God of black technology

Liu Yang got the lowest score this time, obviously not in a good mood.But the other students couldn't be in a good mood either.After all, the gap between them and Wang Yun seemed to be getting bigger and bigger.It seemed that no matter how hard they chased, they couldn't keep up with Wang Yun's pace, and instead the gap would be widened.

Thinking that Wang Yun's grades are already so superb, he even stayed up all night reading.They actually felt ashamed. Although the cloud god was not there, the cloud god was still the shining, suddenly dark horse cloud god.

Before that, if someone told this group of students in the competition, there would be a dark horse in this mathematics competition.Even Yiqijuechen, they didn't think about this possibility at the first time, but laughed at others.However—in fact, this impossible thing actually happened.

And it's so real it makes them want to cry.

Cloud God, please, let me wait for mortals... Your grades are already so good, so don't work so hard, okay?By doing so, it seems that I, who was a student from school, suddenly became a scumbag.

The gap between the god of learning and the god of learning is sometimes even greater than the gap between the god of learning and the scum of learning.

Of all the people present, who in his own school is not honored by other students as a god of learning?Which one is not this god or that god, but in front of Wang Yun, they seem to be a bunch of scum.

The teacher didn't pay attention to the mood of these students, but continued, "After you get the papers, you should know where your questions are wrong? Let me briefly summarize, the place where you made the most mistakes is—— When he said this, the teacher took the chalk on the podium, turned around and wrote two big characters on the blackboard.

【Operation】

"This is where you make the most mistakes—calculations. Because of calculation errors, your scores are not too high. For example, Yuan Chengde had a chance to get 130 points, but because of calculation problems, he lost 15 points for no reason. Don’t you think it’s a pity?” The teacher looked at Yuan Chengde, and at this time Yuan Chengde had already browsed his own test paper, combined with Wang Yun’s test paper he saw last night.

He nodded slightly, it was indeed a pity.Originally, there were several points that should not be deducted, but the result was still deducted.

"As for Liu Yang." The teacher turned his gaze to Liu Yang, who almost buried his head under the table, and said, "Your score could have been the same as that of Duan Hongming and the others, but you made too many wrong steps in calculation. Especially You only scored more than 20 points for the last three questions, and the final calculation result of the fifth question above is also a careless miscalculation. What do you think?"

"..." Liu Yang was in a bad mood, he never thought that his situation was so bad.

"Wang Qiuyang, no, there's no need to laugh. Look at your paper, the eighth question is already correct so much, why don't you continue to write it down? Instead, recalculate? What are you gloating about? You can still laugh when you read your paper?"

"..."

The whole classroom was silent, no one spoke, and no one dared to speak.After all, it seemed that the teacher had lost his temper.

"Okay, let's talk about the eighth question first..."

…………

From ten o'clock to twelve o'clock, the teacher focused on the next three questions, and then left the classroom after leaving a sentence that students who are still confused can go to the office of the Mathematical Academy to find him.

After seeing the teacher leaving, everyone said in relief, "I'm going, isn't this teacher too strict?"

"I heard that he was originally a teacher at the School of Mathematics of Yucheng University, and a doctoral student. Uh, he seems to be Professor Wan's disciple."

"Is it so cruel?"

"Otherwise what do you think?"

"Forget it, let's have dinner, there is Professor Wan's differential class in the afternoon."

"By the way, what did you talk about yesterday?"

"It's one-dimensional differentiation. I guess it might not be so simple today, ah, my God, the training team is simply too devilish."

"I don't know if you have a feeling?"

"What do you feel?"

"Although Yunshen is not here, he is still the pretending Yunshen."

emmmmm... need you say more?Does Yunshen still need to divide the location for pretending?No need at all, okay?Anytime, anywhere, a powerful tool for walking freely - Yunshen.

After lunch, Yuan Chengde and Wang Qiuyang returned to the dormitory, while the rest of the students continued to study papers in the classroom.Pushing open the door, Wang Yun seemed to be fast asleep.Yuan Chengde put the lunch box on the table, scratched his head and looked at Wang Qiuyang and said, "What should we do? How can we wake him up?"

"I don't know." Wang Qiuyang shook his head. He and Wang Yun have a good relationship.But they didn't sleep together very much. As for calling Wang Yun to get up, he really didn't know how to call him.

Opening his eyes in a daze, Wang Yun glanced at them and said, "Why get up?"

"I'm going, are you awake?" The two of them were worrying, but Wang Yun woke up by himself. It was just right for him to get up and eat, and then go to class.This afternoon is Professor Wan's class, and we must not continue to skip classes.

"Yeah." Wang Yun rubbed his eyes, "Just woke up, you guys are back? Finished the morning class? What did the teacher say?"

After several questions in a row, Wang Qiuyang didn't come to his senses at all.His mind was empty, but fortunately Yuan Chengde replied, "I just explained the method of the paper, I think it is similar to your method of paper. You don't have to worry, the teacher didn't say anything to you. However, it is best to take it tomorrow. Go to class in basic geometry, don't go to bed too late tonight."

Wang Qiuyang said in a timely manner, "Hurry up and eat, the food will be cold before the weather gets warmer."

"Yeah." After standing up, getting dressed and washing, Wang Yun came to the classroom with the two of them refreshed after eating.Not long after sitting down, Professor Wan stood outside the door and waved to Wang Yun.

Wang Yun knew it well, it must be because of the problem of not going to class this morning, Professor Wan came to talk to him.

Walking out of the classroom, Professor Wan said kindly, "I heard that you didn't sleep until this morning after reading?"

"En." Wang Yun nodded, admitting the matter.

"I know you are extremely thirsty for knowledge, but this is not advisable." Professor Wan shook his head, "Your body may be able to bear it now, but in the long run, your body will be worn down. Think about it, After your body is worn down, can you continue to read books?"

"No."

"That's right, so you must not read books all night all night." Speaking of this, Professor Wan looked at Wang Yun's thick hair and said, "Otherwise, it's a pity for this beautiful hair!"

Wang Yun slipped and almost fell to the ground, what the hell is this?What's with the hair?

Don't worry, I won't lose my hair no matter what.

Back in the classroom, Yuan Chengde asked curiously, "What did Professor Wan ask you for? Did he come here to criticize you because of today's incident?"

Classes don't start until three o'clock in the afternoon, and there is also evening self-study in the evening.Almost everyone in their training team is reviewing against the clock.After all, everyone wants to achieve a good result in the national competition.At least - don't let yourself regret it.The School of Mathematics was still deserted, and Professor Wan walked to the podium.

"Yesterday, I explained the one-dimensional differential to all the students. For those who didn't come to class yesterday, if there is any question that we don't understand, we will discuss it after we come down." After tidying up the chalk box, Professor Wan said, "Next, What I’m going to explain to you is diversity.”

Professor Wan took a chalk and wrote down the words [multivariate] on the blackboard——

[When there are multiple independent variables, the definition of multivariate differential can be obtained.Unary differential is also called ordinary differential. 】

【Advanced type】

[When the independent variable is a multivariate variable, the concept of derivative is no longer applicable (although the partial derivative to a certain component can be defined), but there is still the concept of differentiation. 】

"Today we will learn these two kinds of differential." Professor Wan put down the chalk in his hand, looked at the students sitting below and said, "You all brought the book of calculus, right?"

"Bring it."

"That's good, then I will start to explain the multi-type and high-order type."

Professor Wan said, and suddenly picked up the chalk and wrote on the blackboard.The students below looked at Professor Wan in bewilderment, trying to keep up with Professor Wan's rhythm.

However, in fact, maybe it was Professor Wan who spoke too quickly, or maybe it was Professor Wan's explanation that made them confused.In short - more than half of the students are already in a state of confusion.The only one who could keep up with the rhythm, besides Wang Yun, was Yuan Chengde.

When Professor Wan looked down again, he knew that more than half of the students didn't seem to understand.

Pausing, he looked at the other students and said, "Am I talking too fast?"

Neither did the students nod, nor did they shake their heads.Anyway, they didn't listen to the knowledge Professor Wan explained.

"That's all right, I'll speak slowly." Professor Wan smiled and said encouragingly, "You are already great, I remember that students in some provinces, before the national competition, even the concept of differential It's not very clear."

"Okay, let's talk about the definition of high-level type."

…………

After a three-hour class, most of the students were in a daze.Only Wang Yun and Yuan Chengde looked relaxed. Before leaving, Professor Wan walked up to Wang Yun and said, "Anything new about yesterday's prime number?"

"Not yet." Wang Yun is very honest. After all, it is a mathematical conjecture, and it is strange that he can find anything new.

"You are teaching yourself analytic number theory. I think you can study it in depth. Of course, if you really can't get it right, you don't have to study it. Just treat it as a hobby. I heard that you don't know much about physics. Are you already learning dynamics by yourself?" Professor Wan was very curious. As a high school student, and still a freshman, where did he get so much energy? While he is full of talent in mathematics, he also has a lot of talent in physics. talent.

Dynamics, even some subjects that students in the physics department of some universities have a headache, Wang Yun is actually studying by himself.This has to make Professor Wan sigh with emotion, there are really people who are as smart as a monster.Among this group of students, the most conspicuous and also the most evil one.

"Eh..." Wang Yun was rather embarrassed. After all, Professor Wan is a professor in the School of Mathematics, but now he is talking about dynamics.Of course, it’s not that Wang Yun looks down on Professor Wan. I believe that Professor Wan may know more about dynamics than him. After all, mathematics and science are not separate.There are quite a few students who transfer to physics after leaving the School of Mathematics.

What made him embarrassed was that even Professor Wan already knew about this matter.

"Don't be embarrassed." Professor Wan patted Wang Yun on the shoulder, "If your mathematics is good, I can introduce you to a dynamics expert from Yucheng University."

"Huh?" Wang Yun was stunned for a moment, never expecting such a good thing to happen.He said dully, "This is not very good."

Doesn't Professor Wan understand the students' thoughts? Especially for students like Wang Yun, he can tell at a glance that Wang Yun is probably really moved.Professor Wan also knows that no matter how evil a student is, learning dynamics alone is always a bit confusing. If there is no teacher to point it out, there is a high probability that he will fall into a misunderstanding.

"But it's a pity that the expert didn't come to the school because it was still on vacation." Professor Wan smiled, and then added, "Don't get too excited, if you can pass the test in these fifteen days, I will send you You refer to the expert who has been involved in the design of rocket power."

"Aerodynamics?" Wang Yun's eyes were shining brightly. Professor Wan knew at a glance that this guy must have started to study aerodynamics because he was interested in aerodynamics.

There are many branches of dynamics, such as fluid mechanics and so on.Aerodynamics is an important branch of fluid mechanics.To study the force characteristics of aircraft or other objects in relative motion with air or other gases, the flow laws of gases and the accompanying physical and chemical changes.It is a discipline that has grown up with the development of aviation industry and jet propulsion technology on the basis of fluid mechanics.

That is to say, even after watching dynamics, Wang Yun still needs to study fluid mechanics in depth, and finally aerodynamics.Of course, there are many branches of fluid mechanics, such as hydrodynamics, seepage mechanics, multiphase fluid mechanics and so on.

It's just that aerodynamics is the most active and fruitful field of fluid mechanics.

"That's right, that professor studies aerodynamics." Professor Wan patted Wang Yun's shoulder, "How about it, young man, do you have any ideas?"

"Ah?" Wang Yun was stunned, "What do you think?"

"In these fifteen days, can you complete the task I taught you?"

"Guaranteed to be able to complete." For the sake of aerodynamics, he has to complete the task assigned to him by Professor Wan even if he explodes 24 hours a day.

"Very good." Professor Wan laughed, waved his hand and said, "Hurry up and go to dinner, there will be evening self-study in the evening. You and Yuan Chengde are progressing much faster than other students in the training team. I am going to start again. Arrange a targeted training method for you."

"Professor, don't worry, Yuan Chengde and I will definitely not let you down."

"I hope so." After Professor Wan finished speaking with Wang Yun, he turned and walked towards the office of the number institute.The other students gathered around and said with flattering smiles, "God Yun and God Yuan are really cowhide."

"Okay, okay, let's go to eat quickly." Wang Yun couldn't stand the flattering smiles of this group of people, making him very disgusted.After eating and returning, everyone started to review.

Yuan Chengde whispered to Wang Yun, "Wang Yun, tell me, what kind of targeted plan will Professor Wan make for us?"

Wang Yun shook his head, "How do I know this? I'm not Professor Wan, but looking at Professor Wan's appearance, I feel that this training camp may not be as easy as our special training at school." After Wang Yun finished speaking, he thought After thinking about it, "By the way, you have almost finished your elementary number theory, right? Have you thoroughly understood it?"

Yuan Chengde looked at Wang Yun in bewilderment, and still nodded, "That's right, I have almost mastered the entire elementary number theory. Why, you suddenly asked me this matter?"

Rubbing his eyebrows, Wang Yun sighed and said, "According to our situation, I feel that it is very likely that Professor Wan will give us the topics of elementary number theory and analytic number theory. Of course, don't worry, analytic number theory will definitely be for me. I did it. Professor Wan is also an old professor at the Mathematics Department of Yucheng University, and I think the questions he proposed must be frantically probing at the edge of our knowledge blind zone."

"Hearing what you said..." Yuan Chengde shook his body, "I actually started to panic."

"Don't panic!" Wang Yun said with a smile, "Although this topic will definitely not be easy, it should be within the scope of our ability to do well. This will also lay a solid foundation for future IMO events. Think about it, In the past few years, the IMO papers have dealt a dimensionality reduction blow to the players from various countries in the world. Isn’t it because we have touched the blind spots of knowledge? Moreover, our knowledge is enough to cope with the IMO competitions. The most important thing is to be able to pass Bend."

Hearing Wang Yun's words, Yuan Chengde's mood improved a lot, he nodded in agreement and asked, "I feel more at ease when you say that."

Wang Yun didn't know whether to laugh or cry, "I don't know how to do calculations, and I'm not a fairy, I'm just talking about it. How to do it depends on Teacher Wan."

"Of course I know this, but Wang Yun, I don't think there is anything wrong with what you said. The papers Professor Wan gave us won't let us fail a single question. How embarrassing that would be."

"It's not impossible. What if Professor Wan just wants to educate us that there are people beyond us, and there is a sky beyond the sky?"

"I'm going, I'm getting nervous again."

…………

After a while, Professor Wan walked into the classroom and said, "Tonight's evening self-study is from 10:30 to [-]:[-], three and a half hours. I believe you can adapt to this intensity, right?"

All the students in the training team did not speak, because they knew that it would not work at all if they spoke by themselves, it would be better not to speak.

"Let's see, it's almost eight o'clock now, so let's start with the advanced calculus, and then we have to learn other things. Let's try to finish the whole calculus within 20 days, and finally In the remaining ten days, I will give an explanation in Ratong. You have more than ten days after you go back, so remember to review. I hope that you can get good grades in the exam, and even be admitted to a key university after the exam .” When Professor Wan said this, he smiled.

"I'm promoting Yucheng University at an inappropriate time."

"Although Yucheng University is not comparable to C9 universities, it is still a member of the E9 University Alliance. It is also selected as a university in the national "2011 Plan" and "111 Plan". Although the School of Mathematics and Physics are a bit embarrassing, they are still key universities. "Professor Wan said with a smile, "All of you are talents selected by Yucheng. Is it true that none of you want to stay in Yucheng University to build the mathematical and physical environment of Yucheng?"

The scene was a bit embarrassing for a while. The best major in Yucheng University was architectural engineering, and it was really embarrassing for this group of students who yearned for mathematics and physics to stay in Yucheng University.

Professor Wan coughed lightly, shook his head and said, "Anyway, the higher-ups asked me to promote Yucheng University to you, and I have already publicized it. Another thing, if any of you choose Yucheng University, then the mathematics-related You can choose any major. After the summer, you will be able to report to Yucheng University."

Students, you look at me and I look at you, but you don't know how to speak.

It is not that there are no students who want to enter Yucheng University. After all, the preferential treatment of choosing a major at will is indeed somewhat attractive.Excluding a few students who can enter C9 universities such as Beijing University and Jinghua, it is actually a good choice to be able to enter E9 alliance universities.Moreover, being able to enter Yucheng University, especially in the School of Numbers, they are simply the treasures of the School of Numbers.And if you go to other key schools with higher rankings, you may not know when monsters like Wang Yun will appear again.

From a genius admired by everyone to a mediocre passerby, not everyone can bear this kind of stimulation.This is why it is better to be a phoenix tail than a chicken head.

"En." Wang Yun said thoughtfully, "I think what Professor Wan said is right. If it is possible in the future, I will return to Yucheng University to teach."

"Hahahaha..." Everyone laughed loudly, and Professor Wan glared at Wang Yun, "You are still teaching, let's talk about being able to enter the national team."

Afterwards, Professor Wan began to write the higher-order differential formulas on the blackboard.After writing on the blackboard, he threw down the chalk, pointed to Wang Yun and Yuan Chengde and said, "The two of you come out, and the rest of the students, first think about the formulas on the blackboard. I will continue to explain to you when I come back later."

Wang Yun and Yuan Chengde looked at each other, and both walked out of the classroom.

At this time, Professor Wan came out of the classroom and said, "Let's go, I'll take you to the office of the School of Mathematics."

"Eh?" Wang Yun was stunned for a moment, "Professor Wan, this is—"

"Didn't I tell you to receive targeted training?" Professor Wan glanced at Wang Yun, "Why, don't you want to?"

"Where, where." Wang Yun said tentatively, "Is what you said still count?"

"Do you think my words don't count?"

"No, I don't mean that." Wang Yun gave up in a hurry and came to the office of the number institute. Under the light, the teacher who taught the basic geometry of the training team was writing something. When he saw Professor Wan coming in, he hurriedly said with a smile, "Professor you coming?"

"Well, give them the paper I gave you today." Professor Wan looked at the time while speaking, "Two hours, after they finish it, you can mark it."

"Okay." The teacher answered quickly, Professor Wan nodded and left the office.The teacher looked at the two with a smile and said, "What are you waiting for? Sit down."