加入
The inscribed square problem (Toeplitz's square peg problem)
Show that every simple closed curve in the plane passes through the four vertices of some square.
比较改动
选两个分支看看改了什么，再发起 PR 把工作带过去。
选两个不同的分支
PR 可以从任何一个分支合入任何另一个分支。
Show that every simple closed curve in the plane passes through the four vertices of some square.
选两个分支看看改了什么，再发起 PR 把工作带过去。
PR 可以从任何一个分支合入任何另一个分支。