[几何] Carlyle圆

[Copy link]

3228 Threads	7846 Posts	52 Reputation

hbghlyj posted 2021-7-4 02:59 |Read mode

以A(0,1)和B(s,p)为直径端点的圆与x轴的交点横坐标是$x^2 − sx + p = 0$的根,这个圆称为Carlyle圆
利用它可以作正5,17,257,65537...边形
正5边形.gif

Reply Edit 0

Quick Reply

2025-7-24 08:09 GMT+8

Powered by Discuz!

Processed in 0.012210 seconds, 25 queries

Account		Remember me	Forgot password
Password			Register account