1.如何用數學方法做出甜甜圈(torus)?

(a)用Maple

(b)用Cabri 3D

(c)切一個甜甜圈(Villarceaux circles)

(d)雙色甜甜圈

(e)四色甜甜圈

(f)繞出一個甜甜圈(1)(2)

2.Saddle,Monkey saddle

3.球

(a)海灘球(1)

(b)海灘球(2)

(c)三色球

3.一片西瓜

4.花

5.一些特殊的曲線(1)(2)(3)(4)(5)

(星形線1)

(星形線2)

(心臟線1)

(心臟線2)

(花瓣線)

6.三個彼此相切的圓柱

7.空間中四個相切圓

8.空間中六個相切圓

9.球面上的相切圓

10.四個相切的球面

11.四個相切的球面與其相切球

12.正四面體和球

13.正方體和球

14.四個相交圓柱的區域 (wrl 檔)

15.各種多面體(wrl檔)

cuboctahedron

PentagonalHexacontahedron

PentagonalIcositetrahedron

PentakisDodecahedron

RhombicDodecahedron

RhombicTriacontahedron

SmallRhombicuboctahedron

SmallRhombiicosidodecahedron

SmallStellatedDodecahedron

SnubDodecahedron

TetrakisHexahedron

TrapezoidalHexecontahedron

TrapezoidalIcositetrahedron

TriakisIcosahedron

TriakisOctahedron

TriakisTetrahedron

TruncatedCuboctahedron

TruncatedDodecahedron

TruncatedIcosidodecahedron

TruncatedOctahedron