描述Perron tree.svg	English: Construction of a Perron tree by dividing a triangle into ${\displaystyle 2^{n}}$ subtriangles and recombining them with partial overlaps. Cases ${\displaystyle n=1}$ and ${\displaystyle n=3}$ are illustrated.
日期	2013年1月30日, 04:26 (UTC)
来源	本檔案衍生自： Perrontree2.jpg:
作者	Perrontree2.jpg: Jazzam derivative work: Mikhail Ryazanov

我，本作品著作权人，特此采用以下许可协议发表本作品：

Public domainPublic domainfalsefalse

我，本作品著作权人，释出本作品至公有领域。这适用于全世界。 在一些国家这可能不合法；如果是这样的话，那么： 我无条件地授予任何人以任何目的使用本作品的权利，除非这些条件是法律规定所必需的。

This image is a derivative work of the following images:

• File:Perrontree2.jpg licensed with PD-self
  • 2007-04-05T04:53:44Z Jazzam 1155x1270 (299791 Bytes) This is an illustration of the method of constructing different sizes of Kakeya sets using the 'sprouting' method, in which the final shapes are what are called Perron trees. One starts with a triangle, and then partitions it

Uploaded with derivativeFX