再世情缘介绍:100个初等数学问题

来源:百度文库 编辑:高考问答 时间:2024/05/07 20:08:05
斯坦纳的三点内摆线Steiner's Three-pointed Hypocycloid
确定一个三角形的华莱士(Wallace)线的包络.

Steiner's Three-pointed