曲线下面积计算

GeoGebra 命令及参数

1. Intersect(f, yAxis, 1) → A
2. Point(f) → B
3. Point(xAxis) → C
4. Intersect(xAxis, yAxis) → D
5. Polygon(A, B, C, D) → q1, a, b, c, d
6. Point(f) → E
7. Point(xAxis) → F
8. Polygon(B, E, F, C) → q2, b_1, e, f_1, c_1
9. Intersect(f, xAxis, 2) → G
10. Polygon(E, G, F) → t1, f_2, e_1, g
11. PointIn(q1) → Pointq1
12. PointIn(q2) → Pointq2
13. PointIn(t1) → Pointt1
14. Segment(D, F) → i
15. Segment(G, D) → j
16. Polygon(A, B, E, G, D) → poly1, a_1, b_2, e_2, g_1, d_1
17. PointIn(poly1) → Pointpoly1