1.等半徑之正交圓柱體之交集         2.不等半徑之正交圓柱體之剩餘
 

       3.拋物面與橢圓面的交會                      4.特殊圖 " Astroidal Ellirsoid "
 

                                                5.特殊螺旋面
                                       
                                                   6.喇叭花