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

Chapter 2 Teacher, you really have a way!

After all, Ning Chen has just gone through a few hours of intense study, and the energy consumption is undoubtedly very huge.

This made Ning Chen fall into a deep sleep very quickly.

……

As time passed day by day, Ning Chen gradually mastered the way to enter the state of flow.

As long as she gets rid of all external interference and concentrates on what she is doing, Ning Chen will naturally enter a state of flow.

After a certain period of training, even if the surrounding environment is not so quiet, it will not affect Ning Chen's study.

Of course, the flow state cannot be entered indefinitely. Once Ning Chen's energy drops seriously, he will not be able to maintain his full concentration.

Therefore, Ning Chen must combine work and rest so that he can enter the state of flow more.

Calculated in this way, although Ning Chen's daily study time is not too exaggerated, he can always maintain a high learning efficiency, and the learning effect is much better than reading at night.

Using a week's spare time, Ning Chen has completely mastered all the knowledge points of "Advanced Mathematics", and has completed most of the questions in the book.

Although this speed is not particularly fast, for Ning Chen, it is already very efficient.

In this day's advanced mathematics class, the advanced mathematics teacher He Sheng was explaining the lesson about L'Hopital's law.

"When we use L'Hopital's rule, we should simplify the function as much as possible, pay attention to the use of equivalent infinitesimals, and separate out the factors with non-zero limits."

"Using the equivalent infinitesimal substitution, the complex function multiplication factor is replaced by the equivalent power function."

"If the limit lim f'(x)/g'(x) does not exist, then L'Hopital's law fails..."

Ning Chen had already mastered this knowledge very well, so he did not attend the lectures, but just studied the questions on his own.

It was difficult for Ning Chen to enter the flow state while listening to the lecture, let alone the content that Ning Chen had already studied by himself. Self-study was naturally a better choice for Ning Chen.

During the break in the middle of the big class, a few students sneaked out of the classroom with their schoolbags, because the teacher had already called the roll in the first class, which meant that it was very safe to skip the next class.

But what they don't know is that this little trick can't hide from the teacher's eyes at all.

"There are 10 minutes left. I won't give lectures. Let's take a small quiz. This test will be included in the usual grades. Students who have finished the answers can leave directly after handing in the papers, without waiting until the end of get out of class."

As he spoke, He Sheng closed the classroom door, found a few questions on the computer, and projected them on the big screen.

Hearing He Sheng's words, the students in the classroom couldn't help sighing.

"Fortunately, I didn't skip class this time, otherwise my usual score would have been reduced by five points."

"It's too late to inform those students who skipped classes now. Teacher He has already closed the door. Obviously, he doesn't want the students who skipped classes to come back."

"Moreover, one person is handed in a paper. In this case, it is impossible to answer for others. Teacher He really has a way."

After discussing in a low voice, everyone turned their attention to the big screen.

After all, the quiz is different from a simple roll call, and only the correct answer can get the score.

Hearing that the quiz was about to take place, Ning Chen also stopped brushing the questions and raised his head to look at the big screen.

Ning Chen remembered that in his last life, he had been caught in this trap because of skipping classes, and his usual points were directly deducted by five points.

At that time, Ning Chen also complained about the "insidiousness" of the high mathematics teacher, but after all, this is the power exercised by university teachers under their own duties, and this is understandable.Glancing at the questions of the quiz, Ning Chen didn't feel any pressure.

These are the types of questions that Ning Chen has already done, but the questions have been slightly changed. Ning Chen can easily solve these questions.

After tearing off a piece of paper, Ning Chen answered quickly.

After projecting the topic on the big screen, He Sheng was not idle, walking back and forth in the classroom aisle.

The invigilator will definitely not be very strict for this kind of small test-level exam, but He Sheng doesn't want everyone to copy each other casually.

These questions were all written by He Sheng himself, and all of them were calculation questions and solution questions, which also greatly increased the difficulty for students to plagiarize each other.

The overall difficulty of these questions is not very high, but because this small test was a bit sudden, many students were not prepared, either secretly flipping through the textbooks, or squinting at the classmates next to them.

Ning Chen was sullen, and answered the questions without any hesitation, without any pause at all.

"The first problem can be solved by first dividing it into 0/0 indeterminate forms, and then using equivalent infinitesimals and L'Hopital's rule."

"For the second question, first perform triangular transformation to eliminate sinx-sinα, and then use L'Hopital's rule."

"The third question is slightly changed, it is 0·∞ type, but as long as it is transformed a little..."

Chen Tianpeng, who was sitting next to Ning Chen, couldn't help being amazed as he watched Ning Chen quickly answer the questions on the big screen.

"As expected of a top student who went to the library right after entering college, he's different from a scumbag like us."

When Ning Chen had finished three questions, Chen Tianpeng had just found the idea for the first question through the example questions in the textbook, but he had not yet started writing.

Fortunately, there was such a big boss sitting next to him. Chen Tianpeng simply gave up answering the questions by himself and directly copied Ning Chen's answer.

But after all, He Sheng has been patrolling back and forth, and Chen Tianpeng can't copy too obviously, so he can only minimize his movements.

In less than 10 minutes, Ning Chen finished all the questions.

After writing his name and student number on the paper, Ning Chen picked up the paper and schoolbag and prepared to hand in the paper.

After all, the teacher has already said that class can be dismissed early after handing in the test papers. Ning Chen doesn't want to waste time in the classroom, and has to go to the library to do assignments early.

Chen Tianpeng did not expect that Ning Chen would hand in the paper so quickly. At this time, it was too late to call Ning Chen back, and he couldn't help but regret that he had not copied more just now.

And when someone got up to hand in the paper, the students in the classroom also had a surprised expression.

"Did you finish the answer so quickly? I haven't even written a third of it yet!"

"It's only been 10 minutes, even if you copy the answer, it won't be so fast, right?"

"You should probably just skip the questions you don't know how to answer, but you're handing in the paper in such a hurry. Don't you usually want to do it?"

He Sheng was a little surprised to see someone handing in the test paper so early.

Although these questions are not too difficult, the answering speed is indeed too fast for a freshman who has just finished a new course.

"Aren't you going to check again?" He Sheng asked.

(End of this chapter)