"How's it going? Where did you learn?" After Teacher Li came to Zhao Xiancai, he sat on the empty seat beside him and asked Zhao Xiancai with a smile.

"Ah? Teacher, wherever you talk, I will learn something." Zhao Xiancai started to pretend to be stupid.

"Haha, you don't really think that I haven't noticed that you sit there every day without looking at the blackboard and keep your head down, right?

Why don't you go up to the podium and try to see if you can see clearly what's going on below?"

Seeing Zhao Xiancai pretending to be stupid, Teacher Li also said with a smile.

"So, teacher, you already knew about it? I thought that the place where I was sitting was relatively hidden, and you never noticed it. I'm done. I'll have two or three more big lessons and I'll almost be done with it."

After hearing what Teacher Li said, Zhao Xiancai also laughed with Teacher Li and said.

"I'll go and tell you why he spent most of the time with his head down reading and not looking at the blackboard. It turns out he was studying on his own."

"As expected of a man who has been on the news network."

"Maybe it's a boy."

"Is the important point that this boy is still a man? The important point is that he has been on the Xinwen Network!"

…

During the last class, I paid attention to some of Zhao Xiancai's classmates from time to time, and finally found out why Zhao Xiancai never listened to the teacher's lectures. It turned out that he came to class just to get regular grades.

It's not like them. They preview the lesson first and then listen to the teacher in class. Sometimes they still don't understand some parts. They can only ask the teacher or classmates after class, or search on the Internet themselves. Some people even worse.

, just realize it yourself.

"You are quite fast. On the first day, I found you with your head down reading a book by yourself, not looking at the blackboard or listening to my lecture.

But at that time, your name was often mentioned among the teachers in our School of Mathematics, so I didn’t care about you. I thought that if you didn’t do well in the final exam, I would bring this matter up.

explain.

I didn't expect that before the end of this period has come, you would make a big move.

Are you studying when there is class, or when there is no class?"

Teacher Li said to Zhao Xiancai, and finally asked with a little curiosity. He felt that Zhao Xiancai should have spent his previous time conjecturing the Erdős arithmetic sequence. He solved the Erdós arithmetic sequence conjecture.

Before, he probably didn't have time to study other content outside of class this semester.

If you can make this progress just by reading books when you are in class by yourself, it will be very fast.

"I mainly learn it during class. I usually study other content when I'm not in class." Zhao Xiancai explained.

"Yes, it seems that I really underestimated you back then. Did you have any problems when you were studying on your own? If you encounter any problems, you can always come and ask me."

Teacher Li said to Zhao Xiancai again, and after Zhao Xiancai finished answering, he stood up and left the seat.

After Teacher Li came to the podium, the break time was almost over. Zhao Xiancai wanted to ask other students how they knew they had received a one million bonus, and they had to wait until the end of the class.

.

Soon, at the end of the class, Zhao Xiancai finally found a classmate and asked about the situation.

It turns out that this morning the official account of the Student Union of the School of Mathematics and Mathematics published an article. This article was specifically about Zhao Xiancai, and it also included several photos of Zhao Xiancai receiving the award yesterday.

This has been posted to the public account. Can the students in the School of Mathematics not know about it?

As long as a few people know it, everyone in the entire academy will soon know it.

"I asked why someone was taking pictures yesterday. It turned out to be from the Student Union of the School of Mathematics. Zhang Qiuyu didn't tell me about this?"

After asking a classmate, Zhao Xiancai thought to himself with sudden enlightenment.

How did he know that the photos were taken in front of him by people from the Student Union of the Mathematical College? Zhang Qiuyu didn't know that he didn't know those people were students from the Student Union of the Mathematical College, so naturally he didn't tell him specifically.

"Hello, um... can you add me on WeChat?"

Just when Zhao Xiancai was stunned, a clear female voice suddenly came to his ears.

Zhao Xiancai turned his head and looked at the voice, and found that it was a girl with a round face and a pair of ponytails. This girl looked quite cute, but she was about 1.7 meters tall, which seemed different from her cute appearance.

Somewhat inconsistent.

"Is there anything you need?"

However, although this girl was cute, Zhao Xiancai did not immediately agree to join her.

"Well... I didn't understand something, and I wanted to ask you." The female voice with twin tails explained.

"That's okay, but if you have any questions to ask me, I can usually only get back to you at night. I'm usually in the library and don't look at my phone. You can also ask Teacher Li."

After hearing that she was here to ask him a question, Zhao Xiancai took out his cell phone and said to her.

He now has almost 200 friends on WeChat, but most of these friends are just gathering dust, and some of them have barely even talked to each other since they were added as friends.

There is one more person now, but she is not much more anyway.

"What didn't you understand?" Zhao Xiancai asked again when adding friends.

"Here, why do we need to regress the square of the residual on its variables?"

"Because all variables are included in the hypothetical model, there are no other variables in this error, it is just pure error, and this variable has nothing to do with the model...

Is there anything you don’t understand?”

Although he felt that this girl, who seemed to be a senior, might not be too smart to ask such a simple question, Zhao Xiancai still explained to her the answer to the question she heard in great detail, and finally asked.

"Yes, yes, but I have classes later, so why don't I send you the questions via WeChat this afternoon."

The female voice with twin tails said.

"Well, that's fine, I have classes later." Zhao Xiancai nodded.

After the morning class ended, Zhao Xiancai found that Professor Deligne had replied to him when he went to the cafeteria.

After asking Dean Yang about the mathematics seminar at Princeton University, Zhao Xiancai responded to a letter to Professor Deligne, but he replied via email.

The content of his letter roughly means that he accepted the invitation and went back to participate in the seminar. By the way, he also asked Professor Deligne about the seminar in the letter.

Opening the letter replied by Professor Deligne, Zhao Xiancai read it carefully. Zhao Xiancai's English level is now very good. After all, he can write papers directly in English.

However, due to the lack of language environment, Zhao Xiancai's spoken English is still a bit rusty.

Logically speaking, in a school like Beijing University, it is quite simple to find international students to practice English.

However, Zhao Xiancai spent all day either in the library or in the classroom, so he had no time to practice English with international students.

Moreover, many of the international students who come to Peking University are very good at Chinese. They also want to communicate with students from China and practice their Chinese more.

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Chapter completed!