互动时间线工具

GeoGebra 命令及参数

1. CircleArc(C, D, D_4) → c
2. Segment(D_4, D_1) → f
3. Segment(D_2, D) → g
4. Point(c) → A
5. Sequence(Text[If[i ≟ 12 ∧ Mod[i, 12] ≟ 0, 12, If[i ≟ 24, 0, Mod[i, 12]]] + " " + (If[i < 12, " A.M.", If[i ≟ 24, " A.M. Midnight", " P.M."]]), (i - 0.15, -0.1), true, true], i, 0, 24, 1) → listtimelabels
6. Sequence((i, 0), i, 0, 24, 1) → listxaxismainticks
7. Sequence((i, 0), i, 0, 24, 0.25) → listxaxisminorticks
8. Segment((0, 0), (24, 0)) → h
9. Line(B, E) → i
10. Point(i) → F