File:益古演段.jpg
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Summary
| Description |
中文（简体）：益古演段 |
| Date | 13th century |
| Source | mybook 根据唐戈藏书拍摄 |
| Author | Li Zhi (Chinese: 李治) (1192–1279), |
Licensing
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.  You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:42, 6 April 2011 | | 579 × 817 (361 KB) | Gisling | {{Information |Description ={{zh-hans|1=益古演段}} |Source =mybook |Author =Li Zhi (Chinese: 李治) (1192–1279), |Date =13th century |Permission = |other_versions = }} Category:Chinese mathematics |
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