Regarding the question of Zu Ti, what kind of person is Zu Ti?

The ancients, the leader of the troops made a down payment in the Central Plains, and he was the guy who smelled the chickens and danced.

Zu Chongzhi (429 A.D. 500 A.D.) was an outstanding mathematician, astronomer, writer, geologist, geographer and scientist in China. During the Northern and Southern Dynasties, the Qi people, Han nationality, the word Wenyuan, was born in the sixth year of Emperor Yuanjia of Song Wen, and died in the second year of Yongyuan, Hou Yongyuan. His ancestral home was Fanyang County, Laishui County, Hebei Province, and in order to avoid war, Zu Chongzhi's grandfather Zuchang moved from Hebei to Jiangnan.

Zu Chang once served as Liu Song's "Great Craftsman", in charge of civil engineering, and Zu Chongzhi's father was also an official in the court.

Zu Chongzhi, for the first time in the history of world mathematics, calculated the value of pi ( ) to seven decimal places, that is, to. He proposed the approximate rate of 22 7 and the density rate of 355 113, which was the earliest in the world, and this achievement was nearly a thousand years ahead of the world, so some people advocated calling it the "ancestral rate", that is, the ancestor of pi. He compiled the results of his mathematical research into a book called "The Art of Fixation", which was once designated as a mathematics textbook in the Tang Dynasty.

After many years of calculation, he also compiled a new calendar, the "Great Ming Calendar". It was the most advanced calendar in the world at the time. For the first time, the "Great Ming Calendar" introduced "precession" into the calendar.

It is proposed to set 144 leap months in 391 years. The length of a return year is calculated to be days, and the error is only about 50 seconds.

He was not only an outstanding mathematician and astronomer, but also an outstanding mechanical expert. We have recreated a variety of ingenious machines such as the long-lost guide car, the thousand-mile ship, and the water mill.

In addition, he also has research on **. But it has long been lost.

He is the author of "Commentary", "Interpretation of the Book of Filial Piety", "Yiyi", "Lao Tzuyi", "Zhuangziyi" and "Shu Yiji", etc., and has held successive positions.

Zu Chongzhi received scientific knowledge from his family since he was a child, and entered Hualin Province as a young man to engage in academic activities. In his lifetime, he successively served in the history of Southern Xuzhou (now Zhenjiang City), the government to join the army, the order of Louxian County (now the northeast of Kunshan City), the servant of the confessor, and the captain of Changshui. Zu Ti (266-321), the character Shizhi, Han nationality, Fanyang County (now Laishui, Hebei), a famous general of the Eastern Jin Dynasty.

In the last years of the Western Jin Dynasty, he led his relatives and friends to avoid chaos in Jianghuai. In 313, he carried out the Northern Expedition as General Fenwei and Yuzhou Assassin. The discipline of Zu Ti's department was strict, and the people everywhere responded, and in a few years they recovered a large area of land south of the Yellow River, so that Shi Le did not dare to invade the south and entered the Zhenxi general.

Later, because of his strong power, he was feared by the imperial court and sent Dai Yuan to contain him. In 321, Zu Ti died of grief due to open and secret battles in the imperial court, state affairs, and posthumously presented the general of the chariot cavalry, and the people were taken over by his younger brother Zu Yue. After his death, the Northern Expedition failed.

Zu Ti (266 Pi Zhi 321 years), the character Shizhi, was a native of Fanyang County (now Laishui County, Baoding City, Hebei Province). During the Eastern Jin Dynasty, he was an outstanding military strategist and national hero. Zu Ti was born in the Fan Yang Zu family, and served as the chief secretary of Sizhou, the great Sima Peng, the high hand of the horse sacrificial wine, and the prince of the middle house.

Zu Ti was rated as a national hero in history, loyal to the country all his life, and died with all his might. Zu Ti was not a child who loved to read before he became an adult, but the young Zu Ti was deeply loved by the township party, because Zu Ti was bold and righteous, and often supported the toiling poor in the name of his brothers, and was even more generous to his friends. The young ancestor learned martial arts, and his friend Liu Kun once encouraged each other when he heard the chicken dance, which was passed down as a good story by later generations.

Due to the oppression of the people of all ethnic groups by the rulers of the Western Jin Dynasty, there were many uprisings and rebellions of the people of all ethnic groups, and the situation was very chaotic. Liu Yuan of the Huns skillfully took advantage of the current situation at that time, to change the dynasty, in 308 AD, Liu Yuan was called the emperor in Pingyang, the following year twice attacked Luoyang, Zu Ti led the local people to migrate to Huaisi for refuge, on the way to migrate, Zu Ti was very concerned about the people, their own cars, food, clothes and other personal belongings, are taken out and used with everyone, Zu Ti's behavior deeply moved the credit of the people, Zu Ti was elected as the "master".

As an adult, Zu Ti studied hard, so his knowledge and ambitions were very far-reaching, and he was appreciated by Sima Rui. Zu Ti has always been very concerned about the fate of the country, advocating the Northern Expedition to recover the lost territory, and after being named General Fenwei by Sima Rui, Zu Ti began his Northern Expedition. In the process of the Northern Expedition, most of the materials and troops were provided by Zu Li himself, Zu Li was frugal, and the soldiers Hongming shared weal and woe, and the army with strict military discipline was greatly recognized by the people, so Zu Li's army grew very quickly, laying a good foundation for his Northern Expedition road.