林肯穷得买不起算术书的时候，就向别人借了一本，抄在普通信纸大小的纸上。
Too poor to buy an arithmetic, Lincoln borrowed one and copied it on sheets of paper about the size of an ordinary letter-head.
其中一本书是一本很厚的算术课本，用羊皮纸包得很厚。
One of the books was a very large volume, an arithmetic text, heavily bound in leather.
一些理论也被称为高算术，因为标题中哈罗德·达文波特的书的主题。
Number theory is also referred to as the higher arithmetic, as in the title of Harold Davenport's book on the subject.
证明出土《算数书》不是中国最早的数学著作，它与今传汉代编定的《九章算术》之间没有直接的影响关系。
The paper demonstrates: The unearthed Suanshu Shu is not the earliest book of mathematics in China, and has no direct mutual influence with the Nine Chapters on Mathematical Procedures.
《算数书》作为一部比《九章算术》还要早的数学专著，对于中国古代数学史的研究具有重要价值。
As a mathematics monograph prior to the Nine Chapters on Mathematical Procedures, the Suanshushu is of great value to study Chinese ancient history of mathematics.
《算数书》作为一部比《九章算术》还要早的数学专著，对于中国古代数学史的研究具有重要价值。
As a mathematics monograph prior to the Nine Chapters on Mathematical Procedures, the Suanshushu is of great value to study Chinese ancient history of mathematics.
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