Chapter 42 Being Treated as a Senior [Seeking Monthly Tickets and Recommended Tickets]

Xu Yuan took the chalk from Tang Shihong and started writing quickly on the blackboard without stopping. As mathematical symbols appeared to form formulas, the people in the audience couldn't help but widen their eyes.

A thought came to my mind: it turns out that people can really prove it.

"This is a senior from the mathematics department. His logical thinking and reaction speed are a bit too fast!"

"I saw that he didn't bring anything, so I thought he wouldn't do it."

"No wonder Professor Tang chose him to go up and testify. It seems that he is very confident in his ability."

Students who were not in the mathematics department whispered to each other privately and subjectively believed that Xu Yuan was a senior in the mathematics department.

But the mathematics students in the classroom looked confused.

"Do you know this guy?"

"I've never seen it before. It seems like it suddenly appeared today."

"Could it be from another department..."

"I have studied Minkowski before, but I couldn't figure out the proof steps in my mind so quickly. With such a talent for mathematics, I don't think you would choose any other major."

"Could it be that Professor Tang's graduate student is here to attend the class today?"

……

Tang Shihong didn't care about the reactions from the audience. His attention was all on Xu Yuan at the moment. After seeing the entire proof process on the blackboard, the smile on his face became even brighter.

"You have studied Minkowski before. It's not easy to prove his theorem so quickly."

"Even if an average person memorizes the entire proof, they can't achieve your level of proficiency without a deeper understanding."

"I do study some famous mathematicians in history." Xu Yuan nodded in response to Professor Tang's question.

Tang Shihong continued: "I am looking forward to you more and more."

After saying this, his expression suddenly became serious again, and he specifically gave Xu Yuan some instructions.

"You still need to focus most of your energy on university courses such as mathematical analysis, advanced algebraic space, and analytic geometry. Only by laying a solid mathematical foundation can you move forward more steadily and further in the future."

"Like the previous proof of infinite Carmichael number intervals, it is best not to waste time studying it for now."

During the mathematics winter camp, he knew that Xu Yuan liked to tackle difficult problems in mathematics.

Although this is something every math genius would do, it is too early for a high school student to do so. Spending too much time on a problem that many mathematicians in the academic world have not been able to solve for nearly a decade would be a waste of one's own talent.

He attached great importance to Xu Yuan's future and naturally did not want him to be affected in any way.

"Professor Tang..."

Xu Yuan was about to say that he had the confidence to solve this problem, but he was interrupted by Tang Shihong after he had uttered only three words.

"Okay, go down first. I believe you know what to do."

Hearing this, Xu Yuan's lips moved, and he finally decided to wait until the progress bar was officially increased to 100% and all the proofs were completed before telling Professor Tang about this.

As Xu Yuan walked toward the stage, he noticed that many people were looking at him.

I suddenly realized that the conversation with Tang Shihong just now had been misunderstood again.

But he was too lazy to explain anything, so he walked to the last row and randomly picked a seat to sit down.

If some people had previously doubted whether Xu Yuan was Professor Tang Shihong's new graduate student.

So now the conclusion is basically reached.

As a student of Qinghua University's Department of Mathematics, you must know Carmichael numbers and understand the problem of the intervals between infinite Carmichael numbers.

Normal undergraduate students are only concerned about whether they will fail the exam. Who would bother to study such difficult questions?

Even if you are a graduate student, you must be very talented.

As for the fact that Xu Yuan looks very young, it is not something strange in Qinghua.

After all, what is most lacking here is geniuses and prodigies.

So after class, as soon as Xu Yuan walked to the green space outside the building, he was blocked by several boys.

"Hello, senior." "You are Professor Tang's graduate student, right? We are freshmen."

"Can I give you my phone number so I can ask you questions later?"

As a freshman, it is definitely not a bad thing to be able to interact with graduate students, especially if you also want to take the postgraduate entrance examination in the future. In addition, seeing that Xu Yuan is so valued by Tang Shihong and has a handsome and friendly appearance, I want to try to take the initiative to say hello and see if we can get to know each other.

Xu Yuan was a little confused when he heard this, and wondered when he became Professor Tang's graduate student.

Although he did complete his postgraduate studies at Qinghua in his previous life, he was currently only a prospective freshman.

To be honest, we should call them seniors.

Of course, there is nothing wrong with getting to know seniors from the same department in advance, but the embarrassing thing is that he doesn't have a mobile phone at all.

I originally planned to go to the city to buy one after finishing the college entrance examination.

But there was nothing to be embarrassed about, so he just stated the reason openly.

“That I don’t have a cell phone.”

The people on the opposite side were visibly stunned when they heard this. They obviously didn't expect that a graduate student didn't even have a cell phone.

Although a mobile phone costs nearly a thousand yuan, the price is indeed not cheap.

But as a graduate student at Qinghua University, it is definitely more convenient to have a mobile phone to keep in touch with others.

It took about two seconds of stunned silence before someone reacted and quickly tried to make amends.

"Penguin is also OK."

Xu Yuan looked at them quietly without saying anything.

It is indeed the time when Penguin accounts are becoming popular in China, but he has never been to an Internet cafe so how could he have the opportunity to register an account.

At this point, the freshmen naturally would not be tactless. They responded with awkward looks and quickly left.

"That disturbs you, Senior."

Xu Yuan looked at them and didn't know what to say. After all, he didn't have a cell phone or Penguin account.

"It seems I need to take some time to go to the Internet cafe."

Considering this question, Xu Yuan murmured like a soliloquy.

Although Penguin has been basically replaced by WeChat in the past, for most people WeChat is still just work.

Penguin is life.

After stopping there to sigh for a moment, he prepared to return to the affiliated middle school.

However, I met a girl with fair skin after taking two steps. When I looked at her, I was first attracted by her short, round face. With the side ponytail behind her head, she looked sweet and cute.

"Senior..."

The other party had just said two words when Xu Yuan thought of the boys before and took the initiative to answer.

"Sorry I don't have a cell phone."

He thought the girl in front of him was also asking for contact information, although he was not sure whether she had also attended Professor Tang's class.

The girl was obviously stunned when she heard that, but then she reacted and started to explain.

"I'm a student in the journalism department. I'd like to interview you. Can you share with me what the differences are between being a graduate student and an undergraduate student?"

After hearing this, Xu Yuan realized that the other party was looking for him to complete the homework for the department.

Interviewing school classmates is the best way to improve your communication skills.

But he was in a hurry to return to the training team and had no time to be interviewed.

"You got the wrong person. I am not even a student of Qinghua."

He immediately explained this to the other party, and before he could react, he hurried past him and left.

The senior from the Journalism Department was left alone and confused. She had clearly heard several classmates from the Mathematics Department say that the other party was a graduate student. How come he was suddenly not even Qinghua's student?

(End of this chapter)