Counting rods (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Counting rods" in English language version.

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babelstone.co.uk

books.google.com

doi.org

  • Lay-Yong, Lam (1986). "The Conceptual Origins of our Numeral System and the Symbolic Form of Algebra". Archive for History of Exact Sciences. 36 (3): 183–195. doi:10.1007/BF00412260. ISSN 0003-9519. JSTOR 41133800.

jstor.org

  • Lay-Yong, Lam (1986). "The Conceptual Origins of our Numeral System and the Symbolic Form of Algebra". Archive for History of Exact Sciences. 36 (3): 183–195. doi:10.1007/BF00412260. ISSN 0003-9519. JSTOR 41133800.

lyge.cn

mkd.lyge.cn

  • 中国独特的计算工具, archived from the original on 2007-11-21, retrieved 2007-12-161954年,考古学家在位于长江中游地区的湖南省长沙左家公山发掘了一座距今两千一百多年的战国时期楚墓。墓中出土了一个竹筒,里面盛放着戥秤、砝码、毛笔以及四十余根长度约为十二厘米的竹片。这是最早发现也是最古的算筹实物。In English-In 1954, archaeologists discovered a tomb of the Chu Dynasty from the Warring States Period, which is more than 2,100 years old, at Zuojiagong Mountain in Changsha, Hunan Province, in the middle reaches of the Yangtze River. A bamboo tube was unearthed in the tomb, which contained a balance scale, weights, a brush, and more than 40 bamboo pieces about 12 centimeters long. This is the earliest and oldest abacus discovered.

researchgate.net

soas.ac.uk

eprints.soas.ac.uk

st-andrews.ac.uk

mathshistory.st-andrews.ac.uk

tutorvista.com

unicode.org

web.archive.org

  • 中国独特的计算工具, archived from the original on 2007-11-21, retrieved 2007-12-161954年,考古学家在位于长江中游地区的湖南省长沙左家公山发掘了一座距今两千一百多年的战国时期楚墓。墓中出土了一个竹筒,里面盛放着戥秤、砝码、毛笔以及四十余根长度约为十二厘米的竹片。这是最早发现也是最古的算筹实物。In English-In 1954, archaeologists discovered a tomb of the Chu Dynasty from the Warring States Period, which is more than 2,100 years old, at Zuojiagong Mountain in Changsha, Hunan Province, in the middle reaches of the Yangtze River. A bamboo tube was unearthed in the tomb, which contained a balance scale, weights, a brush, and more than 40 bamboo pieces about 12 centimeters long. This is the earliest and oldest abacus discovered.
  • Ancient China Math Archived 2011-01-26 at the Wayback Machine – Copyright © 2010 – TutorVista.com, All rights reserved.

wikisource.org

zh.wikisource.org

  • Chinese Wikisource 孫子算經: 先識其位,一從十橫,百立千僵,千十相望,萬百相當。
  • Chinese Wikisource 正負術曰: 同名相除,異名相益,正無入負之,負無入正之。其異名相除,同名相益,正無入正之,負無入負之。

en.wikisource.org

worldcat.org

search.worldcat.org

  • Lay-Yong, Lam (1986). "The Conceptual Origins of our Numeral System and the Symbolic Form of Algebra". Archive for History of Exact Sciences. 36 (3): 183–195. doi:10.1007/BF00412260. ISSN 0003-9519. JSTOR 41133800.