全微分

GeoGebra 命令及参数

1. CurveCartesian(t, b, f(t, b), t, -4, 4) → c
2. Derivative(f, x) → f_x
3. Derivative(f, y) → f_y
4. Polygon(P, U, Q) → poly1, f_1, c_1, e
5. CurveCartesian(a, t, f(a, t), t, -4, 4) → d
6. Polygon(P, S, V) → poly2, v, p, s
7. Polygon(P, U, W, V) → poly3, p_1, u, w, v_1
8. Polygon(U, E, W) → poly4, w_1, u_1, e_1
9. Polygon(V, F, W) → poly5, w_2, v_2, f_2
10. Polygon(Q, R, E, U) → poly6, q, r, e_2, u_2
11. Polygon(R, S, V, F) → poly7, r_1, s_1, v_3, f_3
12. OrthogonalPlane(A, yAxis) → i
13. OrthogonalPlane(A, xAxis) → j
14. Polygon(A, B, C, D) → poly8, a_1, b_1, c_2, d_1