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ParametricPlot3D[
{{u*Cos[v] + u,
v/u*Sin[2v],
v*u/4},
{-u*Cos[v] - u,
-v/u*Sin[2v],
-v*u/4}},
{u, Pi/100, 2Pi},
{v, -4Pi, 4Pi},
PlotPoints -> {25, 50},
Boxed -> False,
Axes -> None]
ParametricPlot3D[
{(3u + 3u v^2 - u^3) (1 + v*u^2)^1/2,
(v^3 - 3v - 3u^2v)(1 + u*v^2)^1/2,
3(u^2 + v^2)(1 + u^2 + v^2)^1/2},
{u, -Pi, Pi}, {v, -Pi, Pi},
PlotRange -> {{-10, 50}, {-100, 10}, {5, 300}},
PlotPoints -> {50, 50},
Boxed -> False,
Axes -> None]
ParametricPlot3D[
{(y^3 - y^2 + y - 1)Cos[x],
(y^3 - y^2 + y - 1)*Sin[x],
Exp[y]/(Cos[x]^2 + Sin[x]^3)},
{x, 0, 2Pi},
{y, -2, 2},
Boxed -> False,
Axes -> None,
ViewPoint -> {0.431, 1.167, 0.838}]
(*題 ~アスファルトに咲く花~*)
ParametricPlot3D[
{0.5(2 + Cos[0.5u]),
1/(2 + Cos[5v]),
Exp[Cos[u]*Cos[v]]},
{u, 0, 2Pi},
{v, 0, 2Pi},
Boxed -> False,
Axes -> None]

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