直线方程 by Nadezhda Konstantinova

GeoGebra 命令及参数

1. Textfield(a) → inputBox1
2. Textfield(b) → inputBox2
3. Textfield(c) → inputBox3
4. Textfield(d) → inputBox4
5. Line(A, B) → e
6. Line(B, C) → h
7. Slope(e) → i
8. Slope(h) → j
9. Segment(A, B) → k
10. OrthogonalLine(A, xAxis) → l
11. OrthogonalLine(B, l) → m
12. Intersect(l, m) → D
13. Segment(B, D) → n
14. Segment(D, A) → p
15. Line(C, e) → s
16. OrthogonalLine(B, e) → a_1
17. LineBisector(k) → b_1
18. Midpoint(k) → E
19. Slope(b_1) → c_1
20. Point(e) → F
21. Intersect(e, yAxis) → G