Cover news reporter Zhang Jie
Su Dongpo, a great scholar who grew up in Sichuan, is a fan of thousands of people and is a well-known figure in the world. In fact, there is another historical celebrity in Sichuan, who is also popular in the world, that is, Qin Jiushao, a famous mathematician of the Southern Song Dynasty who was born in Puzhou (now Anyue County, Ziyang City).
Qin Jiushao was born in Puzhou (present-day Anyue County, Ziyang City) in 1208, and studied astrology, musical rhythm, arithmetic, and construction, and wrote the Nine Chapters of the Book of Numbers, which was included in the Yongle Canon and the Compendium of the General Catalogue of the Four Libraries. Many of these calculation methods and empirical constants still have high reference value and practical significance, known as the "treasure book in arithmetic", representing the advanced level of Chinese mathematics at that time and occupying a lofty position in the history of world mathematics. Qin Jiushao founded the quite complete "Great Yan Qiu Yi Technique" and "Positive and Negative Prescription Technique" in the "Nine Chapters of the Book of Numbers", which is an outstanding summary of the brilliant achievements of traditional Chinese mathematics in these two aspects. The "Great Yan Qiu Yi Shu" is more than 500 years earlier than the research of the famous Western mathematicians Euler and Gauss on this problem, and is called "China's residual theorem" by the West, showing Qin Jiushao's lofty position in the history of world mathematics.
Behind this great mathematician and scientist, what kind of valuable growth experience does his learning have, and what is the value and significance of his knowledge for us today and here and now? What is the charm of ancient oriental mathematics? At 7:30 p.m. on October 18, Cai Tianxin, a professor of mathematics, writer and traveler at Zhejiang University, will be a guest in the "Hall of Fame" and give a lecture at the Sichuan Provincial Library with the title of "Qin Jiushao, Daoguqiao and China's Residual Theorem".
Cai Tianxin was admitted to the Department of Mathematics of Shandong University at the age of 15 and received his Doctor of Science degree at the age of 24. Professor and doctoral supervisor of School of Mathematics, Zhejiang University. He was also a poet and writer, publishing numerous collections of poems and essays. Cai Tianxin, who is also a mathematician, a poet and a writer, has a strong interest in Qin Jiushao's perennial exploration. In his essay collection "Mathematical Legends: Those Unattainable Characters", he is specially included in the chapters of "Qin Jiushao, Daoguqiao and the Nine Chapters of the Book of Numbers". In order to write this article, Cai Tianxin successively visited Qin Jiushao's birthplace of Anyue in Sichuan, Meixian County in Guangdong Province, and also visited Fan County, Henan, where his ancestral home was. In order to clearly explain Qin Jiushao's moral doubts, Cai Tianxin devoted himself to many field visits and many sources to seek verification and advice, and "rehabilitated" Qin Jiushao's reputation.
The "Celebrity Lecture Hall" is an important cultural activity sponsored by the Office of the Leading Group for the Implementation of the Sichuan Historical Celebrity Cultural Inheritance and Innovation Project, the Sichuan Daily Newspaper Group (Cover News, West China Metropolis Daily), and the Sichuan Provincial Library, and is sought after by the majority of fans. Since the official opening of the lecture in November 2018, the "Celebrity Lecture Hall" has invited experts in the fields of history, humanities and natural sciences, including Li Jingze, Alai, Li Bo, Yu Dan, Mei Zhengzheng, Fang Beichen, Sun Xiaochun, etc., to sit and discuss with the audience, becoming a beautiful cultural business card.
Are you interested in Qin Jiushao, a genius mathematician, and do you have any questions you would like to ask Professor Cai in person? On how to better promote the great character of Qin Jiushao?" Let the essence of traditional culture be injected into the current spiritual and cultural construction, do you have such a high opinion? Come and sign up for the "Hall of Fame" and listen to Cai Tianxin, a former mathematics professor who was a teenager college student, tell more stories about Qin Jiushao and the beauty of mathematics. This event will collect 120 on-site spectators and 4 volunteers (subject to the final organizer's phone or SMS notification), and the friends who love mathematical culture will come to the fast hand and register quickly!
Click on the image to register
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