Born to be human, everyone wants different things.
Some people love fame and fortune and pursue money, while others despise worldly prosperity and just want to spend the rest of their lives in a down-to-earth manner.
As Tao Yuanming wrote in the biography of Mr. May 6th, "Don't worry about wealth, don't worry about wealth." Yu Jianchun is such a person.
As a courier, he solved the world-class century-old math problem, but he didn't seek fame or fame in academic field, just wanted to get married and have children and live in a down-to-earth way.
Excessive partiality, dropping out of school and working to reduce family pressure.
Yu Jianchun was born in Xinyang, Henan.
As a child of a rural family, his family conditions are not very good: several people in the whole family only live on an acre of land at the door.
At that time, it was not easy for their family to eat enough, and it was even harder for their children to study. Therefore, considering the conditions at home, Yu Jianchun, a "scum" with poor grades, has never taken a culture class since he graduated from junior high school.
However, the name "scum" is actually only aimed at Yu Jianchun's average grades. Because if only from the single subject, Yu Jianchun's performance is actually quite good.
Especially math. Because of his interest and talent, Yu Jianchun was almost among the best in mathematics at that time.
In addition, Yu Jianchun often studies his neighbor's math homework in senior three, from which he draws ideas for solving problems and forms his own thinking mode.
It can be said that such learning methods and habits also laid the foundation for Yu Jianchun to solve the century-old problems to a certain extent.
Perhaps it is also because of dealing with land since childhood that Yu Jianchun chose animal husbandry as his junior college. But perhaps because of his major unpopularity, he didn't look for a job immediately after graduating from college, but drifted around doing odd jobs.
In order to make money, Yu Jianchun tried all kinds of dirty work, such as construction workers, security guards and couriers ... In this way, Yu Jianchun traveled all over China, and finally chose to settle down and found a job in a logistics company.
Running for money but still not forgetting dreams.
Nietzsche said: "Every day that never dances is a disappointment to life."
Although Yu Jianchun has been repeating mechanical packaging all his life, he has never forgotten his passion for mathematics.
Whenever he gets off work or has a rest, Yu Jianchun will use his spare time to teach himself mathematics.
Actually, it is not easy to be a courier.
According to Yu Jianchun, his job is usually from 8: 00 a.m. to 10: 00 p.m., and he has to work for more than ten hours every day, packing thousands of cartons.
After a hard day's work, he will continue to study math. ...
This kind of life is incredible in the eyes of many people, but for Jian Chun, the time of learning math by himself is the most leisurely and beautiful time of his day.
Perhaps it is because of love that I feel relaxed. For a long time, Yu Jianchun was deeply addicted to the ocean of mathematics. Because of his love, his home is full of calculus papers and math-related books.
In addition, after work, Yu Jianchun often goes to the university to borrow books related to mathematics for self-study.
In fact, anyone who has studied college mathematics will know that math books are always so obscure, and sometimes they are just as difficult to chew without the guidance of teachers.
This is true for us, and it is also true for Yu Jianchun who loves mathematics.
After all, Yu Jianchun has not systematically studied mathematics above junior high school. Even though he has an extraordinary talent for mathematics, some places are hard to understand.
Therefore, Yu Jianchun would have the cheek to ask a teacher a question he didn't understand with a book in college. Although such behavior looks funny, it stems from the thirst for knowledge, and he has always adhered to such seemingly embarrassing habits.
Time flies, spring goes and winter comes. In this way, day after day, Yu Jianchun's studious attitude touched many teachers and students on campus. At the same time, his mathematical thinking and knowledge have been greatly improved with time.
It is because of so many years of unremitting research that Yu Jianchun finally solved a complicated problem that puzzled mathematicians for a hundred years: Michael's gram number.
Overcome the century-old problem
Yu Jianchun learned the number of grams of Michael from college textbooks. At that time, when Yu Jianchun saw it, he had great curiosity and challenges.
Camichael number, also known as pseudo prime number, is named after mathematician Camichael.
After it was put forward in 19 12, it has been an unsolved problem for a hundred years, and many mathematicians and enthusiasts are stuck in this problem.
But Yu Jianchun solved this century-old problem through his unique way of thinking.
After solving the problem, Yu Jianchun was very excited. He submitted his inspection process to many university professors by email at the first time.
However, perhaps because Yu Jianchun's inspection process was a bit "deviant", he didn't get an answer until a long time later. Other times, it's like sinking into the sea.
The year that Yu Jianchun shocked the world was 20 16.
At this time, a professor from Zhejiang University finally replied to Yu Jianchun's email and invited him to attend a math seminar.
After receiving the notice, Yu Jianchun naturally attended.
However, when they first saw Yu Jianchun himself, everyone was shocked. Just looking at their clothes, they never thought that such a complicated problem was actually overcome by such a seemingly simple man.
However, when Yu Jianchun took the stage to demonstrate and check his calculus steps, everyone could not help cheering for him: although Yu Jianchun's knowledge system seemed imperfect, his thinking was exquisite and impressive.
summary
As a courier who graduated from junior high school, he solved a mathematical problem that mathematicians could not solve. This disparity has attracted the attention of many media.
At that time, both minority and mainstream media were scrambling to report Yu Jianchun's deeds.
It is said that in order to praise Yu Jianchun's behavior, CCTV News specially produced a two-minute documentary about Yu Jianchun and mathematics. The China Journal even praised its research results. ...
In this way, almost overnight, Yu Jianchun became a hot academic star and network celebrity.
At that time, many media and other units wanted to arrange jobs for him, but Yu Jianchun refused these temptations one by one and admitted that he just wanted to get married and have children and live an ordinary life.
After all, everyone's pursuit is different. Not everyone pursues fame and fortune.
For him, there are more important things than fame and fortune.
After all, mathematics is Yu Jianchun's passion and joy in life. He doesn't want to let interests pollute his "pure land".