中点垂线构造

GeoGebra 命令及参数

1. PointIn(e) → B
2. PointIn(e) → A
3. Segment(A, B) → f
4. LineBisector(f) → g
5. Textfield(h) → InputBox1
6. Textfield(i) → InputBox2
7. Textfield(j) → InputBox3
8. If(p ≟ g, "√", "X") → text3
9. Mode(l1) → l2
10. If(Length[l2] ≟ 0, "No digits repeat!", "You have repeated digits.") → text4
11. If(Distance[A, C] ≟ Distance[B, C], "√", "X") → text5