Shu Shu, written in the Northern Dynasties, is a paper-based mathematical classic. Most of the content of Zhouyi comes from the Art of War, which was written in the Southern and Northern Dynasties. The contents include preface, positioning method, 99 tables, large number notation, measurement system, 99 autocorrelation multipliers, and ten practical problems in land area calculation with the general title of "the first method of land equalization".
Li Cheng and Shu Jing are the general names of calculation tables used by astronomers to calculate various data after the Tang Dynasty. Li Cheng and Shu Jing's contents include position identification, weights and measures, metal proportion, large number notation, 99 songs and 99 accumulation tables.
In Li Cheng and Shu Jing, the counting method of large numbers is based on the decimal system, from 654.38+ 10,000. "Li Cheng Shu Jing" also keeps the number counting, that is, after calculating the steps of 99 songs and 99 accumulation tables, write the numbers below them.
This set of figures came into being in the calculation of Li Cheng and Shu Jing. These figures completely adopted the decimal bit value system, which was the simplest calculation tool at that time and the most advanced counting system. This set of figures inherited the Han and Wei Dynasties and the Song Dynasty, which is of great significance for understanding the development of ancient figures in China.
Dunhuang Shu Jing, as a teaching book, pays attention to the principle of applying what you have learned, with precise topics and strong applicability, which can solve many calculation problems in daily work, production and management.