Chapter 82

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

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

Yingshu Class 1 and 2 usually have classes together. At this time, students from both classes are sitting here, and the classroom is crowded.

Being stared at so directly by a pair of eyes, Lu Zhou was really frightened.

What's more, these sight lines were accompanied by whispered discussions.

"Wow, Lu Zhou is one!"

"That student god with double full marks in high numbers!"

"High numbers are a piece of shit, they even proved the conjecture in the textbook! It's not easy to get a perfect score on the test!"

"Additionally, it's still a textbook for graduate students..."

"Hey, don't envy people for being so arrogant. I heard a buddy from the student union say that this guy didn't go back for the whole summer vacation. When we were playing and laughing, this buddy was cultivating immortals and brushing books in classroom A every day."

"It turned out to be a member of Xianmen... I'm afraid it's going to be a calamity."

"I'm... terrified!"

I rub, can these animals be quiet when they talk about others?

Although it still sounds cool.

Just then, the teacher came.

Lu Zhou also knew the professor who came into the classroom. It was Professor Liu Xiangping who led him in the data modeling competition.

The time this old gentleman came to the classroom also had his unique style. He was never a second late or a minute early.

"What are you doing standing? Class is about to start, so I haven't found a place to sit yet." Smiling kindly to Lu Zhou, Professor Liu placed the thermos cup on the multimedia podium.

"Uh, I just came here too."

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

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

"Boss, sit here."

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

"No no no, I can just move the stool, just lend me the notes!" The buddy insisted stubbornly.

Borrowing notes is easy to say, as long as you return them on time, you can borrow them casually.

However, the problem is not with the notes.

However, in this situation, how could Lu Zhou dare to sit in the first row! Originally, he had an eye-catching debuff on his body, but when the time came, he was afraid that if he moved a stool quietly, everyone in the classroom would have to pay attention to him unconsciously...

This kind of feeling like a mang on the back is really uncomfortable.

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

Curiosity returns to curiosity, these people can't always look back at him during class, right?

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

The bell rang and the class began.

Professor Liu released the PPT, smiled and said.

"Turn the textbook to the introduction."

When others were pulling out their notes and preparing to listen to the lecture, Lu Zhou also opened the "Machine Learning Practical Lectures" and began to study those advanced algorithms specially designed for teaching artificial intelligence.

Without the assistance of the focus capsule, it is not easy to fully understand a book. Fortunately, the level of the main 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, 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 that 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 middle school mathematics are usually to find out the relationship between the known and the unknown in the research problem, list the equations or equations that contain one or more unknowns, and then solve them."

"In practical work, we often encounter some problems with completely different characteristics from the above equations. For example, the movement of matter changes under certain conditions, and we need to find the laws of its movement and change. For example, a rocket is driven by an engine. In space flight, it is necessary to seek the orbit of its flight. This requires us to obtain the formal analytical formula of the function with the existing data, rather than calculating the specific unknown through the known function given by the 'question'."

"Ordinary differential equations are a very useful 'tool' subject and have important applications in many disciplines, from automatic control of machinery to ballistic calculation of rocket and missile vehicles, and even research on the stability of chemical reaction processes."

Speaking of this, Professor Liu smiled: "So, you should listen to this course carefully in the Department of Mathematics. If you don't study well in this course, and you will be employed in the future, don't say that you graduated from Jinda University. , don't say it was taught by me, it's too embarrassing!"

This Professor Liu is also an interesting person. His lectures are not boring. He can explain complex things in an easy-to-understand manner, and easy-to-understand things can be extended to in-depth areas.

Even Brother Guangming, who did not listen to the lecture, put down his mobile phone this time, stared at the PPT on the screen meticulously, and wrote down something in his notebook from time to time.

University courses are advancing very fast, but here, Professor Liu is no exception. Lectures are faster than flipping books.

It is impossible to take notes in class, and it is already very good that the university class can keep up with the speed of the teacher's lectures. The students below don't stop using their phones to take pictures, which are like some tech company press conferences.

After half a class, the basic definitions and geometric explanations of the differential equations and their solutions in the first major chapter are over like a rocket, followed by the first subsection of the second major chapter Elementary Integral Method - Appropriate Equations.

Difficulty escalates instantly.

A lot of new knowledge points were thrown over, and many students who had not previewed this chapter complained. Even the professors on the stage have the teaching skills of simplifying the complex, and some elementary school scumbags feel a little overwhelmed.

"The knowledge points are almost covered. I believe that you have also previewed it yourself. Let's practice the questions." Professor Liu smiled, clicked the laser pointer, and the PPT turned to the next page, "This question, You do the math, if anyone knows, they can come up and write on the blackboard."

[Determine whether {y/(x-y)-1/x}dx+{1/y-x/(x-y)}dy=0 is an appropriate equation, and solve the equation. 】

Lu Zhou took the time to glance at the question on the PPT. Seeing that it was not difficult, he didn't take it to heart and continued to read his book.

However, other students did not have such an easy time.

When I first came into contact with this course, many people only previewed the first chapter, but had not previewed the second chapter yet. It was only those academic bullies who did the math on the scratch paper with a pen.

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

"Why doesn't anyone raise their hands?" Professor Liu smiled and joked, "You are all students who can pass the 985 test, so you shouldn't be recommended for admission, right?"

The buddy from the second class who was sitting in the first row smiled shyly, and weakly expressed the voice of everyone present: "The boss didn't raise his hand, how dare we raise our hand."

Many people in the front row nodded in agreement.

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

Professor Liu pretended not to hear, hehe smiled, "No one really came out to answer? It seems that I have to give a thumbs up. That's it! Whoever can solve this problem, the usual points will be added 10 points, and I will record them for him. superior."

Lu Zhou, who was still studying "Machine Learning", raised his hand in a flash without rushing to cover his ears, and the speed of raising his hand surprised Huang Guangming, who was still writing calculations next to him.

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

Very normal!

Such a simple and explosive question is simply a waste of money!

However, Professor Liu was very disrespectful to him, smiled at him, and said unceremoniously: "You put your hand down, it's not your share. Either you hold it up if you like, I won't call your name anyway. If you can get full marks at the end of the semester, I will give you all the usual marks. If you miss a point, you will not get a single point at the usual time!"

Lu Zhou: "..."

The whole class took a deep breath.

As expected of a true scholar, has this started to be reserved for full marks?

Embarrassed and smiled, Lu Zhou retracted his raised hand.

At this moment, he didn't want to say a word other than a sentence of MMP.