Shuli jingyun


The Shuli jingyun, known in English as the Collected Essential Principles of Mathematics, is a 53-volume mathematical encyclopedia, part of the Siku Quanshu collection, on musical tuning, calculation, and the calendar. It includes three treatises on astronomy, mathematics, and music, compiled under imperial order during the Kangxi reign. The book was completed in 1723.

Production and distribution

The encyclopedia was commissioned by the Kangxi Emperor in 1713 and involved over one hundred scholars studying under the Emperor and Jesuit experts. The compilation of this book was supervised by Prince Yūnlu, with He Guozong and Mei Gucheng as main compilers. The book began its creation in 1713 and was finished by 1723. In 1724, the first copy was published by the imperial printing shop. The encyclopedia was intended to be used as an imperial textbook in China. Upon its publication, it has been imported to different countries such as Korea in 1729.
The Shuli jingyun is included in the Siku Quanshu collection, commissioned by the Qianlong Emperor. This collection, compiled between 1773 and 1782, includes 3,461 titles and is divided into four treasuries.

Contents

The Shuli jingyun has two parts and an appendix with tables in 8 juan. The first part covers the theory and foundations of Chinese mathematics, while the second part includes five chapters on different mathematical concepts like lines, areas, and volumes.

Tables

The original Shuli jingyun consists of eight volumes of tables. The first two volumes contain trigonometric function tables calculated every 10 seconds of the quadrant. The next two include prime number factors up to 100,000. The next two provide logarithms for numbers up to 100,000. The last two offer logarithms of trigonometric functions every 10 seconds of the quadrant.
The tables of logarithms were directly taken from the Arithmetica logarithmica and Trigonometria artificialis, both works by Adriaan Vlacq.