Cover news trainee reporter Liu Kexin photography Chen Yuxiao
In addition to Li Bai, Du Fu, Su Dongpo and other celebrities in the history of ancient literature, there is also a mathematician Qin Jiushao, who has a lofty position in the history of world mathematics. On October 18th, the "Hall of Fame" invited Cai Tianxin, professor and doctoral supervisor of the School of Mathematics of Zhejiang University, to give a lecture at the Sichuan Provincial Library with the title of "Qin Jiushao, Daoguqiao and China's Residual Theorems", introducing the life story of this famous mathematician and his outstanding contributions to Chinese mathematics and world mathematics.
In addition to being a professor at the School of Mathematics at Zhejiang University, Cai Tianxin is also a poet and writer, and has published many poetry and essay collections. Cai Tianxin, who 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, has a strong interest in Qin Jiushao's perennial exploration. He has visited Qin Jiushao's birthplace of Anyue in Sichuan, MeiXian county in Guangdong Province, and also visited Fan County, Henan, where Qin Jiushao's ancestral home is.
After Cai Tianxin's wonderful lecture, the audience was still full of curiosity and questions about this mysterious mathematician. Four volunteers continued to seek advice from the keynote speaker.
Zhou Jinfeng
Zhou Jinfeng, a student from the School of Economic Mathematics of Southwestern University of Finance and Economics, was very curious about Cai Tianxin's identity as a "professor of mathematics" and a "poet", and asked Cai Tianxin: "You are both a mathematician and a poet and a traveler, very emotional, but mathematics requires extreme rationality, how do you organically combine rationality and sensibility?" In this regard, Cai Tianxin explained: "This is also a topic that I often talk about, such as 'traveling with numbers and roses'. In fact, the left and right brains develop simultaneously, and many examples of how they affect each other are given today. After the West opened up the liberal arts in the 16th century, the 'genius of the 17th century' appeared. After the completion of arts and sciences, there may be real scientific giants in the next generation, and the kind of great scientists who can compete with our Qin Jiushao will appear. ”
Li Xinyue
Li Xinyue from Chengdu University of Technology came in the name of Qin Jiushao. Although she studied radio and television studies, she was still full of curiosity about Qin Jiushao's achievements. Before attending this lecture, she had read Cai Tianxin's "Little Memories". She asked Cai Tianxin a question: "You once mentioned Needham Needham in "Little Memories", and Needham once pointed out that the Song Dynasty (Southern Song Dynasty) appeared a number of the greatest mathematics in ancient Chinese history, and Qin Jiushao was among them. ”
Professor Cai Tianxin answered this question with the idea that "Qin Jiushao was the commanding heights of mathematics in ancient China, and his work has influenced the development of contemporary mathematics and science until now." Cai Tianxin introduced that Qin Jiushao's theorem is not just an applied computation, it has also reached the height of theory. "Qin Jiushao's theorem is a technique and method that saves a lot of manpower and material resources. With the development of science and technology, more and more engineering technology learning uses Qin Jiushao's theorem. He was one of the greatest scientists and mathematicians of all time. Professor Cai Tianxin praised Qin Jiushao's contribution.
Zhang Baiming
Zhang Baiming is a fifth-grade elementary school student. Soon to enter junior high school, he is full of yearning and expectation for the mystery of the mathematical kingdom. At the lecture site, the 10-year-old teenager learned from Cai Tianxin, who was admitted to the mathematics department of Shandong University at the age of 15: "When were you attracted to mathematics, and why do you like mathematics?" ”
Professor Cai Tianxin said that in fact, he liked mathematics not particularly early. After going to college, Cai Tianxin was attracted by the famous theorems and stories of mathematicians told by his teachers, and he became interested in mathematics. Professor Cai Tianxin also said: "Although some people say that mathematics is very complicated, I think one of the charms of mathematics is simplicity. Its English is only the general present tense, there are not many grammatical changes, and the vocabulary is very small, so when there are ideas and ideas, it is easy to communicate with foreign counterparts. This is what I used to hear the Hungarian mathematician Halmos say, 'If you learn mathematics well, you can travel the world', so now I have also gone to many places. ”
Yuan Lei
Yuan Lei, a propaganda worker from the Dazhou Ba Cultural Research Institute, admired Qin Jiushao's achievements after listening to the lecture, but felt extremely sorry for Qin Jiushao's "obscurity." She asked Cai Tianxin why Qin Jiushao's achievements were so great but little known, and asked Cai Tianxin's suggestions for publicizing Qin Jiushao's achievements.
"If everyone had your idea, if there were more media coverage for him, there would be better communication." In addition, Cai Tianxin also called on the audience of the celebrity lecture hall to share good resources and information, justify Qin Jiushao's name, and make him a business card of Anyue and even Sichuan.
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