用数轴和圆比较分数大小

GeoGebra 命令及参数

1. Line(A, yAxis) → f
2. Point(f) → B
3. Point(f) → C
4. Circle(B, linelength) → c
5. Circle(C, linelength) → d
6. OrthogonalLine(B, f) → g
7. OrthogonalLine(C, f) → h
8. Intersect(c, g, 1) → D
9. Intersect(d, h, 1) → E
10. Segment(B, D) → i
11. Segment(C, E) → j
12. Sequence(B + ((i * linelength / frac1denom), 0), i, 1, frac1denom) → frac1intervals
13. Sequence(C + ((i * linelength / frac2denom), 0), i, 1, frac2denom) → frac2intervals
14. Segment(B, B + ((frac1num * linelength / frac1denom), 0)) → frac1segment
15. Segment(C, C + ((frac2num * linelength / frac2denom), 0)) → frac2segment
16. Segment(F, G) → k
17. Line(H, f) → l
18. Point(l) → I
19. Point(l) → J
20. Circle(I, circlesize) → e
21. Circle(J, circlesize) → p
22. Intersect(e, l, 2) → K
23. Intersect(p, l, 2) → L
24. Segment(I, K) → m
25. Segment(J, L) → n
26. Sequence(Segment[Rotate[I, (i * angle1rotation), I], Rotate[K, (i * angle1rotation), I]], i, 1, frac1denom) → frac1wedges
27. Sequence(Segment[Rotate[J, (i * angle2rotation), J], Rotate[L, (i * angle2rotation), J]], i, 1, frac2denom) → frac2wedges
28. CircleSector(I, K, Rotate[K, (frac1num * angle1rotation), I]) → frac1Sector
29. CircleSector(J, L, Rotate[L, (frac2num * angle2rotation), J]) → frac2Sector