圓周率則不同,此數本身特殊,確不能以尺規作圖求得,但也可精确表示。

本帖于 2023-01-13 11:38:57 时间, 由普通用户 中间小谢 编辑

It takes an "infinite series" to define it:

pi / 4  = 1 - 1/3 + 1/5 - 1/7 ..... ( to infinity, but the pattern is clear, unlike the unpredictable  3.1415926.... )

There are many more similar series to define pi, this is the neatest.

 

 

 

请您先登陆,再发跟帖!