Scholar's Cultivation System Panel

Yao Leyi was about to sit down again, when she suddenly heard Xu Yun's words, her body stopped suddenly, and she turned her head with surprise in her eyes.

She knew that Xu Yun was studying advanced algebra during his military training, but that was basic knowledge at most.

Still far from solving the problem.

If you can memorize multiplication formulas, can you calculate addition, subtraction, multiplication and division?

not necessarily.

Besides, this is still a review textbook for the postgraduate entrance examination.

Thinking that Xu Yun might be out of kindness, he smiled and thanked him after sitting on the chair.

"Thank you, brother, for your kindness."

Then tactfully refused: "But no need, I'll just go back and find a senior to ask for advice." I was worried that I would ask Xu Yun for advice if I couldn't solve the problem, which would embarrass each other.

Xu Yun could more or less guess what Yao Leyi was thinking, so he didn't continue to insist on what he said just now.

He raised his hand to reveal the cover of the set of exercises in front of him, then changed a new entry point and said: "I am also doing exercises during this time, maybe it will be the type I have encountered before, if you really can't solve it, you can go to it again." It’s the same with asking seniors for advice.”

Yao Leyi examined Xu Yun's expression, and saw that he was very serious, not joking.

After a little hesitation, he still chose to agree.

"Oh well."

After finishing speaking and handing over the draft, he thought in his heart that if an embarrassing situation really happened, he would open his mouth to smooth things over.

Don't look at the monk's face to see the Buddha's face.

You can't let Xu Yun get off the stage in front of Chen Shihe.

Xu Yun took the draft from Yao Leyi's hand, and immediately carefully checked the copied questions.

"Assuming that the vector spaces a, b, and c are not coplanar, prove that any vector r in the space can be expressed as..."

It is a proof question of Tao vector correlation.

not difficult.

Relying on the spatial thinking improved by 25%, after reading the questions, the corresponding graphics were constructed in the mind, and the thinking of solving the questions became clear quickly.

After confirming that there was no problem in the process, he picked up the pen and followed the steps in the draft to calculate.

And explained it to Yao Leyi carefully.

"Sister."

"It's actually quite easy to find the right method for this question."

Yao Leyi didn't expect much from Xu Yun, so when she suddenly heard this sentence, she was a little stunned.

easy?

It's hard, okay?

But just as he was about to refute, he stopped when he heard Xu Yun talk about the idea of ​​solving the problem.

"Use the algebraic method to prove, first set these vectors and the coordinates of r."

"Column variable equation."

"Change the determinant and observe its geometric meaning."

...

Originally, she didn't quite understand this question, but after listening to Xu Yun's explanation and the calculation steps of the formula in the draft book, she quickly grasped the most important line, and she suddenly had a feeling of clearing the clouds and mists. See the carefree feeling of the blue sky.

It's just that after she came back to her senses soon, she had a very strange expression on her face.

Watching Xu Yun carefully, his eyes were full of curiosity.

I couldn't figure out why Xu Yun would solve the questions that I obviously didn't learn, and I was also surprised that I understood the questions so quickly after listening to Xu Yun's lecture.

Compared with Chen Shihe, her personality is more free and easy, and it is impossible to go to the dormitory with a few questions.

Seeing Xu Yun finished writing the last symbol, he immediately asked: "Your progress in professional courses should not be so fast, don't tell me that you learned this knowledge by yourself?"

"It's true that I taught myself." Xu Yun nodded generously.

And these words undoubtedly caused tons of harm to Yao Leyi, and she felt a little inexplicably wronged in her heart.

He raised his eyes and looked at Chen Shihe who was facing him and said, "Shihe, I suddenly don't want to take the postgraduate entrance examination."

Thinking that I have studied advanced mathematics for three years, and I have been reviewing and preparing for the postgraduate entrance examination in the past few months. The result is not as good as that of others who have studied by themselves for a few days. How poor is the talent in mathematics!

Fortunately, she didn't hesitate to apply for the Department of Mathematics.

Chen Shihe also heard the process of Xu Yun's lecture, and had to admit that there were indeed many merits in it.

It even made her a little enlightened.

But I am more happy that Xu Yun has such a strong mathematical talent.

"Xu Yun."

"I didn't expect you to be so gifted in mathematics."

"I have already mastered the content of mathematics professional courses not long after I started school."

"I'm sure you can go a long way in mathematics."

Xu Yun was naturally very happy to be praised by the perfect sister next door in his childhood.

Fortunately, Yao Leyi didn't come up with ordinary differential equations and complex variable functions, etc., which are the sophomore study questions.

Otherwise, he is also caught blind.

Therefore, I was a little humble when answering: "I only studied this year's courses."

Yao Leyi was already sad, but when she saw Chen Shihe and her siblings chatting, she felt even more aggrieved.

Immediately, he dragged his voice and shouted softly again.

"Shihe~"

Chen Shihe was clearly aware of his best friend's character, so he turned his head and said helplessly when he heard this long voice: "It's been so long since I've been studying, and I'm about to sign up formally. No matter what, I won't allow you to give up on our agreement halfway."

Yao Leyi was stabbed to the point all of a sudden, with as much aggrieved expression as she wanted on her face.

Seeing this, Chen Shihe couldn't help feeling a little soft-hearted, and after thinking about it, he decided to contribute his younger brother.

"Advanced mathematics is indeed difficult for us non-mathematics students, but since Xu Yun is very talented in this area, we can ask him for advice when we encounter problems."

Being reminded by Chen Shihe, Yao Leyi immediately thought of something.

Quickly put away his expression, looked at Xu Yun and asked curiously: "I forgot to ask you just now, why can I understand what you said, but others are listening to heaven?"

Of course, it is impossible for Xu Yun to tell the other party that this is because of his improved abstract thinking and spatial thinking ability. When facing problems, he can quickly find the key points and simplify other unimportant things, so it is naturally easier to explain.

Fortunately, he already had a set of rhetoric for questions like this, and he answered softly after organizing his language a little.

"It may be because I often lectured on topics with my classmates in high school, and I also worked as a tutor for a period of time during the summer vacation."

"Knowing how to speak can make it easier for the listeners to understand. It takes a long time to master this method."

"So that's how it is." Yao Leyi was thoughtful.

In the next second, she suddenly moved her body close to Xu Yun, and said with a pleading voice, "You speak so well, if Shihe and I encounter advanced math problems that we don't understand, can we ask you directly?"

It seemed that he was afraid that Xu Yun would disagree, so he deliberately brought Chen Shihe with him.

"If it's convenient for you, you can agree." At this time, Chen Shihe noticed Xu Yun's embarrassment, and whispered something next to him.

What Xu Yun was most afraid of was giving lectures to others, not to mention helping Chen Shihe and Yao Leyi to review for the postgraduate entrance examination, logically speaking, there was no reason to refuse.

The key point is that his current knowledge of mathematics is limited to the freshman stage, and the help he can give them to the postgraduate entrance examination party is still limited.

In this case, he had no choice but to tell the truth.

"The topic of the lecture is okay, but it can only be limited to the professional course content of the freshman stage."

He originally thought that Yao Leyi would say that she didn't care when she heard this, but who would have thought that this college lady would just talk hard.

"Then hurry up and learn the content of the sophomore stage."

"Anyway, you are so talented in mathematics, you can teach us after you finish your studies."

"It's still some time before the postgraduate entrance examination begins."

Xu Yun never expected that he would have another reason to study the sophomore course today.

But speaking of this, I have to agree temporarily.

In the following time, Yao Leyi took the initiative to add his friends, and pulled the three of them into the same group.

I plan to ask questions in the group if it is inconvenient in the future.

After answering the vector proof question for Yao Leyi, his task progress was finally down to single digits, and it took another ten minutes to finally make it all up.

Almost at the same time as he finished writing the last one, the familiar panel immediately appeared in front of his eyes.

"Congratulations to the host for completing the advanced task and obtaining the achievement of the master of brushing the questions. The task reward has been issued."

With the information of various attributes coming into view, you can see that the points column has returned to three digits again, and the special coolness appears near the temples, which lasted for a few seconds longer than last time before disappearing.

This marks that his spatial thinking ability has improved by 50%.

If he could only construct graphics in his mind before, now it is enough to directly construct a function model without the help of a computer.

And this speed will not be too slow.

He can even be sure that if he is allowed to overclock his brain to master the knowledge of mathematics courses now, the points consumed will definitely be much less than before.

Because his ability has been greatly improved, learning new things will be faster and easier.

Naturally, there is no need to consume a lot of points.

Perhaps because of the successful completion of the advanced task, Xu Yun was in a happy mood and didn't wait until the library was closed.

Before nine o'clock, I separated from Chen Shihe and the others, went to the administrator to borrow a few new textbooks, and bought some food on the way back to the dormitory.

It is also worth mentioning that, I don't know if it is because he has mastered the content of the mathematics professional course in the freshman stage, and he has not been able to generate tasks in the past few days no matter whether he is studying or doing problems.

All of a sudden, there was no pressure under him, but he seemed a little uncomfortable.

...

Time flies and it's Friday in the blink of an eye.

In the last class of spatial analytic geometry in the morning, Xu Yun sat in the last row, looking through the textbooks borrowed from the library.

The whole state is no different from when I was in the senior substitute class.

In fact, at first he still needed to listen carefully, but he didn't know what Tang Yanshan explained.

He soon becomes free.

After all, although Tang Yanshan teaches Gao Dai, his qualifications in the mathematics department are relatively old, and other lecturers always have to give some face.

At this moment, Xu Yun suddenly noticed that the screen of the mobile phone placed on the table lit up automatically, displaying a familiar note.

"Professor Zhou's phone call."

"Could it be that the thesis has been revised?"

Almost as soon as he saw the name, such a thought popped into his mind.

His mobile phone was on mute during class time, and it was not suitable to answer the phone at this time, so he had to hold back the excitement and excitement in his heart for the time being and sent a message to Zhou Zhi first.