According to the records in Selected Records of imperial academy in the New Tang Dynasty, imperial academy is divided into six colleges:

Four subjects

Fruit science

Imperial academy (feudal period of China)

Law (Law School)

Calligraphy (Chinese Department)

Mathematics (Science and Engineering)

Examples of teachers and students include four subjects:

There are 6 doctors, 6 teaching assistants, 4 lecturers and students 1300, including 500 children of officials and nobles and 800 children of ordinary people.

Arithmetic, as its name implies, is the study of arithmetic.

In mathematics, Sun Zi and Cao Wu are limited to one year old, Nine Chapters and Island are three years old, Zhang Qiujian and Xiahou Yang are one year old, Zhou Chuan and Wu are one year old, seal script is four years old, Ji Gu is three years old and Xiahou Yang is three years old.

The enrollment age of the School of Mathematics is 14~ 19, in which the academic qualifications are:

Study in the first academic year: Sun Tzu's Art of War and Five Caos.

The second year to the fourth year of study: island calculation classics, nine chapters of arithmetic

Study in the fifth academic year: suan scenery

Sixth academic year: Xiahou Yang Shujing

Study in the seventh academic year: Zhou Xun and Five Classics Calculation.

Eighth to eleventh years of study: composition.

In the 12th-14th school year, I learned Ji Gu, and at the same time I learned Jiyi and Third Class Number.

So these are different from the Analects we are familiar with ... these estimates have some understanding of the nine chapters of arithmetic. ..