Su Yu 1902 was born in a mountain village in Pingyang County, Zhejiang Province in September. Although the family is poor, his parents scrimp and save, and they have to work hard to pay for his education. When he was in junior high school, he was not interested in mathematics. He thinks mathematics is too simple, and he will understand it as soon as he learns it. However, a later math class influenced his life.
That was when Su was in the third grade. He was studying in No.60 Middle School in Zhejiang Province. Teacher Yang teaches mathematics. He has just returned from studying in Tokyo. In the first class, Mr. Yang didn't talk about math, but told stories. He said: "In today's world, the law of the jungle, the world powers rely on their ships to build guns and gain benefits, and all want to eat and carve up China. The danger of China's national subjugation and extinction is imminent, so we must revitalize science, develop industry and save the nation. Every student here has a responsibility to' rise and fall in the world'. " He quoted and described the great role of mathematics in the development of modern science and technology. The last sentence of this class is: "In order to save the country and survive, we must revitalize science. Mathematics is the pioneer of science. In order to develop science, we must learn math well. "I don't know how many lessons Sue took in her life, but this lesson will never be forgotten.
Teacher Yang's class deeply touched him and injected new stimulants into his mind. Reading is not only to get rid of personal difficulties, but to save the suffering people in China; Reading is not only to find a way out for individuals, but to seek a new life for the Chinese nation. That night, Sue tossed and turned and stayed up all night. Under the influence of Teacher Yang, Su's interest shifted from literature to mathematics, and since then, she has set the motto "Never forget to save the country when reading, and never forget to save the country when reading". I am fascinated by mathematics. No matter it is the heat of winter or the snowy night in first frost, Sue only knows reading, thinking, solving problems and calculating, and has worked out tens of thousands of math exercises in four years. Now Wenzhou No.1 Middle School (that is, the provincial No.10 Middle School at that time) still treasures a Su's geometry exercise book, which is written with a brush and has fine workmanship. When I graduated from high school, my grades in all subjects were above 90.
/kloc-At the age of 0/7, Su went to Japan to study, and won the first place in Tokyo Technical School, where she studied eagerly. The belief of winning glory for our country drove Su to enter the field of mathematics research earlier. At the same time, he has written more than 30 papers, and made great achievements in differential geometry, and obtained the doctor of science degree in 193 1. Before receiving her doctorate, Su was a lecturer in the Department of Mathematics of Imperial University of Japan. Just as a Japanese university was preparing to hire him as an associate professor with a high salary, Su decided to return to China to teach with his ancestors. After the professor of Zhejiang University returned to Suzhou, his life was very hard. In the face of difficulties, Su's answer is, "Suffering is nothing, I am willing, because I have chosen the right road, which is a patriotic and bright road!" "
This is the patriotism of the older generation of mathematicians.
2. Chen Jingrun (1933 ——1996)
Chen Jingrun doesn't like going to the park or shopping, but he likes studying. When I study, I often forget to eat and sleep.
One day, Chen Jingrun touched his head during lunch. Oh, his hair is too long. He should get a haircut quickly, or people will think he is a girl when they see him. So he left work and ran to the barber shop.
There are so many people in the barber shop that everyone cuts their hair next to each other. Chen Jingrun's brand is the small brand number 38. He thought it was too early for me to turn now. Time is so precious that I can't waste it. He hurried out of the barber shop, found a quiet place to sit down, then took out a small notebook from his pocket and recited new words in a foreign language. He recited it for a while and suddenly remembered that when he was reading a foreign language in the morning, there was one place he didn't understand. You must understand what you don't understand. This is Chen Jingrun's temper. He looked at his watch. It's only half past twelve. He thought: check in the library first, and then come back for a haircut. He stood up and left. Who knows, not long after he left, it was his turn to get a haircut. The barber's uncle shouted, "Number 38! Who is number thirty-eight? Come and get a haircut! " Think about it. Chen Jingrun is reading in the library. Can he hear the barber's uncle calling number 38?
After a long time, Chen Jingrun found something he didn't understand in the library, and then went to the barber shop happily. But he passed by the foreign language reading room, and there were all kinds of new books, which were really nice. He ran in and read another book. It was not until the sun went down that he remembered to cut his hair. As soon as he touched his pocket, the little sign No.38 was still lying well. But what's the use of his coming to the barber shop? This number is outdated.
As soon as Chen Jingrun entered the library, it was like falling into a honey pot, and he couldn't bear to leave. Yes, another day, Chen Jingrun had breakfast, took two steamed buns and a pickle, and went to the library.
Chen Jingrun found the quietest place in the library and read carefully. He stayed until noon and felt a little hungry, so he took out a steamed bun from his pocket and was still reading while eating.
"Ding Lingling ..." The bell rang, and the librarian shouted, "It's time to get off work, please leave the library!" The somebody else all gone, but Chen Jingrun didn't hear, or 1 vigorously in reading.
The librarian thought that everyone had left the library, so he locked the library door and went home.
Time passed quietly and it was getting dark. Chen Jingrun looked out of the window and said to himself, What a strange weather it is today! It's sunny for a while and cloudy for a while. He pulled down the switch wire of the light and sat down to read. Watching, he suddenly stood up. It turned out that he read a book all day and began to understand. Now, he will go back to the dormitory and continue to do the problems he left unfinished yesterday.
Chen Jingrun put the book away and went out. The library was silent, and there was no sound at all. Hey, where's the janitor? Why doesn't anyone come to read? Chen Jingrun looked at his watch. Ah, it's past eight o'clock in the evening. He pushed open the locked door; He shouted at the door: "Please open the door! Please open the door! " But no one answered.
In normal times, Chen Jingrun will go back to his seat and continue reading until the next morning. But, not today! He's going back to the dormitory to do that unfinished problem!
He went to the telephone and called the office. But there was no answer, only a beep. He dialed this number several times, but no one answered. What shall we do? At this moment, he remembered the secretary of the Party Committee and dialed the telephone immediately.
Chen Jingrun? The party secretary was surprised when he received the phone call. He was overjoyed, looked into it and said with a smile, "Chen Jingrun! Chen Jingrun! You have worked hard, you are really a good comrade. "
The party secretary immediately sent some comrades to the librarian. The door of the library opened and Chen Jingrun said to the librarian, "I'm sorry! I'm sorry! Thank you, thank you! " As he spoke, he ran down the stairs and returned to his dormitory.
He turned on the light and began to solve the problem at once.
3. Hua
Born in a grocery store family, he was sickly since childhood, but with strong perseverance and lofty pursuit, he finally became a generation of mathematicians.
Hua especially liked math when he was a teenager, but his math performance was not outstanding. 19 years old, an excellent article shocked the famous mathematician Xiong Qinglai at that time. From then on, under the guidance of Mr. Xiong Qinglai, he embarked on the road of studying mathematics. In his later years, he popularized and applied pure mathematics to industrial and agricultural production for the sake of national economic construction, and struggled for the construction of the motherland all his life! Grandpa Hua carefully cultivated the younger generation, so that young mathematicians can thrive and stand out. After work, he did not forget to write some popular science books for his friends for many years. Grandpa Hua once introduced an interesting math game to his classmates: a teacher wanted to know which of his three students was smarter. He adopted the following methods: prepare three white hats and two black hats for them in advance, and then tell them to close their eyes and put them on separately.
The three students looked at each other, hesitated for a moment, and said in unison that they were wearing white hats.
Smart reader, think about it. How do they know the color of the hat? "In order to solve the above problems, let's first consider the problem of' two people 1 black hat and two white hats'. Because the black hat is only 1, as soon as I wear it, the other party will immediately say that he is wearing a white hat. But he hesitated for a moment, which showed that I was wearing a white hat.
In this way, the problem of "three people, two blacks and three whites" will be solved. If I wear a black hat, the two of them will become a question of "1 two people with black hats and two people with white hats". They can answer it right away, but they all hesitated for a while, which means that I wear a white hat and all three of them have gone through the same thinking, so they all think it over. Students may clap their hands and say it is wonderful. Grandpa who came to China later complicated the original problem. How to solve the problem of "n people, n- 1 black hat and several (not less than n) white hats"? In the same way, it is easy to solve. He also warned us that being good at "retreating" complex problems, "retreating enough" and retreating to the most primitive place without losing importance are the secrets of learning mathematics well.
4. Hua: One day, the teacher came up with a math problem "I don't know the number of things". The teacher said that this is a famous calculation problem in Sun Tzu's mathematical classics: "There are countless things today. Three or three numbers leave two, five or five numbers leave three, and seven or seven numbers leave two. What is the geometry of things? " "23!" As soon as the teacher spoke, Hua blurted out his answer. At that time, Hua had not learned Sun Tzu's calculation. He thought in the following wonderful way: "three-three numbers leave two, seven-seven numbers leave two, and the remainder is two." This number may be 3×7+2=23, and 5 divided by exactly 3, so 23 is the number you want. " Hua denied that he was a genius.
5. Archimedes: Once, the son of Archimedes neighbor Jenny went to Archimedes' small yard to play. Jenny is very naughty and a very lovely child.
Zhanli raised his red face and said, "Uncle Archimedes, can I use your column as a pillar of the church?" "yes." Archimedes said. After little Janley erected the post, he was going to add a ball to it according to the model of the post in front of the church. He found a cylinder, because its diameter is exactly equal to the diameter and height of the cylinder, the ball plopped into the cylinder and could not be poured out. So, Li Zhan called Archimedes. Archimedes saw this situation and thought: the height and diameter of the cylinder are equal, and the newly embedded spherical surface is not the inscribed spherical surface of the cylinder. But how do we determine the relationship between a sphere and a cylinder? At this time, Xiao Li Zhan brought a basin of water and said, "Excuse me, Uncle Archimedes, let me wash the ball with water, which will be cleaner." When Archimedes' eyes lit up, he hugged little Janley and said lovingly, "Thank you, little Janley, you helped solve a big problem."