Before he knew it, Chen Zhou had turned to the end of the first chapter of "A Concise Course of Complex Variable Functions".

“...... The concept of continuous and conductive on C above is extended to the extended complex plane......"

After reading the last paragraph, Chen Zhou remembered the names Riemann sphere and differential manifold.

It sounds quite lofty, and when you learn, it becomes even higher...

After taking the scratch paper, Chen Zhou sorted out the key points of the first chapter again according to the content of his own records.

Then, Chen Zhou set out to prepare for the first exercise that followed the first chapter.

At this time, Yang Yiyi touched him lightly.

Chen Zhou turned his head and looked at her suspiciously, thinking that she had encountered some problem.

As a result, I saw Yang Yiyi gently raise her hand and point.

Chen Zhou glanced in the direction Yang Yiyi pointed.

Two people, Professor Wu Xiping, who teaches mathematics, and Professor Zhang Zhongyuan, who teaches Gao Dai.

Chen Zhou recognized Professor Wu Xiping at first sight, and he wanted to say hello.

But when he saw Professor Zhang Zhongyuan next to him, his instinctive reaction was a little embarrassed, and he wanted to pretend that he didn't see it.

No matter what Chen Zhou thought, the two professors Wu and Zhang saw him and were walking towards him.

Professor Wu Xiping has a good impression of this student, with strong self-learning ability and good study habits.

He remembered that in the first class of mathematics, students from 3 departments, a total of nearly 100 people, Chen Zhou was the 12th from the bottom to hand in the answer.

By yesterday's math class, Chen Zhou was already the 12th in positive numbers to hand in the answers.

The progress is very fast, and it is obvious that he is the one who has adapted to the Department of Mathematics of Yan University.

And Professor Zhang Zhongyuan's impression of Chen Zhou is very ordinary, his high substitute class, Chen Zhou does not have any outstanding points.

Even once asked, Chen Zhou didn't know the problem.

The two professors did not come to Chen Zhou on purpose, because they had a common topic, they made an appointment to meet in the library seminar room.

When the two professors passed by, Chen Zhou still took the initiative to say hello and smiled at the two professors.

Wu Xiping also smiled at him and nodded lightly.

Zhang Zhongcheng just nodded.

After Chen Zhou said hello, he lowered his head and prepared to continue to do his own exercise one.

However, Chen Zhou found that Wu Xiping seemed to have stopped and stood behind him.

Without waiting for Chen Zhou to turn around, Wu Xiping patted him lightly and motioned for him to follow.

Chen Zhou got up, sorted out the information, said hello to Yang Yiyi, and followed Wu Xiping to a small seminar room.

Wu Xiping asked directly: "Chen Zhou, why are you looking at the complex variable function?"

Chen Zhou was slightly stunned, and then replied: "Looking at it, I saw this." ”

Wu Xiping didn't understand what Chen Zhou meant, and asked again: "What about your scores? If I'm not mistaken, complex variable functions are only taught in the second semester of sophomore year, right?"

Chen Zhou: "I've taught myself a few points in class." ”

Wu Xiping: "What do you mean?

Chen Zhou nodded slightly.

Wu Xiping looked at Chen Zhou in surprise, and he remembered that after the first class, in every subsequent class, this student seemed to be immersed in self-study except for looking up at the last question he wrote on the blackboard.

But this self-learning speed is inevitably too fast, right?!

Wu Xiping didn't speak for a while, not knowing what he was thinking.

Another professor in the room, Zhang Zhongyuan, said, "Chen Zhou, are you sure you have finished all three volumes of textbooks?"

Chen Zhou thought for a while and replied, "Because I have been studying by myself since the summer vacation, and then Professor Wu's class also encourages students to study on their own, so I studied all the three volumes in one go. ”

Zhang Zhongyuan asked again: "Then why did you start to look at complex functions, according to your curriculum, you have learned all the geometry you will learn in your freshman year? Also, I have learned all the high school substitute classes?"

"Ahem..."Chen Zhou coughed lightly a few times, and then said, "Professor Zhang, I'm all learning, I'm learning, it's just that your senior generation is more difficult, and I'm learning slower..."

"Is it difficult? Then I haven't seen you come to ask me?" Zhang Zhongyuan looked at Chen Zhou and said.

"Hey, Lao Zhang, Chen Zhou must have his own study plan, he is one of the few students I have seen who has good study habits. Chen Zhou thought that Wu Xiping was helping him speak, but Wu Xiping turned around and said, "Maybe Gao Dai is really not as interesting as my points, so he will put it in the back, hahaha." ”

Zhang Zhongyuan glared at Wu Xiping, who was smiling, but the latter laughed even louder.

These two professors have a good relationship, and they often joke with each other about their students' learning.

But it is often Zhang Zhongyuan who has the upper hand, because the number of classes is relatively more difficult than that of high substitute classes.

The number of points belongs to the need to come up with it yourself, and there are more proof questions, and many of the senior generations know the basic knowledge, and the later questions can be brought in.

In general, it's a little more flexible in counting.

Therefore, many students will complain about how difficult it is to count the points, and then throw themselves into the arms of the high generation.

But like Chen Zhou, who finished learning the number in one breath and went to learn complex variable functions, he was the first to put the senior generation who also belonged to the core basic course, and the students who didn't go to see it were still the first.

Wu Xiping finally stopped laughing, and then looked at Chen Zhou: "You said that you have finished studying all three volumes, then I will test you." ”

Chen Zhou asked, "Teacher, is there a reward?"

Wu Xiping was stunned for a moment, and then smiled: "Yes." Lao Zhang and I are working on a project, the application research of the interpenetration and fusion of advanced algebra and mathematical analysis, are you interested?"

When Zhang Zhongyuan heard this, he glanced at his old partner, but he didn't say anything to stop it.

Chen Zhou immediately replied: "Please ask the teacher to ask the question." ”

Wu Xiping: "Let's talk about the connection between several differential median value theorems. ”

Chen Zhou thought that he had misheard, and asked Wu Xiping again, indeed asking him to explain the connection between the differential median theorem.

I'm sorry, Professor Wu sent points, so I can only accept it.

Chen Zhou first started with the content and proof of each theorem of the differential median theorem, and then explained the relationship between each theorem in simple terms.

This is probably the content that Chen Zhou is most familiar with and has the deepest mastery.

After listening to Chen Zhou's answer, Wu Xiping's eyes showed appreciation, and this understanding had surpassed that of most students.

Wu Xiping: "Then let's talk about the Cauchy criterion." ”

The Cauchy criterion is the content of the second book of the number of points, which appears twice, once for the content of several series, and once for the content of the sequence of functions.

Chen Zhou organized the language for a while, and then said: "The Cauchy criterion is mainly used to judge the convergence of series..."

After Chen Zhou finished speaking, Wu Xiping nodded and said, "It's okay, you leave me the mailbox, and I'll send you the subject materials when I get back, you can take a look first." ”

Chen Zhou asked, "Professor Wu, there are still a few points of the third volume that you haven't asked?"

Wu Xiping: "No need, you can quickly leave an email address and read the book by yourself." ”

Chen Zhou glanced at Wu Xiping, found a sticky note and wrote down his mailbox, and prepared to leave.

Regarding this, Zhang Zhongyuan said loudly: "I went back and read the course of the high algebra first, and there are also abstract algebras." ”

"Uh... Okay..."Chen Zhou replied repeatedly, and then left the seminar room.

In the seminar room, Wu Xiping asked, "Lao Zhang, what do you think?"

Zhang Zhongyuan gave an evaluation: "I have learned very solidly and it is worth cultivating." ”

Wu Xiping smiled and quipped: "Don't be angry that he didn't learn your high generation?"

Zhang Zhongyuan glanced at him and didn't speak.

Wu Xiping said: "His number of points should be learned after the start of school." ”