指数与对数函数的关系

GeoGebra 命令及参数

1. Point(c) → A
2. OrthogonalLine(A, c) → d
3. Intersect(f, d, (3, 8)) → B
4. Line(B, c) → e
5. Intersect(e, i) → D
6. Rotate(A, 90°, O) → A'
7. Line(A', c) → h
8. Intersect(g, h, (7.999999998704076, 2.999999999766297)) → C
9. OrthogonalLine(C, c) → j
10. Intersect(c, j) → E
11. Segment(B, A) → k
12. Segment(B, D) → l
13. Segment(A', C) → m
14. Segment(C, E) → n
15. Point(f) → label_{exp}
16. Point(g) → label_{log}