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246 Tsinghua University of Science

Liu Juan looked at the body, took out his cell phone and dialed a number, and then left. Liu Juan knew that someone from the Dragon Group would handle the matter.

Liu Juan returned to the villa and felt the demonic energy vibrating in his Dantian. He had an idea and wondered whether fighting would have a certain effect on the demonic energy.

The camphor tree in front of him was as thick as a basin. A straight punch filled with demonic energy made the whole tree shake. The leaves fell, mixed with some unripe small fruits. Liu Juan pondered for a moment. This punch actually made the tree shake.

With only three points of force, the effect achieved with the same force is at least three times greater, which is essentially different from before.

The stronger the demon element, the better the effect of controlling objects from the air. Similarly, the more powerful the boxing is, and the more light and ghostly the footwork is.

There is no way to improve the control of the body by the consciousness with the demon element, and it is still not very smooth. Liu Juan tried to do a few difficult movements that can be easily completed in the game, and found that the requirements for physical strength of such movements are really extraordinary.

of high.

Changing the rhythm, changing the direction of attack or even changing the force at extreme speed is by no means as simple as it sounds. Under the influence of inertia, recoil, gravity and high load, it is an extremely severe test for bones, muscles, ligaments and joints.

Just having a strong body is not enough.

In order to complete the action of leaning back, turning and side kicking, Liu Juan tried countless times. Just like a person who doesn't exercise regularly suddenly wants to do splits and press the ligaments. When the muscles move at the moment of consciousness, the tearing pain is almost unbearable.

I couldn't bear it, my whole body was twitching, it was almost self-mutilation.

"Sigh, the improvement I will get if I continue like this is too little, but I am not willing to improve my strength only in the game. It will be more effective to train for a month without fighting a real battle."

Thinking of this, Liu Juan suddenly remembered the Long Group group, "By the way, I should go find them."

Liu Juan found a way to solve the demon element. He couldn't help but feel very happy when he thought that he would not go crazy. Returning to his room, Liu Juan started to solve the problem again. This time it went very smoothly. He solved it in less than two hours.

Two questions.

Liu Juan solved the third problem: the inscribed square of a curve

[Prove or disprove that on any simple closed curve in the plane, four points can always be found, and they can form a square.

Such a seemingly basic problem has not yet been solved! It has been proved on this blog that there are always four points that can form a square on any convex polygon. By improving the proof method, the conclusion can be extended to concave polygons.

At present, there seems to be a certain conclusion about sufficiently smooth curves; but for arbitrary curves, this is still an unsolved problem. There are all kinds of curves on the plane, and it is uncertain whether we can really carefully construct one

A weird curve that doesn’t meet the requirements.]

And there’s a fourth problem: the circular runway problem

[There is a circular runway with a total length of 1 unit. n people start from the same position on the runway and run clockwise along the runway. The speed of each person is fixed, but the speed of different people is different. Prove or disprove

, for each person, there will always be a moment when the distance between him and everyone else is greater than 1/n.

At first glance, this problem is no different from other very clever elementary combinatorial mathematics problems, but what is incredible is that this problem has not been solved until now. The best result so far is that when n ≤ 6, the conclusion is true

. Intuitively, for larger n , the conclusion should also hold, but no one has yet proven it.】

Liu Juan breathed a sigh of relief. He didn't know that he had solved three major mathematical problems in the world. From today on, his name will always be in the history of mathematics.

From tomorrow on, he is no longer a student, but the greatest mathematician in the world and the youngest mathematician in the 21st century.

Tsinghua University is the highest university in China (English name: Tsinghua University). It is located in the prosperous garden area in the northwest suburbs of Beijing. It was developed on the sites of several royal gardens of the Qing Dynasty.

The School of Science is located in the northwest district of the Tsinghua University campus. It consists of the newly built Science Building (Meng Minwei Science Museum) and Life Science Museum in the 1990s and the Science Museum and Chemistry Museum built in the 1920s and 1930s.

Museum, Biology Museum and Meteorological Observatory form the elegant science buildings of the School of Science. The School of Science of Tsinghua University was founded in 1929. Many well-known scientists, academicians, experts and scholars in our country today are from the School of Science of Tsinghua University. In 1952, each of the School of Science of Tsinghua University

After 1978, in response to the needs of national construction and scientific development, Tsinghua University successively established the Department of Applied Mathematics, the Department of Modern Applied Physics, the Department of Chemistry, and the Department of Biology.

The Department of Science and Technology has four science departments. With the approval of the State Education Commission, the School of Science of Tsinghua University was officially restored and rebuilt in 1985, and Academician Zhou Guangzhao, the dean of the Chinese Academy of Sciences, was hired to concurrently serve as the dean of the School of Science, marking that Tsinghua University’s science disciplines entered a new period of development. 1999

The Department of Applied Mathematics and the Department of Modern Applied Physics were renamed as the Department of Mathematical Sciences and the Department of Physics respectively. [On June 2, 1997, the Center for Advanced Research of Tsinghua University was established with Nobel Prize winner Professor Yang Zhenning as the honorary director. August 30, 2002

The Zhou Peiyuan Applied Mathematics Research Center of Tsinghua University, with the famous applied mathematician Professor Lin Jiaqiao as the honorary director, was established. It has taken a new step towards creating an internationally renowned academic research center and cultivating outstanding science talents and academic masters.】

The next day, Liu Juan came to the School of Science of Tsinghua University and saw many of his classmates beaming with joy. When he asked, he found out that there was going to be a freshman dance.

It turns out that every year after freshmen at Tsinghua University enter the school, the brutal military training is followed by the long-awaited freshman dance. Generally speaking, before the dance starts, the boys have already taken the initiative to find a dance partner. So before the dance starts, it is often seen that the boys hold their hands

Holding roses and wearing formal attire, the girls gathered downstairs. When the time came, bicycles whizzed past, carrying newly dressed girls on the back seats. Different departments may organize dances in different ways. At that time, there are three things

They have something in common. One is the "literacy" before the dance starts, which teaches everyone the basic dance steps; the other is that the ratio of men to women is never coordinated. In most departments of Tsinghua University, which is famous for engineering, there are more men than women. It is said that the 7-character class in the Department of Mechanical Engineering

There are only 6 girls in total (there are 4 girls in Class 8 of the Department of Mechanical Engineering), so it is often seen that the girls’ publicity board downstairs is covered with invitations to the freshmen dances of engineering departments or social gatherings from several departments; thirdly,

After the dance, the number of couples increases sharply. Sometimes they also join forces with other nearby fraternal universities to achieve a harmonious ratio of male and female students. For example, in 2008, Tsinghua University’s Basic Science (Department of Physics) and Peking University’s Yuanpei class held a party.

Named "Elemental Coincidence"

The School of Science at Tsinghua University has three departments: the Department of Mathematical Sciences, the Department of Physics, and the Department of Chemistry. Liu Juan found Zeng Zhen and gave Zeng Zhen two problems he had solved.

Zeng Zhen asked in disbelief; "You solved three more questions."

Liu Juan nodded and asked, "Professor Zeng, see if this is how it is explained."

Zeng Zhen said in his heart: How do I know that none of us here can solve these three questions?"

Zeng Zhen calmed down and said, "Go to the classroom first and I'll call you after I finish reading."

Liu Juan said: "Okay, Professor Zeng, I'll go then."

Zeng Zhen waited for Liu Juan to go far away, then he said to the two white-haired old men beside him: "Old Hu, Old Li, come, come, come, let's take a sneak peek."

The old man in Chinese tunic suit said: "What are you so excited about?"

Zeng Zhen said: "Old Li, you will know when you see it."

Lao Hu came over and said, "What is it? Let me take a look!"

Zeng Zhen said: "Don't worry, let's look at the questions one by one. Here, this is for you, this is for you, okay, give me the twenty pages."

When Lao Hu saw "a square inscribed in a curve", he couldn't help but be startled. He hurriedly read one page, then another, and then stopped. He just continued reading page by page. After half an hour, he finally grew

He took a long breath and said, "Old Zeng, you figured it out."

Lao Li also finished reading it at this time, with tears in his eyes, and said: "I thought I would never see the solution again in this life, Lao Zeng, I thank you."

Seeing that Zeng Zhen didn't answer, Lao Li and Lao Hu were stunned for a moment. In the blink of an eye, they saw Zeng Zhen's face trembling. They were both extremely smart people. At this time, they already knew that Zeng Zhen had not solved the problem. You know

Who is it? All we have to do is wait for Zeng Zhen to finish reading and wait for Zeng Zhen to speak.

Another half hour passed before Zeng Zhencai took a breath. He raised his head and saw two pairs of questioning eyes.

Zeng Zhen said: "You have all finished reading."

Lao Li and Li nodded, and Zeng Zhen said: "We have produced the greatest and youngest mathematician in China. He is the world..."

Lao Hu said: "Okay, it's that child."

Zeng Zhen nodded and said: "That's that kid. Now he is the youngest mathematician in China and the youngest mathematician in the world."

Lao Li looked at the other two questions and said: "He can solve these three questions, which has been proven. We are going to do it now..."

Zeng Zhen said: "No, now is not the time. He still has a few questions in hand. We will wait for him to solve them before announcing them to the public."

Lao Li said: "Old Zeng, we can't do this. I am the president of the School of Science. Now, let's announce it to the public! We can't delay this. If it's too late and foreigners get in first, we will be China's sinners and we will never

Sorry for this child."

Zeng Zhendao: "Okay, let's hold a press conference! I hope the reputation will not ruin this child."


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