电场矢量

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(yAxis) → B
3. Point(xAxis) → D
4. Polygon(A, B, C, D) → poly1, a, b, c, d
5. PointIn(poly1) → P1
6. PointIn(poly1) → P3
7. PointIn(poly1) → P2
8. PointIn(poly1) → P4
9. Sequence(Sequence[Vector[(a, b) + ((Efx(a, b), Efy(a, b)) * 0.125), (a, b) - ((Efx(a, b), Efy(a, b)) * 0.125)], a, 0, 8, 0.25], b, 0, 5, 0.25) → list1
10. Sequence(Sequence[Vector[(a, b) + ((Egx(a, b), Egy(a, b)) * 0.125), (a, b) - ((Egx(a, b), Egy(a, b)) * 0.125)], a, 0, 8, 0.25], b, 0, 5, 0.25) → list2