线性函数与圆锥的Open Middle数学范例

GeoGebra 命令及参数

1. Textfield(a) → InputBox1
2. Textfield(b) → InputBox2
3. Textfield(c) → InputBox3
4. Textfield(d) → InputBox4
5. Textfield(f) → InputBox5
6. Textfield(g) → InputBox6
7. Surface(h, α, xAxis) → e
8. Textfield(j) → InputBox7
9. If(correct, "√", "X") → text4
10. Mode(l1) → l2
11. Sequence(CountIf[x ≟ i, l1], i, 0, 9, 1) → l3, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
12. CountIf(x > 1, l3) → l
13. CountIf(x ≥ 3, l3) → k
14. Max(l3) → m
15. Intersect(xAxis, yAxis) → D
16. Segment(B, D) → p
17. Segment(B, F) → n
18. Angle(F, E, D) → β