三角函数图像绘制练习

GeoGebra 命令及参数

1. Textfield(a) → i1
2. Textfield(b) → i2
3. Textfield(c) → i3
4. Textfield(d) → i4
5. Textfield(e) → i5
6. Textfield(f) → i6
7. Textfield(g) → i7
8. Mode(l1) → l2
9. Dilate(A, If[0 < j ≤ 1, 1 - j, 0], D) → A'
10. Vector(A, A') → u
11. If(f ≟ y(C), "Yes!", "No. Check graph.") → i9
12. If(g ≟ y(B), "Yes!", "No. Check graph.") → i91_{1}
13. If(Length[l2] ≟ 0, "No digits repeat!", "Repeated digits exist.") → i92
14. If(e ≟ i, "Yes!", "Not quite.") → text2