Starting from a top student and marching towards the sea of ​​stars

Chapter 8 How can playing with mobile phones be interesting to study?
Of course, in front of Yuan Shuai, Ning Chen would not reveal the secret of the system in his mind.

"Actually, I didn't deliberately refrain from playing with my mobile phone, because for me, studying is much more interesting than playing with a mobile phone. Marshal Yuan, you have to learn to feel the fun of learning, instead of deliberately forcing yourself to study. Remember , interest is always the best teacher..."

Listening to Ning Chen's words, Marshal Yuan couldn't help but nod, as if he had found his own motto in life.

"Ning Chen, what you said is really great. I always feel that you have become a lot more mature than when you first started school, as if you are not in the same age group as us."

Ning Chen was taken aback when he heard the words. After all, there was a 30-year-old soul living in his body.

"In fact, growth is a momentary thing. When you want to understand those principles, you will naturally become mature."

Ning Chen quickly made a few casual remarks and changed the topic.

The former commander didn't think much about it, he just felt that what Ning Chen said was very reasonable, and secretly set a goal to continue to learn from Ning Chen.

……

Time passed day by day, and Ning Chen continued his "monotonous" study life every day.

After the improvement in learning efficiency, Ning Chen can increase at least 1 point of experience in mathematics every day.

On the other hand, Ning Chen's energy points were also slowly increasing.

Although you can only get a little bit of energy every day, it is also a good income if you accumulate it.

Whenever the energy points meet the conditions, Ning Chen will use the energy points to improve his mental index, which makes Ning Chen's learning path enter a virtuous circle.

At noon of this day, Ning Chen and others were eating in the cafeteria of the first dormitory when they ran into He Sheng.

"Hello teacher!"

He Sheng looked up and recognized the four of Ning Chen as his students.

Of course, except for Ning Chen, He Sheng could not call anyone else's name.

"Hello!"

After greeting each other, Ning Chen and the others were about to leave, but He Sheng continued:
"Ning Chen, have you started reading the books I recommended to you recently?"

He Sheng also just asked tentatively. Although Ning Chen is very prominent in the three classes of materials, he probably won't have much time to learn other knowledge.

Ning Chen was thinking about how to answer when Chen Tianpeng said first:
"We went to the library with Ning Chen that day. Ning Chen borrowed more than ten books on mathematics at once, and now Ning Chen has almost learned it."

What Chen Tianpeng said was true, because Ning Chen had just returned the books he borrowed with Chen Tianpeng's library card a few days ago, and only a few books he had borrowed had not been finished.

He Sheng was also taken aback when he heard Chen Tianpeng's words.

"Really, you learn so fast? This semester I am also teaching mathematical analysis classes for mathematics majors. Ning Chen, if you have time, you can come over and listen. It's okay."

It's not that He Sheng doesn't believe in Ning Chen's learning effect, it's just that He Sheng feels that he will inevitably encounter some problems when studying these courses by himself, and this is also He Sheng's kindness.

"Okay, I will definitely go there when I have time."

Ning Chen also wanted to get a feel for what the math class was like, so she agreed.

"Do you have time for the first class this afternoon?"

Ning Chen glanced at the class schedule and made sure that he had time for the first session in the afternoon.

"If you have time, which classroom do you teach, teacher?"

"Room 304, Teaching Building No. [-], then we'll see you in the afternoon."

This was the first time that He Sheng took the initiative to invite a student to observe his class. He Sheng himself was not sure why he took such initiative.Perhaps this is the feeling that a good teacher feels when he meets a student he likes.

After returning to the dormitory and taking a brief nap, Ning Chen came to No. 304 Teaching Building [-] early and sat in the last row of seats.

As an auditor, Ning Chen was naturally embarrassed to sit in the front seat.

Since Ning Chen had already returned the book "Mathematical Analysis" after studying it on his own, Ning Chen didn't even bring the textbook for this class.

But Ning Chen felt that it didn't matter, because Ning Chen had already gone through all the knowledge points in the book and every topic, and there would be no omissions.

After 01:30 in the afternoon, students came to the classroom one after another.

Every student who came in was stunned when they saw Ning Chen, because it was the first time for them to see Ning Chen's face.

"Which class is this person from? Why haven't I seen it before?"

"Maybe I'm here for self-study. I didn't know there was a class in this classroom. I should be leaving soon."

"It may also be the students who failed the course last year and retake it. I heard that the failure rate of this course is quite high."

Ning Chen didn't pay attention to other people's comments, and studied on her own.

At two o'clock in the afternoon, He Sheng entered the classroom on time.

Looking around under the podium, He Sheng saw Ning Chen sitting in the last row of the classroom.

He Sheng was very happy that Ning Chen could attend his class as scheduled.

Of course, He Sheng didn't really expect that Ning Chen could reach the level of a mathematics major.

As long as Ning Chen can understand his class, he is already very good.

In the previous one-hour class, Ning Chen followed He Sheng's train of thought very easily, and even spared some energy to do other topics.

During recess, He Sheng asked Ning Chen:
"How is it? It's the first time to observe the mathematical analysis. Can you keep up?"

Ning Chenxin said that He Sheng's lecture speed could be faster, but Ning Chen still said:

"Well, I can still keep up."

"That's good. If you can adapt to the mathematics major courses, you can really consider switching to the mathematics major in the future."

"Okay, I will seriously consider it." Ning Chen said.

In the second half of the class, He Sheng began to explain some expanded content.

Some of the questions He Sheng asked were not found in books, which made Ning Chen also interested and picked up the pen to start working on it.

For every question, Ning Chen was able to solve it easily. Of course, the students majoring in mathematics also performed very well, actively answering the questions raised by He Sheng.

"It seems that these questions are still difficult for you. In the end, I will come up with a more difficult question. This is a postgraduate entrance examination question for mathematics analysis in a certain university. Students who have finished it can raise their hands and tell me."

When they heard that this was a question for the postgraduate entrance examination, the students present frowned. Such a difficult question was still a bit difficult for freshman students.

Sure enough, when He Sheng projected the question on the big screen, everyone had painful expressions on their faces.

"Suppose f(x)=sin(a1x)+ sin(a2x)+ sin(a3x), a1, a2, a3>0. Proof: There is a sequence {tn} such that lim(n→∞)tn=+∞ and lim(n→∞)f(x=tn)=f(x) holds consistently for x∈R.”

(End of this chapter)