Across the west coast, in a white room, a president with a cool hairstyle was staring sharply at the CIA director in front of him.
"Waste! After investigating for such a long time, activating so many resources, and spending so much money, you found nothing!"
"So far, apart from knowing that the other party has launched a project related to nuclear energy, I don't know any other details. Waste, really waste!"
The CIA director defended with an innocent look: "This is not our fault."
"In the past few years, many of the secret agents we planted in that country were cleared out, and they were later redeployed. Now it is obvious that they still have no access to those core secrets."
"But what we can be sure of now is that Professor Xu played a very key role in this nuclear energy project, or he guided this nuclear energy project."
"In addition, through investigation, we also found that Professor Xu is conducting research on lithium batteries. He has acquired a materials research institute and has applied for an artificial SEI film in countries protected by international patents around the world.
patent."
"And this patent is used to solve the problem of lithium dendrites in lithium batteries."
"Of course, there are many patents of this type in various countries. We still don't know whether this patent can solve the problem of lithium dendrites."
After hearing this, the president sitting opposite asked: "What is the probability that it can be solved?"
As a businessman who started out as a politician, he has a certain understanding of lithium batteries. Although he does not know a lot and is not as good as professionals, his long-term investment in various businesses has made him aware of the biggest problem with lithium batteries.
It's a lithium dendrite problem.
If this problem can be solved, the prospects for lithium batteries will be quite broad.
The director of CIA shrugged and said: "It is difficult to know whether the other party has solved the lithium dendrite problem by relying on a patent application document alone. This kind of problem is difficult to determine before the other party announces it or gets the sample.
."
"According to the survey, this probability is not high, not even one percent. The laboratory purchased by Professor Xu only had a capital of more than 10 million, which is about 2 million when converted into rice gold."
"A laboratory of this level will basically only have about ten researchers and rely on some patents to survive. It can be said that it is almost impossible to solve the problem of lithium dendrites."
“You must know that every year, there are more than three-digit or even four-digit companies or research institutes around the world, and laboratories are studying the problem of lithium dendrites, including our Albert Electric, which produces hundreds of millions of meters of gold every year.
Investment, but so far there hasn’t been much progress.”
】
The blond-haired president pondered for a moment and relaxed a little: "So it's basically impossible?"
The director of CIA nodded: "Judging from the survey data, this is indeed the case."
Nodding, the president with super cool hair continued: "Hurry up and investigate. I want to know what the nuclear energy experiment of the country opposite is researching!"
"In addition, let the media carry out propaganda, saying that the other party has violated international conventions and is studying news such as the proliferation of nuclear weapons, and at the same time, the diplomatic side will follow up..."
........
Xu Chuan, who had already fallen asleep, naturally did not know about the arrangements on the Atlantic coast and the confrontation between the two great powers.
It was a quiet night. After getting up, he made a cup of coffee. There was a textbook "Linear Algebra and Spatial Analytic Geometry" on his desk.
This is something that will be explained in class this afternoon. Although he is very familiar with algebraic geometry, as a teacher, there is nothing wrong with preparing for get out of class before class.
This doesn't take him much time. For such basic books, a simple flip through is enough.
Moreover, reviewing the past and learning new things, for mathematics, the more basic the knowledge, the more important it is.
The morning passed quickly. After ordering a takeaway and having a simple lunch, Xu Chuan brought the teaching materials to NTU.
The location of the class was changed from the West Building to the public classroom No. 1 in the Shaw Building. This is the largest public classroom on the Xianlin campus of NTU and can accommodate more than 500 people.
Most of the time, there is almost no seats available here.
But today, the entire public classroom No. 1 is not only empty seats, not only the seats are full, but even the stairs and corridors of the public classroom are full of people.
The whole classroom was packed, and there were quite a few students standing in the corridor outside the classroom.
Although not all students who come here have majored in algebraic geometry, and many of them are not even majoring in mathematics, many students who have not signed up for this course are sitting here with their backpacks.
This is legendary.
Ever since the imo and ipho competitions, that person has been breaking world records and creating new history.
When he now stands here as a professor, everyone is curious about what kind of mathematics class he will bring to them.
Of course, before the formal class started, everyone was discussing whether Xu Chuan would really come.
"Do you think Chuan Shen will really come to teach us?"
"It should be true. After all, Nanda has confirmed it on its official website."
"But this is a Nobel Prize and Fields Medal winner, and he still comes to teach undergraduates? Maybe it's just in name, and the students who teach are his students?"
"Isn't it possible? Isn't this just a joke to everyone? God of Sichuan probably wouldn't do such a thing."
"Who knows."
"No! It must be Sichuan God who teaches, I am confident."
"Let me make a bet. I bet fifty cents that the God of Sichuan will come!"
"I'll press a tea egg!"
“I’m buying a Furukawa Yunzhi commemorative edition!”
........
When Xu Chuan came to the public classroom No. 1 of Run Run Shaw Building, even though he had experienced many big scenes, he was still frightened by the sight in front of him.
In the huge public classroom, there is a sea of people, densely packed with students, even lecturers and professors, crowded together, just like the morning rush hour of the subway in a small island country.
This chapter is not over yet, please click on the next page to continue reading! If the air circulation is not turned on, Xu Chuan even doubts whether the air in this classroom is enough for so many people.
Seeing him appear in the classroom, the crowd immediately became commotion.
"Come, come, Sichuan God is really here!"
"It took an hour of high-speed rail and two hours of bus ride! It was worth it to see the God of Sichuan with my own eyes!"
"Kawashen is awesome! He actually came to teach us."
"It will be worth it in my life to listen to the lectures of the Nobel Prize winner and the Philippine Prize Winner once!"
"Wow, wow, wow, I envy the students of NTU. They can listen to it more often in the future."
.........
In the classroom, with the appearance of Xu Chuan, the crowd immediately started cheering.
Many students just held up their mobile phones and started taking pictures, and some even forgot to turn off the flash.
Xu Chuan smiled and said: "I know everyone is interested in me, but I didn't expect so many people to come today. I even saw the dean of our mathematical institute sitting in the crowd."
Shrugging his shoulders, he continued: "Maybe it's been too long since I've had a class. The school leader personally supervised me in the first class. After all, since I took up the post of professor in the second half of last year, it's really a bit strange to start the first class today.
Competent."
As he spoke, his eyes fell on a corner of the lecture theater, where Zhou Hai, Chang Ming, Dean Rong Zhizhuan and other NTU professors and leaders from the School of Science and Technology gathered together.
Noticing Xu Chuan's gaze, several people smiled and nodded in greeting.
Xu Chuan teased the atmosphere and then continued: "Today's course is based on the textbooks of linear algebra and spatial analytic geometry."
"Because the students here today range from undergraduates to postgraduates, the content explained is mainly basic. Some students may wonder why I offer such a basic course."
"For this question, if you listen carefully in the following classes, I think you should gain something."
"Okay, let's start class. I think everyone has previewed it yesterday, so now open the textbook "Linear Algebra and Spatial Analytical Geometry" and let's start with linear equations."
"A system of linear equations is a system of equations in which each equation is linear with respect to the unknown quantity (for example, a system of linear equations of 2 elements). Our country has studied linear equations at least 1,500 years earlier than the rest of the world. In the ninth century AD,
In the chapter "Arithmetic" and "Equations", there is research on linear equations. Interested students can check it out."
"Linear equations are widely used. The well-known linear programming problem is to discuss the linear equations that have certain constraints on the solution. It is widely used in geometry, algebra and other aspects..."
.......
In my previous life, I was not a professor at Princeton for more than ten years.
Xu Chuan has his own method for teaching.
For the mixed open class group of undergraduates, graduate students, and even doctoral students, we will start from the shallower to the deeper, but it will not be completely in-depth. The final depth will be kept at the point where an undergraduate has a vague understanding, and graduates and doctoral students have self-enlightenment.
, is his grasp of the knowledge taught.
The one-hour open class passed quickly. Xu Chuan explained, looked at the students in the classroom who were still writing hard, and put down the chalk in their hands.
"That's it for today's lesson."
For today's class, NTU specially installed two-sided projectors in this public classroom so that students in the back row can more clearly see the blackboard and lecture content in front.
Hearing the sound, the students sitting in the classroom, especially the undergraduates, finally breathed a sigh of relief.
Although university professors are almost the same, turning pages of books faster than falling out, this is the first time that they have flipped through nearly a third of a textbook in one class.
Starting from linear equations, to the determinant and inverse matrix of square matrices, to matrices and their elementary transformations, geometric spaces, n-dimensional vectors and linear equations...
After one class, these undergraduates felt that their minds were filled with knowledge.
But what makes them feel even more amazing is that even though the person on the podium has taught so much, they don't feel dizzy and accept incompetence.
Although many people began to lose track of the rhythm in the middle and later stages, sometimes Xu Chuan's words would suddenly make them realize it, as if this place corresponded to the previous one.
It's like, when the author lays a foreshadowing, the readers don't know it at first, but when connected dozens of chapters later, everyone will suddenly understand that it has been mentioned before.
"No wonder Chuan Shen said before the lecture why we need to teach these basic things." In the lecture theater, a doctoral student put away the hand that recorded the last stroke and couldn't help but sigh:
"I have finished studying "Linear Algebra and Spatial Analytical Geometry" a long time ago. I always thought that I had learned it well. Unexpectedly, after listening to this class today, I discovered that there are still many things in it that I have not learned."
"Including some technical applications, which I have never learned before and never thought of."
The friend next to him nodded and agreed: "Compared with Sichuan God, the professor who taught us algebraic geometry before is so far behind that there is really no comparison."
The doctoral student smiled and said: "How can this be compared? One is a Philippine Prize or Nobel Prize winner, and the other is just an ordinary university professor."
The friend next to him shook his head and said: "No, that's not what I'm talking about, but the teaching attitude, skills, and other things. You know what I mean."
The doctoral student nodded in agreement and said no more.
He also came from an undergraduate degree, and in the current environment, many professors in many universities are perfunctory when teaching students, and many even ask their assistants or students to come directly.
This phenomenon has been experienced by most students at the doctoral level.
But Xu Chuan gave them a completely different feeling.
Of course, this may have something to do with the fact that today's class is the first one, but no matter what, he was greatly inspired here today.
Those skills, experiences, methods, application and association of knowledge points, etc. cannot be learned from books or even from other professors.
For these graduate students who have reached the doctoral level, they know very well that these are the most important things.