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Mathematical Treatise in Nine Sections

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Title: Mathematical Treatise in Nine Sections  
Author: World Heritage Encyclopedia
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Subject: Chinese mathematics, Song dynasty, Horner's method, Ulrich Libbrecht, Chinese remainder theorem
Collection: 1247 Works, Chinese Mathematics, Mathematics Manuscripts, Song Dynasty, Song Dynasty Literature
Publisher: World Heritage Encyclopedia

Mathematical Treatise in Nine Sections

Mathematical Treatise in Nine Sections in The Siku Quanshu
1842 wood block printed Shu Shu Jiu Zhang
surveying a round city from afar.Shu Shu Jiu Zhang
Qin Jiushao solved third order equation with rod calculus

The Mathematical Treatise in Nine Sections (simplified Chinese: 数书九章; traditional Chinese: 數書九章; pinyin: Shùshū Jiǔzhāng; Wade–Giles: Shushu Chiuchang) is a mathematical text written by Chinese Southern Song dynasty mathematician Qin Jiushao in the year 1247.

This book contains nine chapters:

  1. Da Yan type (Indeterminate equations);
  2. Heaven phenomena
  3. Area of land and field
  4. Surveying
  5. Taxation
  6. Storage of grains
  7. Building construction
  8. Military matters
  9. Price and interest.

Each chapter contains nine problems, a total of 81 problems. Apart from describing Chinese Remainder Theorem for the first time and providing a constructive proof for it, the text investigated:

Like many traditional Chinese mathematical works, the text reflects a Confucian administrator's concern with more practical mathematical problems, like calendrical, mensural, and fiscal problems.

The text existed in manuscript form in 1247, it was incorporated into The Yongle Encyclopedia in 1421; in 1787 the book was collected into Siku Quanshu, in 1842 appeared in woodblock printed edition. The 19th century British Protestant Christian missionary Alexander Wylie in his article Jottings on the Sciences of Chinese Mathematics published in North China Herald 1852, was the first person to introduce Mathematical Treatise in Nine Sections to the West. in 1971 Belgian sinologist Ulrich Libbrecht published his doctorate dissertation, Chinese Mathematics in the Thirteenth Century, which earned him a degree cum laude at Leiden University.[2]


  1. ^ Yoshio Mikami, The Development of Mathematics in China and Japan, Chelsia, New York, 1913 edition, p77
  2. ^ Ulrich Libbrecht: Chinese Mathematics in the Thirteenth Century: "Shu-shu Chiu-chang" of Ch'in Chiu-shao, Dover Publications Inc., ISBN 978-0-486-44619-6


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