椭圆与三角函数的几何作图

GeoGebra 命令及参数

1. PointIn(e) → A
2. PointIn(e) → B
3. Segment(A, B) → f
4. SurdText(f) → text1
5. Textfield(j) → InputBox1
6. Textfield(k) → InputBox2
7. Point(Circle[A, sqrt((10 * j) + k)]) → C
8. Segment(A, C) → l
9. If(m < i, "Too short!", m > i, "Too long!", "This value is correct!") → text7
10. Mode(l1) → l2
11. If(Length[l2] ≟ 0, "No digits repeat!", "Repeated digits exist.") → text8
12. Intersect(eq1, p) → D
13. Polygon(A, D, B) → t1, b_1, a_1, d_1
14. Segment(A, D) → q
15. Segment(D, B) → r
16. Angle(B, D, A) → α