测量二维图形面积 by GeoGebra Institute of Hong Kong

GeoGebra 命令及参数

1. Segment(X0, X0 + (0, 0.25)) → g
2. Segment(X0, X0 + (0, mark)) → h
3. Segment(X0 + (1, 0), X0 + (1, mark)) → i
4. Vector(X0 + (0, mark / 2), X0 + (1, mark / 2)) → u
5. Vector(X0 + (1, mark / 2), X0 + (0, mark / 2)) → v
6. Segment(Y0 - (mark, 0), Y0) → j
7. Segment(Y0 - (mark, 1), Y0 - (0, 1)) → k
8. Vector(Y0 - (mark / 2, 1), Y0 - (mark / 2, 0)) → w
9. Vector(Y0 - (mark / 2, 0), Y0 - (mark / 2, 1)) → z
10. Segment((3, -1), (3, 3)) → l
11. Translate(A, Vector[(t1 * Vector[A, D])]) → A'
12. Translate(B, Vector[(t1 * Vector[A, D])]) → B'
13. Translate(E, Vector[(t1 * Vector[A, D])]) → E'
14. Polygon(A', B', E') → poly1, e', a', b'
15. Translate(B, Vector[(t2 * Vector[B, A])]) → B'_1
16. Translate(C, Vector[(t2 * Vector[B, A])]) → C'
17. Translate(E, Vector[(t2 * Vector[B, A])]) → E'_1
18. Polygon(B'_1, C', E'_1) → poly2, e'_1, b'_1, c'
19. Translate(C, Vector[(t3 * Vector[D, A])]) → C'_1
20. Translate(D, Vector[(t3 * Vector[D, A])]) → D'
21. Translate(E, Vector[(t3 * Vector[D, A])]) → E'_2
22. Polygon(C'_1, D', E'_2) → poly3, e'_2, c'_1, d'
23. Translate(D, Vector[(t4 * Vector[A, B])]) → D'_1
24. Translate(E, Vector[(t4 * Vector[A, B])]) → E'_3
25. Translate(A, Vector[(t4 * Vector[A, B])]) → A'_1
26. Polygon(D'_1, E'_3, A'_1) → poly4, a'_1, d'_1, e'_3
27. Polygon(A', B', E') → poly1', e'_4, a'_2, b'_2
28. Polygon(B'_1, C', E'_1) → poly2', e'_5, b'_3, c'_2
29. Polygon(C'_1, D', E'_2) → poly3', e'_6, c'_3, d'_2
30. Polygon(D'_1, E'_3, A'_1) → poly4', a'_3, d'_3, e'_7
31. Polygon(A, B, C, D) → poly5, a, b, c, d
32. Polygon(A, B, E) → poly6, e, a_1, b_1
33. Polygon(B, C, E) → poly7, e_1, b_2, c_1
34. Polygon(C, D, E) → poly8, e_2, c_2, d_1
35. Polygon(A, D, E) → poly9, e_3, a_2, d_2