Liu Hui (born around 250 AD) is a very great mathematician in the history of Chinese mathematics. It also occupies a prominent position in the history of world mathematics.

Second, Jia Xian?

Jia Xian was an outstanding mathematician in the Northern Song Dynasty in ancient China. The method of increasing, multiplying and opening is a positive root method for finding higher power. At present, the principle and procedure of mixed division in middle school mathematics are similar.

Second, what about Qin?

Qin (about 1202- 126 1) was from Anyue, Sichuan. He, Yang Hui and Zhu Shijie are also called the four great mathematicians in Song and Yuan Dynasties. In his early years in Hangzhou, 1247 was written into the famous Shu Shu Jiu Zhang.

Third, Ye Li?

Ye Li, formerly known as Li Zhi, was born in Luancheng, Jin Dynasty. He used to be the governor of Zhou Jun (now Yuxian County, Henan Province). Zhou Jun was destroyed by the Mongolian army in 1232, so he lived in seclusion and studied, and was hired as a bachelor of Hanlin by Kublai Khan of Yuan Shizu.

After only one year, he resigned and returned to his hometown. 1248 was written in "Circular Sea Mirror", the main purpose of which was to explain the method of arranging equations with astronomical elements.

Fourth, Zhu Shijie?

"Arithmetic Enlightenment" is a well-known mathematical masterpiece, which spread overseas and influenced the development of mathematics in Korea and Japan. "Meeting from the source" is another symbol of China's mathematical peak in the Song and Yuan Dynasties.

Verb (short for verb) Zu Chongzhi?

Zu Chongzhi (AD 429-500), a native of Laiyuan County, Hebei Province, was an outstanding scientist in the Southern and Northern Dynasties.

He is not only a mathematician, but also familiar with astronomical calendar, machinery manufacturing, music and other fields, and is an astronomer. ?

Zu Chongzhi's main achievement in mathematics is the calculation of pi, which is 3. 14 15926.

The significance of this result lies in pointing out the range of error, which is the most outstanding achievement in the world at that time. Zu Chongzhi determined two forms of π value.

6. Zu Xuan?

Together with his father Zu Chongzhi, Zu Xuan successfully solved the problem of calculating the sphere area and got the correct volume formula. The well-known "principle of forming ancestors" in current textbooks can be described as the outstanding contribution of Zuxuan to the world in the 5th century.

Seven, Yang Hui?

Yang Hui was an outstanding mathematician and mathematical educator in the Southern Song Dynasty. /kloc-in the middle of the 0/3rd century, he was active in Suzhou and Hangzhou with many works. His famous math books have five kinds and 21 volumes.

In Classification, Yang Hui reclassified 246 problems in Nine Chapters of Arithmetic into nine categories according to the order of solving problems from shallow to deep, such as multiplication and division, divisibility, exchange, secondary attenuation, overlapping product, remainder, equation, pythagorean and so on.

Eight, Zhao Shuang

Zhao Shuang was a native of the State of Wu from the end of the Eastern Han Dynasty to the Three Kingdoms period. He is a famous mathematician and astronomer in the history of our country. According to records, he studied Zhang Heng's astronomical works Lingxian and Liu Hong's Dry Elephant Calendar.

His main contribution is a thorough study of Zhou Zhuan, the oldest astronomical work in China, which lasted about 222 years. In the early Tang Dynasty, it was renamed Zhou Chuan Shu Jing, and a preface was written with detailed comments.

Nine, Zhu Shijie

Zhu Shijie (1249-13 14), a native of Yanshan (now Beijing), was a mathematician and educator in the Yuan Dynasty all his life.

In academic circles, he has the reputation of "the greatest mathematician in the medieval world". Zhu Shijie developed the "four skills" on the basis of the natural skills at that time, that is, he listed four-variable polynomial equations of higher order and their elimination methods.

X. Xu Guangqi

Xu Guangqi first used the word "geometry" as a technical term of mathematics to refer to this branch of mathematics. What he handed over

Translation of Euclid's original geometry. Until the beginning of the 20th century, China abolished the imperial examination and promoted schools. Elementary geometry with geometry as its main content became a compulsory subject in middle schools.

Extended information 1. The story of Zhao Shuang.

It is reported that he studied Zhang Heng's astronomical works Lingxian and Liu Hong's Dry Elephant Calendar, and also mentioned "arithmetic".

His main contribution is an in-depth study of Zhoupian, the oldest astronomical work in China (renamed Zhoupian Jing in the early Tang Dynasty).

This book concisely summarizes the profound principles of Pythagorean arithmetic in ancient China. Among them, there is an annotation of Pythagoras Square with more than 530 words, which is a very valuable document in the history of mathematics.

He explained the Pythagorean theorem in the Book of Changes, ·suan Jing, and expressed it as a new proof.

Second, the story of Liu Hui

This method is consistent with the later method of finding the approximate value of irrational roots. It is not only a necessary condition for accurate calculation of pi, but also promotes the generation of decimals.

In the solution of linear equations, he created a simpler method of mutual multiplication and elimination than direct division, which is basically consistent with the current solution; And put forward the problem of indefinite equation for the first time in the history of Chinese mathematics.

He also established the summation formula of arithmetic progression's first n terms; Many mathematical concepts were put forward and defined, and Liu Hui also put forward many recognized correct judgments as the premise of proof.

Most of his reasoning and proofs are logically rigorous, so Nine Chapters Arithmetic and his own solutions and formulas are based on inevitability.

Liu Hui didn't write a self-contained book, but he noticed that the mathematical knowledge used in Nine Chapters Arithmetic has actually formed a unique theoretical system, including concepts and judging the relationship between them.

Baidu Encyclopedia-Liu Hui

Baidu Encyclopedia-Zhao Shuang