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Reference.org
Book on Numbers and Computation
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<p> The <i>Book on Numbers and Computation</i> , or the <i>Writings on Reckoning</i>, is one of the earliest known <a href="/facts/Chinese_mathematics/naFkyWeW">Chinese mathematical treatises</a>. It was written during the early Western <a href="/facts/Han_dynasty/hanfxS9D">Han dynasty</a>, sometime between 202 BC and 186 BC. It was preserved among the <a href="/facts/Zhangjiashan_Han_bamboo_texts/swlST7uG">Zhangjiashan Han bamboo texts</a> and contains similar mathematical problems and principles found in the later <a href="/facts/Eastern_Han/hanfxS9D">Eastern Han</a> period text of <i><a href="/facts/The_Nine_Chapters_on_the_Mathematical_Art/INGLo2Cm">The Nine Chapters on the Mathematical Art</a></i>. </p>