Who is the author of Nine Chapters of Arithmetic? What dynasty was it?

Nine Chapters of Arithmetic is a monograph of ancient mathematics in China, and it is the most important one in Ten Arithmetic Classics (ten ancient arithmetic books that appeared between Han and Tang Dynasties). In Wei and Jin Dynasties, Liu Hui commented on Nine Chapters Arithmetic, saying: "The Duke of Zhou was polite, but the nine chapters were good", and he also said: "Hanbei closed his position, and Shou Chang was a senior farmer. Zhang Cang and Geng Shouchang in the Western Han Dynasty all made addenda. The final edition was written at the latest in the early years of the Eastern Han Dynasty, but its basic content was basically finalized in the late years of the Eastern Han Dynasty. There are only two kinds of mathematics books recorded in Han Shu Literature and Art Annals (written by Ban Gu according to Liu Xin's Seven Views): Xu Shang's arithmetic and Du Zhong's arithmetic, but there are no nine chapters of arithmetic, which shows the appearance of nine chapters of arithmetic. Ma Xu was born in the last two or three decades of 1 century. According to the official names and place names in Nine Chapters Arithmetic, it is inferred that Nine Chapters Arithmetic was written in the second half of 1 century. Chapter Nine Arithmetic divides all the mathematical problems in the book into nine categories, namely "Chapter Nine Arithmetic"