File:2-d dense packing r3.svg

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English: A compact packing of the plane with non-overlapping binary discs (two sizes of circles) with a radius ratio of 0.5332964167. The packing fraction (area density) is 0.914179. This has a wallpaper group cmm. It has been shown that this structure achieves the densest possible packing at this ratio (possibly degenerately) (cited in Kennedy [1]).
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Source Own work, following Tom Kennedy [2].
Author Toby Hudson
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31 May 2010

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current07:48, 31 May 2010Thumbnail for version as of 07:48, 31 May 20101,000 × 1,078 (51 KB)99of9== Summary == {{Information |Description={{en|1=A compact packing of the plane with non-overlapping binary discs (two sizes of circles) with a radius ratio of 0.5332964167.}} |Source={{own}}, following Tom Kennedy [http://arxiv.org/abs/math/0407145v2]. |A

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