This question comes from Shu Jing, a grandson in ancient times, which means: There is one thing whose quantity is unknown. If you count in twos and threes, there will be two in the end; Five, five places, and finally there are three left; Count to seven, and there are two left. Ask how many of these things are there? As soon as Teacher Wang finished reading the questions, Hua blurted out, "Twenty-three!" ?
"Why, have you read The Art of War?" Teacher Wang asked in surprise. Hua replied, "I don't know the book Sun Tzu's Art of War, let alone read it." "Then how did you work it out?" Teacher Wang asked again. ?
Hua methodically replied: "I think so, three three-place numbers, more than two, seven seven-place numbers, more than two, and the rest are all two." Then, the total may be three times seven plus two, which equals twenty-three. When twenty-three is divided by five, the remainder is exactly three. Therefore, 23 is the number sought. " "Ah-"Miss Wang was stunned. "What a coincidence!"
While continuing to study mathematical theory, he tried to find a way to combine mathematics with industrial and agricultural practice. After a period of practice, he found that the overall planning method and optimization method in mathematics can be widely used in industrial and agricultural production, which can improve work efficiency and change the face of work management. Therefore, while giving lectures at the University of Science and Technology, he led students to promote the optimization method and overall planning method in industrial and agricultural practice.
At the beginning of 1964, he wrote to Mao Zedong, expressing his determination to take the road of combining workers and peasants. On March 18 of the same year, Mao Zedong wrote back: "I have read both poems and letters. Top gun, congratulations. " He is the author of "General Planning Method and Supplement" and "Optimization Method and Supplement".
I personally led the teachers and students of China University of Science and Technology to some enterprises and factories to popularize and apply the "double methods" to serve industrial and agricultural production. "Go to Jianghan to fight the heat in summer and go to Songliao first frost in winter." This is a portrayal of his life at that time. In 1965, Mao Zedong wrote to him again, congratulating and encouraging him to "work hard and serve the people, not the individual".
1953, the Academy of Sciences organized a delegation to go abroad, headed by the famous scientist Qian Sanqiang. Members include Hua, Zhao Jiuzhang and Zhu Xian. In his spare time, Hua wrote a couplet: "The top three are Korea, Zhao and Wei", seeking this couplet. ?
The "top three" here refers to Korea, Zhao and Wei San during the Warring States Period, but it implies the name of the head of the delegation, Comrade Qian Sanqiang, which not only solves the traditional difficulty of the couplet of numbers and numbers, but also requires the name of another scientist to be embedded in the bottom couplet. After a while, when Hua saw that everyone had no bottom line, he revealed his bottom line: "Hook, strand and string are nine chapters."
Nine Chapters is a famous mathematical work in ancient China. However, the "Nine Chapters" here happen to be the name of another member of the delegation-atmospheric physicist Zhao Jiuzhang. Hua's wonderful pair made the audience fall for it.
1980, when Professor Hua was guiding the overall planning method and optimization method in Suzhou, he wrote the following couplets: Watching chess is not a gentleman, helping each other in the same boat; Be a person with regrets and correct your mistakes.
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Hua left ten masterpieces in his life: Theory of Pile Prime Numbers, Evaluation of Exponential Sum and Its Application in Number Theory, Harmonic Analysis of Typical Fields in the Theory of Multiple Complex Variables, Introduction to Number Theory, Typical Groups (co-authored with Wan Zhexian), Starting from the Unit Circle, Application of Number Theory in Approximate Analysis (co-authored with Wan Zhexian) and II.
Eight of them have been translated and published abroad, and have been included in the 20th century mathematical classics. In addition, there are more than 65,438+050 academic papers, among which popular science works, such as Supplement to Comments on Optimal Selection Method and Supplement to Comments on Overall Planning Method, have been compiled as Selected Works of Popular Science by China.
Hua's contribution to the development of mathematics in China is known as "the father of modern mathematics in China", "the god of mathematics in China" and "the people's mathematician". ?
This internationally renowned mathematician is listed as "one of the 88 great mathematicians in Chicago Science and Technology Museum today" along with several classic mathematicians in famous museums such as Smithsonian Museum and Chicago Science and Technology Museum. ?
1948 was elected as an academician of academia sinica. 1955 was elected as an academician of China Academy of Sciences. 1982 was elected as a foreign academician of the American Academy of Sciences. 1983 was elected as an academician of the Third World Academy of Sciences. 1985 was elected as an academician of Bavarian Academy of Sciences in Germany. He received honorary doctorates from Nancy University in France, the Chinese University of Hong Kong and the University of Illinois in the United States.
Since the founding of the People's Republic of China 60 years ago, he has been "one of 100 people who moved China".
References:
Baidu encyclopedia-China