Shen Jing stood at the door of the library, not knowing what he was thinking.

Even when Chen Zhou approached, he didn't notice it.

Chen Zhou patted him lightly: "What are you thinking?

Shen Jing came back to his senses and turned his head to look at Chen Zhou: "Uh... Nothing..."

Yang Yiyi also took the initiative to say hello: "Hello senior." ”

Only then did Shen Jing notice the girl beside Chen Zhou, and he sighed in his heart, he now fully realized what it was like to have a few children's children around him...

Although he thought so in his heart, Shen Jing still replied politely: "Senior sister, hello, hello..."

On the way back to the dormitory, Yang Yiyi threw out some questions about her academic scores.

said that it was a question, but in fact, it was Yang Yiyi's own curiosity, and most of the questions she asked were about this theorem and the ins and outs of that proof.

Chen Zhou patiently helped her answer one by one.

Regarding Yang Yiyi's questions, some Chen Zhou is not very sure, and there happens to be an excellent senior in the Department of Mathematics next to him, so he can ask for advice.

It's just that Shen Jing mostly doesn't understand the fish that Chen Zhou can't answer.

Shen Jing listened to it on the side, and when he saw Yang Yiyi looking at Chen Zhou's eyes, his taste was even more sour...

Shen Jing just wants to say, such a girlfriend, I also want to...

Finally managed to get to the dormitory area, Shen Jing hurriedly said hello and walked quickly towards his dormitory.

After Chen Zhou sent Yang Yiyi downstairs to the dormitory, he also returned to the dormitory.

in the dormitory.

Li Li and the three of them were reading a book at their desks.

Seeing Chen Zhou coming back, Zhao Qiqi immediately greeted him and hurriedly asked, "Brother, what's wrong?"

Chen Zhou looked at him and said, "I'll help you ask, and if you have time to have a friendship together, you can grasp it yourself when the time comes." ”

"Nice!" Zhao Qiqi hurriedly helped Chen Zhou take off his backpack, and then let Chen Zhou sit on a chair to rest, and then pinch his shoulders or something.

Then he said to Li Li and Zhu Mingli: "What, haven't you heard? Dormitory friendship, this is not for me alone, everyone has a share! Lao Zhu, hurry up and take out the snacks to entertain. ”

Hearing this, Li Li took Chen Zhou's cup and poured a glass of water.

Zhu Mingli took out a large bag of delicious food that he treasured.

"You guys are too polite..."Chen Zhou ate a piece of beef with some embarrassment and drank a sip of water.

"You're welcome, you're welcome. Then, Brother Chen, when are we going to connect?" Zhao Qiqi asked.

The three of them all looked at Chen Zhou expectantly.

Chen Zhou thought for a while and said, "The mid-term exam season is about to expire, how about waiting for the exam to be over?"

Zhao Qiqi: "Yes, yes." ”

Zhu Mingli: "It's a good time, I did well in the exam, and everyone had a good time." If you don't do well in the exam, everyone is happy. Chen Zhou will arrange. ”

Li Li: "So, let's prepare for the midterm exam first." ”

Chen Zhou: "That's right. ”

.....

When the dormitory finally quieted down, Chen Zhou borrowed Li Li's computer and began to download the mission information sent by Wu Xiping.

After the download was completed, Chen Zhou unzipped the file and looked at the information.

One of the two questions he received was based on his own example, and Wu Xiping gave him a zero-point question.

It is a problem of solving purely mathematical analysis using advanced algebraic methods.

Correspondingly, another problem is to solve the problem of pure higher algebra by means of mathematical analysis.

It can be said that Wu Xiping has assigned the task of this project very reasonably.

If you look at each person's task individually, it can be carried out as a small topic independently.

This is also Wu Xiping's deliberate cultivation of Chen Zhou and Shen Jing's research ability.

Chen Zhou copied the two questions on scratch paper and prepared to study them.

The questions in both questions are simple and have a short and concise aesthetic.

But it's not easy to solve.

After all, it's one thing to say it, but it's another thing to actually do it and study it.

Chen Zhou turned his pen and thought about the corresponding solution.

After thinking for a while, Chen Zhou picked up his pen and began to solve this problem.

"If f(x)≠0, then the conclusion is true......."

“...... It can be proven that at least N+1 x1, x2, x3 ,... exist , xn+1∈(a,b), and x1

After reading it, Chen Zhou thought about it for a while, and he already had an idea.

The reason why this problem is typical is that it requires the use of typical mathematical analysis methods, generalized integrals ∫+∞e^(-ax)dx=1/a(a≠0).

"First of all, it is a real symmetric matrix, arbitrary x...... , you can introduce points for calculation. ”

The idea is constant, and the pen is like a god.

Chen Zhou's hand holding the pen kept swimming, writing his own solution process on scratch paper.

“...... Because A1,... ,ans are different from each other, if x1e^(-a1t)+...+xne^(-ant)=0, there must be x1=...=xn=0, so they contradict each other. ”

Writing this, the answer basically comes out.

Chen Zhou's strange feeling came out again.

Chen Zhou didn't care about this feeling for a while, and solved the whole problem according to the idea.

“..... Using the above conclusions, it can be proved that the matrix... It is definite. ”

The problem of the question itself was solved, but Chen Zhou's strange feeling did not find the answer.

Chen Zhou glanced at the time, only half an hour had passed, and it was still early.

He set aside the scratch paper, intending to do both questions again.

The method of mathematical analysis is used for the number score problem, and the method of advanced algebra is used for the advanced algebra problem.

Chen Zhou felt that he could find a connection in the question, and the question would tell him the answer.