The next morning, the first class on ordinary differential equations was held.

As soon as Lu Zhou entered the classroom, he felt that the atmosphere in the classroom instantly became a little weird.

The first and second classes usually attend classes together, but now the students of both classes are sitting here, and the classroom is packed.

Being stared at so directly by a pair of eyes, Lu Zhou was really a little stunned in his heart.

What's more, this line of sight is accompanied by a whispered discussion.

"Wow, the land boat that should be counted as one!"

"That high math score double perfect score of the god of learning!"

"High math is a fart, people even prove the conjectures in the textbooks! It's not easy to get a perfect score! ”

"By the way, it's still a textbook for graduate students......"

"Hey, don't envy people for being so awesome, I heard a buddy from the student union say that this guy didn't go back all summer vacation. When we were masturbating and masturbating, this guy was cultivating immortals and brushing books in the A teaching building every day. ”

"It turned out to be from the Xianmen...... I'm afraid it's going to be a catastrophe. ”

"I ...... Shock! ”

I'll rub it, can this group of animals be quiet when talking about others?

It's still pretty cool to listen to, though.

That's when the classroom teacher arrived.

The professor who came into the classroom, Lu Zhou also knew, it was Professor Liu Xiangping who brought him to the data modeling competition.

The time when this old gentleman came to the classroom was also very unique to him, never a second late, never a minute early.

"What are you doing standing, it's about to go to class, and you don't want to find a place to sit." Smiling kindly at Lu Zhou, Professor Liu placed the thermos cup on the multimedia podium.

"Well, I'm new here, too."

Lu Zhou smiled embarrassedly, quickly glanced at the back row of the classroom, and found that his three roommates were sitting scattered, obviously unable to occupy a position, so he was ready to turn around and move a stool to another classroom.

At this moment, a buddy sitting in the first row suddenly stood up, packed up the textbooks and pencil case on the table, and made a gesture of please.

"Big man, sit here."

"No, no, I'll just go to the next classroom and move a stool." Lu Zhou refused with a smile.

"No, no, no, I'll just move the stool, just ask for the notes to lend me a look!" The guy stubbornly insisted.

It's easy to borrow notes, as long as you return them on time, it's no problem to borrow them casually.

However, the problem is not in the notes.

Rather, in this situation, where does Lu Zhou dare to sit in the first row! Originally, he had an eye-catching debuff, but when the time came, he was afraid that he would quietly move a stool, and the whole classroom would have to pay attention to him unconsciously......

This feeling of being on your back is really uncomfortable.

Lu Zhou said that he refused to sit down, went to the next classroom without saying a word, moved a stool back, and sat next to Huang Guangming in the last row.

Curiosity is curiosity, these people can't go back to see him in class, right?

Professor Liu Xiangping looked at him with a smile and did not speak.

The bell rings and the lesson begins.

Professor Liu released the PPT, smiled, and said.

"Textbook to Introduction."

When others dug out their notes and prepared to listen to the lecture, Lu Zhou also opened the "Machine Learning Practical Handouts" and began to study those specially designed for tuning. Advanced algorithms designed to teach artificial intelligence.

Without the help of the focus capsule, it is really difficult to fully understand a book. However, fortunately, the level of the main discipline 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, which is as thick as a dictionary.

However, even so, when he checked Xiao Ai's core code last night, he still found a lot of things in it, which he couldn't understand with his current level of knowledge.

At the same time, Professor Liu continued to lecture on the stage.

“…… The requirements for equations in secondary school mathematics are usually to find out the relationship between known and unknown numbers in the research problem, list the equations or systems of equations that contain one or more unknowns, and then solve them. ”

"In practice, we often encounter problems with completely different characteristics from the above equations. For example, the movement and change of matter under certain conditions should be sought to find the law of its movement and change. Another example is that a rocket is propelled by an engine to fly in space, and it is necessary to seek the orbit in which it flies. This requires us to use the existing data to obtain the formal analytic formula of the function, rather than to calculate the specific unknowns from the known functions given by the 'problem'. ”

"Ordinary differential equations are a very useful 'tool' discipline, which has important applications in many disciplines, from the automatic control of machinery to the ballistic calculation of rockets and missile vehicles, and even the study of the stability of chemical reaction processes."

Speaking of this, Professor Liu smiled: "So, you should listen to this course carefully." If you don't learn this course well, and when you get a job in the future, don't say that you graduated from Kim University, and don't say that I taught it, it's too embarrassing! ”

Professor Liu is also an interesting person, his lectures are not boring, complex things can be explained in an easy-to-understand manner, and easy-to-understand things can be extended to in-depth fields.

Even Brother Guangming, who didn't listen to a lecture, put down his mobile phone this time, stared at the PPT on the curtain meticulously, and wrote something in his notebook from time to time.

University courses are advancing very quickly, but here alone, Professor Liu is no exception, lecturing is faster than turning a book.

It's impossible to take notes in class, and it's good to be able to keep up with the speed of the teacher's lectures in a university class. The students below are constantly taking pictures with their phones, almost like press conferences from some tech companies.

Half a lesson has passed, and the first chapter, the basic definitions and geometric explanations of differential equations and their solutions, has been completed, followed by the first subsection of the second chapter, the elementary integral method, the appropriate equations.

The difficulty escalates instantly.

A lot of new knowledge points were thrown over, and many students who had not yet previewed this chapter complained bitterly. is that the professor on the stage has the teaching ability to simplify the complex, and some elementary school scum also feel a little unbearable.

"The knowledge points are almost finished, I believe you have also previewed it yourself, and we will do the questions to practice your hands." Professor Liu smiled, pressed the laser pointer, and the PPT turned to the next page, "You can calculate this question, if anyone knows it, you can come up to the board." ”

[Determine 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 the time to glance at the question on the PPT, and saw that it was not difficult, so he didn't pay attention to it and continued to read his book.

However, other students did not have as much difficulty as him.

When I first came into contact with this course, many people had only pre-studied the first chapter, and had not yet previewed the second major chapter, and they were confused when they looked at the four words of the appropriate equation. It was only those top students who took the pen and acted out on the scratch paper.

Two minutes passed, and there was silence in the classroom.

"Why didn't anyone raise their hand?" Professor Liu smiled and joked, "You are all students who can be admitted to 985, so you can't all be escorted, right?" ”

The buddy of the second class sitting in the first row smiled and weakly said the thoughts of everyone present: "That big guy didn't raise his hand, how dare we raise my hand." ”

Many people in the front row nodded in agreement.

There are still people who have counted it, but no one dares to raise their hands.

Professor Liu pretended not to hear it, and smiled, "No one really came out to answer?" Looks like I'm going to have to give some prizes. That's fine! Whoever can solve this problem, usually add 10 points, and I will write it down for him. ”

Lu Zhou, who was still studying "Machine Learning", raised his hand in an instant with lightning speed and did not hurry to cover his ears, and the speed of raising his hand startled Huang Guangming, who was still writing next to him.

However, Lu Zhou didn't look at him, just stared at the example questions on the PPT with blazing eyes.

It's very usual!

It's such a simple and explosive question, it's just a waste of time!

However, Professor Liu didn't give him face, smiled at him, and said unceremoniously: "You put your hand down, this is very unimportant to you." Either you can hold it if you like, and I won't name you anyway. At the end of the semester, you can get a full score, and all the usual points will be given to you. One point worse, usually not a point! ”

Lu Zhou: "......"

The class gasped.

It's worthy of being a real scholar, has this started to book full marks?

Smiling awkwardly, Lu Zhou withdrew his raised hand.

At this moment, he didn't want to say a word except for an MMP.