>    plot3d([x,x^2,z],x=-2..2,z=-3..3);

[Maple Plot]

                                                                                                cylinder with equation: y = x^2

>    plot3d([cos(x)*cos(y), cos(x)*sin(y), sin(x)], x = 0 .. 2*Pi, y = 0 .. Pi);

[Maple Plot]

                                                                                                Sphere of radius 1, with equation x^2+y^2+z^2 = 1

>    plot3d([3*cos(x)*cos(y),5*cos(x)*sin(y), 2*sin(x)],x=0..2*Pi,y=0..Pi);

[Maple Plot]

                                                                              ellipsoid with equation (x/3)^2+(y/5)^2+(z/2)^2 = 1

>    plot3d([x, y, x^2+y^2], x = -2 .. 2, y = -2 .. 2);

[Maple Plot]

                                                                                       Paraboloid with equation z = x^2+y^2

>    plot3d([x,(x/4)^2+z^2,z],x=-4..4,z=-1..1);

[Maple Plot]

                                                                                        Paraboloid with equation y = (x/4)^2+z^2

>    plot3d([u*cos(v),u*sin(v),u],u=-2..2,v=0..2*Pi);

[Maple Plot]

                                                                                           cone with equation: z^2 = x^2+y^2

>    plot3d([u*cos(v),u,u*sin(v)],u=-2..2,v=0..2*Pi);

[Maple Plot]

                                                                                       cone with equation: y^2 = x^2+z^2

>    plot3d([u,5*u*cos(v),u*sin(v)],u=-2..2,v=0..2*Pi);

[Maple Plot]

                                                                                           cone with equation: x^2 = (y/5)^2+z^2

>    plot3d([sqrt(1+u^2)*cos(v),sqrt(1+u^2)*sin(v),u],u=-2..2,v=0..2*Pi);

[Maple Plot]

                                                                     Hyperboloid of one sheet with equation:   x^2+y^2-z^2 = 1

>    plot3d([sqrt(1+u^2)*cos(v),u,sqrt(1+u^2)*sin(v)],u=-3..3,v=0..2*Pi);

[Maple Plot]

                                                                        Hyperboloid of one sheet with equation: x^2-y^2+z^2 = 1

>    plot3d([u,sqrt(1+u^2)*cos(v),sqrt(1+u^2)*sin(v)],u=-3..3,v=0..2*Pi);

[Maple Plot]

                                                                  Hyperboloid of one sheet with equation: -x^2+y^2+z^2 = 1

>    plot3d([ u*cos(v), 2*u*sin(v), sqrt(u^2+1)], u=-2..2,v=0..2*Pi);

[Maple Plot]

                                                                      Hyperboloid of two sheets with equation: -x^2-(y/2)^2+z^2 = 1

>    plot3d([ u*cos(v), 2*u*sin(v), -sqrt(u^2+1)], u=-2..2,v=0..2*Pi);

[Maple Plot]

                                                  Lower part of the hyperboloid of two sheets with equation -x^2-(y/2)^2+z^2 = 1

>    plot3d([x,y,(y/3)^2-x^2],x=-1..1,y=-3..3);

[Maple Plot]

                                                                                         Hyperbolic paraboloid with equation: z = (y/3)^2-x^2

>    plot3d([x,(z/3)^2-x^2,z],x=-1..1,z=-3..3);

[Maple Plot]

                                                                                    Hyperbolic paraboloid with equation: y = (z/3)^2-x^2

>    plot3d([(z/3)^2-y^2,y,z],y=-1..1,z=-3..3);

 

[Maple Plot]

                                                                          Hyperbolic paraboloid with equation: x = (z/3)^2-y^2

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