A Brief Introduction to the Story of Mathematician Zu Chongzhi
The story of mathematician Zu Chongzhi mainly tells that mathematician Zu Chongzhi has certain research fields in mathematics and astronomy. At that time, the emperor liked Zu Chongzhi very much, and some ministers didn't understand Zu Chongzhi's deviance. But it turns out that Zu Chongzhi, a great mathematician, had a far-reaching influence on later generations, and applied the field of mathematics and modern learning materials.
The original story of mathematician Zu Chongzhi
Zu Chongzhi was a mathematician and astronomer in the Southern and Northern Dynasties. He is a native of Laiyuan, Hebei Province, and his greatest achievement is to calculate pi.
Before Qin and Han dynasties, the diameter of three weeks was the pi at that time, but the error was great. Later, it was found that pi should be more than three weeks, but the size of the remainder could not be determined. Later, Liu Hui invented secant technology, and found that pi was 3. 14, and found a problem that the more sides a regular polygon inscribed on a circle, the more accurate pi would be.
How Zu Chongzhi got pi is impossible to research, but in any case, he is a man of great perseverance and wisdom.
Zu Chongzhi, seeking truth from facts, experimented with the calendar himself, and edited the Daming Calendar at the age of 33, thus opening a new era in calendar history.
He especially likes studying mathematics, and he also likes studying astronomical calendars. He often observes the movements of the sun and planets and makes detailed records.
Emperor xiaowu of song heard of his fame and sent him to a yamen specializing in academic research? Hualin province? Work. He is not interested in being an official, but he can concentrate more on mathematics and astronomy there.
There have been officials who studied astronomy in all previous dynasties in our country. They made calendars according to the results of astronomical research. By the Song Dynasty, the calendar had made great progress, but Zu Chongzhi thought it was not accurate enough. Based on the results of his long-term observation, he created a new calendar called? Daming calendar? (? Daming? It is the year number of Emperor Xiaowu of Song Dynasty). The number of days in each tropical year measured by this calendar (that is, the time between winter and sun in two years) is only 50 seconds different from that measured by modern science; It takes less than one second to measure the number of days for the moon to make one revolution, which shows its accuracy.
In 462 AD, Zu Chongzhi requested Emperor Xiaowu of Song Dynasty to issue a new calendar, and Emperor Xiaowu called ministers to discuss it. At that time, Dai Faxing, one of the emperor's minions, stood out against it and thought that it was deviant for Zu Chongzhi to change the ancient calendar without authorization. Zu Chongzhi refuted Defarge on the spot with his own research data. Relying on the emperor's favor, Dai Faxing said arrogantly: the calendar was set by the ancients and cannot be changed by future generations. ? Zu Chongzhi is not afraid at all. He said seriously:? If you have something to prove, argue it out. Don't scare people with empty talk. ? Emperor Xiaowu of Song wanted to help Dai Faxing, and found some people who knew the calendar to argue with Zu Chongzhi, but Zu Chongzhi refuted them one by one. However, Emperor Xiaowu of Song still refused to issue a new calendar. It was not until ten years after Zu Chongzhi's death that his Da Ming Li was put into practice.
Although the society was very turbulent at that time, Zu Chongzhi studied science tirelessly. His greater achievement is in mathematics. He once annotated the ancient mathematics book Nine Chapters Arithmetic and wrote a book Composition. His most outstanding contribution is to get quite accurate pi. After a long and arduous study, he calculated pi between 3. 14 15926 and 3. 14 15927, becoming the first scientist in the world to calculate pi to more than seven digits.
Zu Chongzhi is a generalist in scientific inventions. He built a kind of compass, and the copper man in the car always pointed south. He built another one? A thousand miles boat? I have tried sailing on the Xinting River (now southwest of Nanjing), and I can sail 100 miles a day. He also uses hydraulic power to turn the stone mill, mash rice and grind millet. What is this called? Water hammer mill? .
Mathematician Zu Chongzhi data
Zu Chongzhi (429-500) was born in Wen Yuan. Jiankang (now Nanjing) was an outstanding mathematician and astronomer in the Southern and Northern Dynasties. Zu Chongzhi studied natural science all his life, mainly contributing to mathematics, astronomical calendar and mechanical manufacturing. On the basis of the accurate method of exploring pi pioneered by Liu Hui, he first put? Pi? Actuarial to the seventh place after the decimal point, that is, between 3. 14 15926 and 3. 14 15927, he proposed? Ancestral rate? Great contribution to mathematical research. Until16th century, the Arab mathematician Al? Kathy just broke this record. The Daming Calendar written by him was the most scientific and progressive calendar at that time, which provided a correct method for future astronomical research. His main works are In the Frontier, Composition, Explaining Words, Li Yi and so on.
Mathematical achievement
A pioneering work in the history of mathematics? Ancestral rate? Zu Chongzhi calculated pi (? The true value of) is between 3. 14 15926 and 3. 14 15927, which is equivalent to being accurate to the seventh place after the decimal point, and it is changed to 3. 14 15926. So Zu Chongzhi was chosen as the first scientist in the world record association world to calculate the value of pi to the seventh place after the decimal point. Zu Chongzhi also gave pi (? ): 22/7 (approximate rate) and 355/ 1 13 (security rate), where the security rate is accurate to the seventh place after the decimal point. Zu Chongzhi's accurate calculation of pi is a great contribution to China and even the world. About the rate? Named after him? Zu Chongzhi approved? , abbreviation? Ancestral rate? .