分数比较 by Eva Lai

GeoGebra 命令及参数

1. LCM(d1, d2) → cd
2. Segment(A, B) → c
3. OrthogonalLine(A, c) → d
4. Vector(A, C) → u
5. Translate(B, u) → B'
6. Vector(A, D) → v
7. Translate(B, v) → B'_1
8. Translate(C, v) → C'
9. Translate(B', v) → B''
10. Segment(A, C) → e
11. Segment(C, B') → f
12. Segment(B', B) → g
13. Segment(D, C') → j
14. Segment(C', B'') → k
15. Segment(B'', B'_1) → l
16. Segment(B'_1, D) → m
17. Polygon(A, C, (x(C) + ((a * w)) / d1, y(C)), (x(A) + ((a * w)) / d1, y(A))) → poly1, q, r, f_1, g_1
18. Polygon(D, C', (x(C') + (b * w / d2), y(C')), (x(D) + (b * w / d2), y(D))) → poly2, d_1, c', s, t
19. Vector(A, (x(A) + (a * w / d1), y(A))) → arrow1
20. Vector(D, (x(D) + (b * w / d2), y(D))) → arrow2
21. Sequence(Segment[(x(A) + (w * i / cd), y(C)), (x(A) + (w * i / cd), y(A))], i, 1, cd - 1, 1) → cdlist1
22. Sequence(Segment[(x(A) + (w * i / d1), y(C)), (x(A) + (w * i / d1), y(A))], i, 1, d1 - 1, 1) → list1
23. Sequence(Segment[(x(A) + (w * i / d2), y(C')), (x(A) + (w * i / d2), y(D))], i, 1, d2 - 1, 1) → list2
24. Sequence(Segment[(x(A) + (w * i / cd), y(C')), (x(A) + (w * i / cd), y(D))], i, 1, cd - 1, 1) → cdlist2
25. Vector(H, I) → h
26. Sequence(Segment[(x(A) + (w * i / cd), y(H)), (x(A) + (w * i / cd), y(H + 0.5))], i, 0, cd, 1) → numline
27. Segment(arrowend2, (x(arrowend2), y(arrowend2) - 0.5)) → arrowl2
28. Segment(arrowend1, (x(arrowend1), y(arrowend1) - 0.5)) → arrowl1
29. Vector(H, K) → i