二次多项式函数探索

GeoGebra 命令及参数

1. Polygon(A, B, C) → çokgen1, c, a, b
2. AngularBisector(A, B, C) → f
3. AngularBisector(A, C, B) → g
4. AngularBisector(B, A, C) → h
5. Intersect(f, g) → D
6. LineBisector(c) → i
7. LineBisector(b) → j
8. LineBisector(a) → k
9. Intersect(i, j) → E
10. Midpoint(c) → F
11. Midpoint(b) → G
12. Midpoint(a) → H
13. Segment(C, F) → l
14. Segment(B, G) → m
15. Segment(A, H) → n
16. Intersect(l, m) → I
17. OrthogonalLine(C, c) → p
18. OrthogonalLine(A, a) → q
19. OrthogonalLine(B, b) → r
20. Intersect(p, q) → J