几何基础术语交互演示

GeoGebra 命令及参数

1. Line(A, B) → a
2. Segment(A, B) → b
3. Ray(A, B) → c
4. Intersect(c, x = x(Corner[2])) → lin_r
5. Vector(B, lin_r) → vec_{ray}
6. Intersect(a, x = x(Corner[1])) → lin_l
7. Vector(A, lin_l) → vec_{left}
8. Vector(B, lin_r) → vec_{right}
9. Rotate(B, angleSlider, A) → C
10. Angle(B, A, C) → α
11. Vector(A, lin_r) → initialRay
12. Ray(A, C) → terminalRay
13. Circle(A, D) → d
14. Point(initialRay) → E
15. Ellipse(B, E, F) → e
16. Point(terminalRay) → G
17. Ellipse(C, G, H) → f
18. Angle(C, A, B) → β
19. Angle(B, A, Rotate[B, 359.9*°, A]) → γ
20. OrthogonalLine(A, initialRay) → g
21. Point(g) → I
22. Ray(A, I) → perpen_{ray}
23. Angle(C, A, I) → δ
24. Angle(C, A, lin_l) → ε