三维图形命令 如:Plo3D[Sin欧*y],{,-3,3}y,-3,3}, PlotPoints >40] t: Parametric Plot3D [u*Cos[v], u*Sin(v], Exp[-uA2/21, MV, 0, 2Pi]u,0, 41, PlotPoints->20, Box Ratios-> (1, 1,0. 43, Boxed->False, Axes->False] 球面: ParametricPlot3D[ Cos[u *Sin/v], Sin[u *Sin[v], Cos[v), u, 0, 2Pi),(v, 0, PiJ, AXes Label->x,y, 2) 双曲抛物面(马鞍面) ParametricPlot3D[u, v, (uA2-v2/2.5,u, 4, 4, v,. 443 AxesLabel>x2】]如: ParametricPlot3D [{u*Cos[v],u*Sin[v], Exp[-u^2/2]}, {v, 0, 2Pi},{u,0,4}, PlotPoints->20,BoxRatios-> {1,1,0.4}, Boxed->False,Axes->False] 三维图形命令 如: Plot3D [Sin[x*y]], {x, -3, 3},{y, -3, 3}, PlotPoints -> 40] 球面： ParametricPlot3D[{Cos[u]*Sin[v],Sin[u]*Sin[v], Cos[v]}, {u,0,2Pi},{v,0,Pi},AxesLabel->{x,y,z}] 双曲抛物面(马鞍面) ParametricPlot3D[{u,v, (u^2-v^2)/2.5},{u,-4,4},{v,- 4,4},AxesLabel->{x,y,z}]