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File:四元自乘演段图.jpg

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Description
  • English: 4-yuan self-pride performance diagram

  • 中文（简体）：四元自乘演段图
Date
Source mybook 唐戈藏书
Author Zhu Shijie 1303

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This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
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current22:56, 4 May 2012Thumbnail for version as of 22:56, 4 May 20123,432 × 2,285 (1.76 MB)Gisling (talk | contribs)

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