightRect
13. Line(C, yAxis) → b
14. Line(D, b) → c
15. Point(c) → E
16. OrthogonalLine(E, b) → d
17. OrthogonalLine(C, c) → e
18. Point(c) → F
19. OrthogonalLine(F, b) → g
20. Point(b) → G
21. OrthogonalLine(G, c) → h
22. Point(c) → H
23. OrthogonalLine(H, b) → i
24. Point(c) → I
25. OrthogonalLine(I, b) → j
26. Point(c) → J
27. OrthogonalLine(J, b) → k
28. Point(c) → K
29. OrthogonalLine(K, b) → l
30. Point(c) → L
31. OrthogonalLine(L, b) → m
32. Point(b) → M
33. OrthogonalLine(M, c) → p
34. Intersect(b, d) → N
35. Intersect(c, e) → O
36. Intersect(c, h) → P
37. Point(b) → Q
38. Intersect(b, i) → R
39. Intersect(b, j) → S
40. Intersect(b, k) → T
41. Point(b) → U
42. Intersect(b, m) → V
43. Intersect(c, p) → W
44. Polygon(N, C, O, E) → poly2, n_1, c_1, o, e_1
45. Polygon(Q, G, P, F) → poly3, q, g_1, p_1, f_1
46. Polygon(R, S, I, H) → poly4, r, s, i_1, h_1
47. Polygon(T, U, K, J) → poly5, t, u, k_1, j_1
48. Polygon(V, M, W, L) → poly6, v, m_1, w, l_1