File:Qinghuajian, Suan Biao.jpg

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Qinghuajian,_Suan_Biao.jpg(400 × 532 pixels, file size: 201 KB, MIME type: image/jpeg)


English: Bamboo slips housed in Tsinghua University. This set of slips was a chart for calculation.
中文: 清华简之“算表”,战国时代的乘法计算工具
Author People from Warring States Period (476-221 BC)


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