斜率与角度 (2)

GeoGebra 命令及参数

1. Intersect(k, j) → C
2. Angle(A, C, B) → α
3. Intersect(k, eq3) → D
4. Angle(A, D, B) → β
5. Intersect(j, eq4) → E
6. Angle(A, E, B) → γ
7. Textfield(a) → InputBox1
8. Textfield(b) → InputBox2
9. Textfield(c) → InputBox3
10. Textfield(d) → InputBox4
11. Polygon(A, F, G) → t1, g, a_1, f
12. Segment(A, F) → h
13. Segment(F, G) → i
14. FractionText(a / b) → text4
15. FractionText(c / d) → text5
16. Polygon(B, H, I) → t2, i_1, b_1, h_1
17. Segment(B, H) → l
18. Segment(H, I) → m