Experience of reading in China 1 Selected Works of Huake Puwen is a mathematics extracurricular reading suitable for middle school students, which combines the essence of mathematics research achievements in China for decades. Although I have some incomprehensible knowledge when reading this book, or it is beyond the chapters I have learned, I have marked it so that I can re-understand the profound theory after learning the relevant basic knowledge in the future.
The core theory in Talking from Yang Hui Triangle is the basic properties of Yang Hui Triangle, and the binomial theorem derived from it is very important. And its two special cases also amaze me (the deformation of 2 and 0). Subsequent series also revolve around this theorem. From Zu Chongzhi's Pi, I was impressed. Starting from Zu Chongzhi's pi of 7/22 and density of 355/ 1 13, China introduced division and continued fraction, thus explaining the origin of ratio and density. The teacher of Olympiad Mathematics once talked about finding the greatest common divisor of two numbers by division, while Professor Hua can further find the reduced fraction of the ratio of the original two numbers by adding continued fractions. This little bit can reflect Professor Hua's spirit of assiduous study. Later, I talked about the popular science knowledge about astronomical calendar, which opened my eyes again.
From Sun Tzu's ingenious calculation, I have mastered a method of solving a kind of congruence problem by turning division, and used this method to solve a binary linear equation. Polynomial division can help us solve similar problems of polynomials.
I don't have much experience in mathematical induction, because xu teacher introduced it comprehensively, but I also learned more ways to solve problems.
What I learned the most from talking about the mathematical problems related to the honeycomb structure is that the bottom of the honeycomb is actually composed of three diamonds, and the consistent law is that the obtuse angle is equal to 109 28' and the acute angle is equal to 70 32'. Admirably, bees calculate this angle more accurately than scientists. The honeycomb structure makes it use the least materials, the largest volume and even more impressive. "Genius and Exercise" made me understand that genius is not born, but the result of acquired exercise.
In the second part of the book, Professor Hua showed us a glorious page in the history of Chinese mathematics, and also discussed with us the methods of learning science, such as: learning science needs enthusiasm, but also needs lasting enthusiasm; To learn science, we should be ambitious, but we should not cross the line and get to the bottom of it; Science should not only be able to create, but also be good at accepting existing achievements; Self-study can achieve the purpose of learning, perseverance and patience are the guarantee of success and so on.
In the third part of the book, Professor Hua talked about the knowledge of mathematical application, in which the "overall planning method" and "optimization method" are still fresh in his memory. Learning the "overall planning method" can make a thing or even a project complete with the highest efficiency. If you learn the "optimization method", you can choose the best scheme in the least time.
After reading this book, I saw a lot of new things in the math museum, which opened my eyes and benefited me a lot. Although I haven't finished reading this book completely, I will definitely study the unread part after I have mastered more basic knowledge in the future.
Success is a lucky thing for everyone, but not everyone can succeed. Success is not that cobblestones on the roadside can be picked up casually, nor that grass in the field can be found casually. If you want to succeed, you have a long way to go, and there are many setbacks during this period.
1930 One day, Xiong Qinglai, head of the Department of Mathematics at Tsinghua University, was sitting in his office reading a magazine Science. Looking at it, I can't help but exclaim: "Which country is this China from?" Everyone around shook their heads. "Which university does he teach at?" People looked at each other. Finally, a Jiangsu-born teacher thought for a long time before slowly saying, "My brother has a classmate named Hua. Which university did he teach at? " ! He only went to junior high school and heard that he worked as a clerk in Jintan Middle School. "
Xiong qinglai was surprised. A person who graduated from junior high school must be a genius to write such a profound mathematical paper. He immediately decided to invite Hua to Tsinghua University. Since then, Hua has become a teaching assistant in the Department of Mathematics of Tsinghua University. Here, he is like a duck to water, swimming in the ocean of mathematics every day, leaving only five or six hours of sleep for himself. It's hard to believe that flowers have developed the habit of reading books after turning off the lights. Of course, he has no special function, just a logical thinking activity in his mind. He took a book and put it under the lamp, looked at the topic and thought for a while, then turned off the lamp and lay in bed, closed his eyes and meditated, and began to do the problems in his mind. Turn over and get out of bed when you encounter difficulties, and open your books for a while. In this way, a book that took ten days and a half months to finish, he finished it in one night and two nights. Hua is regarded as a rare assistant. The following year, his papers began to be published in famous foreign mathematical magazines. Tsinghua University broke the precedent and decided to promote Huawei teaching assistants with only junior high school education. A few years later, Hua was sent to Cambridge University in England to study. However, he doesn't want to study for a doctorate, but only wants to be a visiting scholar. Because being a visiting scholar can break through the shackles and learn seven or eight subjects at the same time. He said, "I came to study in England, not to get a degree."
Hua didn't get a doctorate. During his two years in Cambridge, he wrote 20 papers. On the level, every article can get a doctorate. In one of the studies on "the problem in the tower", his theory was named "Fahrenheit theorem" by the mathematical community.
Hua once said: "There is no smooth road to science, and there are countless reefs and shoals in the long river of truth. Only herb gatherers who are not afraid of climbing can climb the peak and find the fairy grass; Only those who are not afraid of the waves can go deep into the water to look for pearls. Every truth in science has been obtained through numerous setbacks and failures. We must face up to setbacks and treat them correctly. Only in this way can setbacks become a ladder for us to succeed. "
After reading Hua's story, I feel that Hua has a spirit of loving science, studying hard, not seeking fame and fortune, and devoting himself to the cause of mathematical research that he loves. He abandoned the money, fame and position that the world sought. I think we should learn from his spirit and his refined realm.
Finally, I want to say that setbacks can be overcome, and setbacks breed success, provided that we have firm beliefs and the spirit of going forward. Satisfy these conditions, setbacks will be trampled under your feet, and tomorrow is the time to clear the clouds.
In the winter vacation, I read the famous biographer Hua, whose touching true story benefited me a lot.
This book is about Hua's rough childhood. He was born in poverty and disliked, but he was naughty and had his own ideas. At the age of eight, Hua met his mentor Wang Weike. Teacher Wang Weike told him: "You must be clear about your goals in learning knowledge and concentrate on your research to succeed." These words inspired Hua a lot. He studies hard at mathematics which he loves.
On September 28th, xx, China and Japanese troops began to bomb Kunming. He was buried in the bombing dust several times, but he survived with a strong will. And during this period, he insisted on publishing for xx years. Hua went to the Soviet Union and the United States for academic exchanges. In America, the family finally got together. After the war, the American government forced Hua to stay in the United States, but he resolutely returned to his motherland and became China's son forever. 1in June, 985, Hua died of a heart attack at the podium of a Japanese university at the age of 75.
The story that scares me in the book is: once, Japan bombed China's bomb shelter and buried him, but he bravely defeated his death and successfully won the rescue of his relatives and friends.
After reading this book, I learned about the bumpy and extraordinary life of Hua, the father of modern mathematics in China. His strong will, hard work and enterprising spirit and quality inspire me deeply. We should learn from his great spirit and contribute to the development of our motherland.
Hua's reading experience 4 Hua was born in a small businessman's family in Jintan County, Jiangsu Province,191012. He is talented and likes numbers since he was a child. 19 years old, he pointed out that a university professor's paper was wrong with his self-taught mathematical skills, and wrote "Why the solution of Su Jiali's quintic algebraic equation could not be established". Later, he went to America when he grew up. A monthly salary of $20,000, a car and a house. But he often said: "Although Liang is good, it is not a place to live for a long time!" Later, he returned to the motherland and died in 1958 at the age of 75.
After reading his story, I was attracted by his story. Being able to point out the mistakes in a university professor's thesis at an early age shows that he has a solid foundation in mathematics, and then he will point out the mistakes, otherwise he will definitely find it ironic. And his patriotism is also worth learning. Although he is in the United States, his salary is very high, but he has not forgotten his mother's kindness, and he must return to his motherland to give full play to his mathematical expertise and win glory for the motherland. His mathematical attainments and patriotism are really worth learning!
In my five years of primary school life, I have always aimed at Huawei. Do more than a dozen Olympic math problems every day to increase your own number of questions. So my math scores have always been among the best in my class. This is because Olympiad opened my mind, and also because of my diligence. These are all the life lessons I learned in China's books.
Yes, "cleverness lies in diligence, and genius lies in accumulation". In our daily life, cleverness lies in diligent practice at ordinary times, and becoming a genius lies in accumulation at ordinary times. We studied hard according to Hua's instructions and finally embarked on the road to success!
Today, all the teachers and students in our school went out to watch a drama-Young Hua.
The plot is like this: Hua loves learning-he takes off his shirt when doing exercises, but he doesn't take it off, but stuffs it into his pants; He should wear a robe in class, so he took it out of his pants. The teacher didn't know and praised him. Later, the teacher knew the truth, and the principal and other teachers knew it. Some said to let him drop out of school, while others said to give him a chance to correct it. The headmaster came and didn't fire him. Instead, he said to him, "I'll play catch with you after class." Hua went to the headmaster's house and borrowed a copy of Su Jiaju's Solution of Algebraic quintic Equation. Since then, he has been watching and doesn't sleep at night. When guests buy something, they should shout. Thanks to Hua's own efforts, the headmaster once made him a "China teacher". He spoke very well, but one teacher was not convinced, so he came up with a problem: a businessman named Tao, who had three sons-Da Tao, Er Tao and Xiao Tao, was dying, and he had to give one fifth to Da Tao, one seventh to Er Tao and one tenth to Xiao Tao. Hua fiddled with it for a while, and then worked it out plausibly, which made the teacher have to admire. Later, when his mother died, he regretted drinking the chicken soup stewed by his mother. He became very weak, fainted and contracted the plague.
After the headmaster knew it, he took two small bottles of medicine bought by the client to visit Hua who was sleeping. His father is going out to buy food and cook for China. The headmaster picked up the paper written by Hua and read it. Later, the headmaster saw that the solution of Su Jiaju's algebraic quintic equation was not valid. These sixteen words were so angry that I wanted to throw them away, but I couldn't bear to ruin Hua's hard work. His father came back and brought the crowd. At first, his father didn't know the reason why the headmaster left. When his father finds out, he will throw away Su Jiaju's The Solution of Algebraic quintic Equation and Hua's Why the Solution of Su Jiaju's Algebraic quintic Equation Doesn't Hold. So everyone begged his father not to throw it away with Hua, but his father threw it away anyway, but he was sad to see his son. Later, Hua lost consciousness in his right leg. One day, Hua's "Why Su Jiaju's Algebraic quintic Equation Solution Doesn't Hold" was published in a magazine in Shanghai. A professor in a school admired him and hoped that he could become a teacher in this university. He also prepared a train ticket for him.
After watching this drama, I feel a lot: one should be strong and unyielding for his dreams; Take it seriously; Don't be perfunctory; Don't give up pursuing this dream because of the frustration caused by difficulties. Hua's determination to study has brought me motivation. In this world, there are so many people who persist in flying their dreams, such as Ji Xianlin ... In this process, someone will remind you that when you are possessed, someone will give you a warning sign to remind you to avoid detours. However, it is not always possible for someone to remind you at the right time that you need to keep your innocence and know yourself in order to achieve something. For example, Su Jiaju's "Solution of Algebraic quintic Equation" has not been studied and discussed, but Hua proposed and published "Why Su Jiaju's Algebraic quintic Equation Solution is Not Established". Finally, Hua became one of the famous mathematicians in China. It is conceivable that we should study and explore ourselves and open up a world of our own, and other people's views may not be consistent with yours.
Liu Hua (1910-1985) is a modern mathematician in China, the founder of new China mathematics research, and one of the most influential mathematicians in China in the world.
Professor Hua's bold questioning spirit is admirable. At that time, Hua was only the owner of a grocery store, but he was not afraid of being laughed at by others, dared to doubt the theory of Su Jiaju, a mathematical authority, and boldly denied his wrong conclusion, which was really commendable. This spirit of doubt is the golden key for him to open the kingdom of mathematics.
It is an amazing miracle that Hua has become a superstar in the contemporary world of mathematics. He just graduated from junior high school. He once said that he was just a junior high school graduate from a poor family.
It is with his perseverance and indomitable spirit that Hua realized his pursuit and achieved today's success. It is precisely because of his spirit that he deeply touched, educated and inspired people and benefited us a lot.
Hua was crippled by a high fever, but poverty and illness strengthened his ambition to learn math well. He always devotes himself to studying hard. He also studied English, French, German and Russian, published many papers and became a famous mathematician at home and abroad.
In summing up all his academic spirit, Hua said: "We must be practical in our study, and we can't take one step. Take a step and you will pay a heavy price; If you take a few more steps, you can't make up for it, and you will be completely discouraged. "
I will take this sentence as my motto, study hard and try to be a learned person.