Chapter 82: No class

上午 In the morning of the next day, the first class of ordinary differential equations will be held.
As soon as Lu Zhou entered the classroom, the atmosphere in the classroom suddenly became a little weird.
Biao Ying counted one or two classes usually attending classes together. At this moment, the students in both classes were sitting here, and the classrooms were crowded.
Lu Zhou was staring at each other with such straight eyes, and Lu Zhou was really a little dazed.
What's more, this line of sight is accompanied by a quiet comment.
"Wow, the number one boat!"
"That learning with high scores and double perfect scores!"
"High scores count as farts, and people's conjectures in textbooks have proved it! It is not easy to take a perfect score!"
"Additionally, still a textbook for graduate students ..."
"Hey, don't envy others for being so aggressive. I heard a buddy of the Student Union said that this guy didn't go back all summer. When we were snoring, this buddy repaired books at the A building every day."
"It turned out to be a member of Xianmen ... I'm afraid it's going to be robbed."
"I ... shock!"
I rub it, can these animals talk quietly when they talk about others?
Although it sounds pretty good.
在 At this moment, the teacher came.
The professor who came in the classroom, Lu Zhou also knew, it was Professor Liu Xiangping who led him to the data modeling competition.
老 The time when this old gentleman came to the classroom is also very unique in his style. He will never be one second late or one minute early.
"Why do you stand up? I'm going to class soon. I'm not looking for a place to sit." Lu Zhou smiled kindly, and Professor Liu put the thermos cup on the multimedia platform.
"Uh, I just arrived."
Lu Zhou smiled embarrassed, quickly glanced at the back of the classroom, and found that his three roommates were sitting very scattered, apparently failed to occupy the position, so he was ready to turn to another classroom to move a stool.
At this moment, a buddy sitting in the first row suddenly stood up, packed up the textbooks and pen bags on the table, and made a please gesture.
"Brother, you sit here."
"No, no need, I'll go to the next classroom and move a stool." Lu Zhou said with a smile.
"No, no, no, I just move the stool, just ask me to borrow the notes!" The man insisted stubbornly.
Borrow notes to say, as long as you return on time, you can borrow any problem.
However, the problem is not in the notes.
But now, in this situation, where can Lu Zhou dare to sit in the first row! The debuff that attracted the eye was originally on his body. At that time, he was afraid to move a stool quietly, and everyone in the classroom had to pay attention to him unconsciously ...
This feeling like a man's back is really uncomfortable.
Lu Zhou said nothing and sat down, and went to the next classroom without a word, moved a stool back, and sat next to Huang Guangming in the last row.
Curiosity turns to curiosity, these people can never look back at him specifically during class, right?
Professor Liu Xiangping looked at him with a smile and didn't speak.
The bell rings and the lesson begins.
Professor Liu released the PPT, smiled and said.
"Turn the textbook to the introduction."
别人 When others took out their notes to prepare for the lecture, Lu Zhou also opened the "Machine Learning Practical Lectures" and began to study advanced algorithms specially designed for tuning and teaching artificial intelligence.
Without the assistance of focused capsules, it is not easy to completely eat a book. Fortunately, the level of major disciplines not only strengthens the ability to use knowledge, but also improves the ability to learn knowledge.
So far, he has read half of this textbook as thick as a dictionary.
即便 However, even so, when he checked Xiao Ai's core code last night, he still found a lot of things in it, which is incomprehensible with his current level of knowledge.
At the same time, Professor Liu continued to lecture on the stage.
"... The requirements of middle school mathematics for equations are usually to find out the relationship between known and unknown numbers in a research problem, list equations or groups of equations containing one or more unknowns, and then solve.
"In actual work, we often encounter problems with characteristics that are completely different from the above equations. For example, the movement of a substance under certain conditions must be sought for the law of its movement and change. Another example is the rocket propelled by the engine. To fly in space, we need to find its orbit. This requires us to obtain a functional analytical formula in the form of existing data, rather than calculating specific unknowns from known functions given in the 'title'. "
"Ordinary differential equation is a very useful 'tool' discipline, which has important applications in many disciplines, from automatic control of machinery to ballistic calculation of rocket missile vehicles, and even research on the stability of chemical reaction processes."
Having said that, Professor Liu smiled: "So, you should be able to listen to this course well in the Department of Mathematics. This course is not a good study. When you get a job later, don't say you graduated from Jinda University. Let alone teach me, it's too shameful! "
教授 Professor Liu is also an interesting person. The lectures are not boring. The complex things can be easily understood, and the easy-to-understand things can be extended to deeper fields.
Even a bright brother who did not listen, this time also put down the phone, meticulously stared at the PPT on the curtain, and from time to time write something on the notebook.
The university's courses are advancing very fast, but here is one point, Professor Liu is no exception. Lectures are faster than flipping books.
笔记 It is impossible to take notes in class, and the university class can keep up with the teacher's lecture speed. The students below do n’t disable their phones to take pictures, which is like a press conference for some technology companies.
In the past half of the class, the basic definition and geometric interpretation of the differential equations and their solutions in the first chapter are usually over, followed by the first section of the second chapter's elementary integration method-the proper equation.
Instantly upgrade difficulty.
A lot of new knowledge was thrown over, and many students who have not previewed this chapter are in distress. It is because the professors on the stage have the teaching skills to reduce complexity, and some elementary school dregs also feel a little overwhelmed.
"The knowledge point is almost the same. I believe you have also previewed it yourself. Let ’s do the exercises." Professor Liu smiled, pressed the laser pointer, and the PPT turned to the next page. "This question, You count, if anyone can, you can come up with a blackboard. "
[Judge whether {y2 / (x-y) 2-1 / x} dx + {1 / y-x2 / (x-y) 2} dy = 0 is an appropriate equation and find the solution of the equation. 】
Lu Zhou took a moment to glance at the question on the PPT. When he saw no difficulty, he didn't take it seriously and continued to read his book.
However, other students are not as easy as him.
I have just come into this course, and many people have only previewed the first chapter, but have not previewed the second chapter. Looking at the proper equation, the four words are aggressive. UU reading books www.uukanshu. com, and only those tyrants, did the calculation on the draft paper with a pen.
Two minutes passed and the classroom was silent.
"Why didn't anyone raise their hands?" Professor Liu smiled and joked, "You are all students who can pass the 985 exam, aren't they all sent up?"
二 The second-class buddy sitting in the first row, smirked, and weakly expressed the voice of everyone present: "None of the big brothers raised their hands, how dare we raise their hands."
Many people in the front row nodded in conformity.
There are still some people who have figured out, but no one dares to raise their hands.
Professor Liu pretended not to hear, and he smiled, "Is no one coming out to answer? It seems I have to give a little garnish. Let's do it! Who can solve this problem, I usually add 10 points to it, I will write to him on."
I was still studying Lu Zhou of "Machine Learning", and raised his hands instantly with the thunder and impatientness. The speed of raising his hands surprised Huang Guangming, who was still calculating.
However, Lu Zhou didn't look at him, just stared at the example on PPT.
It's very ordinary!
This is a simple question to the explosion, it's nothing!
However, Professor Liu didn't give him face, smiled at him, and said politely, "You put your hand down, it's very much your share. Or you can hold it if you like to lift it. I won't name your name anyway. . At the end of the period, I can get a full score, and I will give you all the points in normal times. One point difference, but usually no points! "
Lu Luzhou: "..."
The whole class took a breath.
I really deserve to be Xue Xueba. Have you started to book full marks?
He smiled awkwardly, and Lu Zhou retracted his raised hand.
At this moment, he doesn't want to say a word except the MMP.