Zhou Xing returned to the bedroom, and as soon as the sky was bright, Li Keda had already gotten up.

"Are you on a blind date?" Li Ke replied and got up at 6 o'clock, which is rarer than aliens.

A small jacket on the upper body, black skinny jeans, leather shoes are shiny, and I don't know what is wiped on the head, which is brighter than leather shoes.

"What's the blind date, class is coming soon, let's go. Li Ke couldn't help but say, and pulled Zhou Xing away.

Zhou Xing glanced at his watch, and at 5:50, even Wu Jingwen, who worked hardest, was still asleep, and he reached out to touch Li Keda's forehead.

"Don't make a fuss, it's almost too late, today is a big class, together with the computer department. Li Keda slapped Zhou Xing's hand away, "Hey, why did you go early in the morning, what is this black bag?"

Jue seemed to be unable to sleep, Zhou Xing replied casually, Li Ke didn't care, and the two went to the classroom early.

When he arrived at the classroom, Li Keda picked a front seat and sat down, Zhou Xing sat next to him in a daze, and saw that he took out two more books and occupied two seats.

"You don't need to occupy a seat for the two of them, right?" Zhou Xing said.

Peng Yanyu must go directly to the back to play with his mobile phone, and Wu Jingwen can solve the seat matter by himself.

"It's too crowded, it's too crowded. Li Ke replied a little blushing, but Zhou Xing came up sleepy, yesterday in order to prepare things, he was busy until almost dawn, and the others hadn't come yet, so he slept for a while.

Dizzy, feeling that someone was patting him, he got up with a strong spirit, and the surroundings were already full of people, and on the podium, the teacher was passionately explaining advanced mathematics.

"Hey, wake up, the teacher has been looking at this side several times, I'm afraid he will be mad for a while. Li Ke replied in a low voice.

Zhou Xing wiped his face, forced himself to be sober, turned his head to look, and found that Liu Yu and Chen Xiaoya were sitting next to him, today is a big class, the two departments are closed, no wonder the fat man is so active, he jumped down and down early in the morning to come to class.

Greeting the two with a smile, Zhou Xing turned his head to listen to the class, and after the rehearsal that day, the four of them had become friends.

After listening to it for a while, he suddenly remembered the software he asked for yesterday from Get, took out his mobile phone, clicked on the software, and handed it to Li Kea.

"What is this?" Li Ke asked in surprise.

"Your dream!" Zhou Xing clicked twice on the screen, loaded the picture from yesterday, and clicked the restore button, and a clear picture appeared on the screen.

"Oh my day, I read it right!"

Li Keda stood up with a loud shout, looked at his phone in ecstasy, and suddenly felt that the sun was shining today, the weather was fine, and countless ...... The teacher, Yuzhao, was waving to him.

"What's so exciting?" Liu Yu, who was sitting next to him, looked up at his phone, but couldn't see it clearly due to the angle.

"It's okay, I'll be able to enjoy the teachers' complete performances in the future!" Li Ke replied.

"I don't know what this student needs the teacher to perform, just raise your hand to signal, stand up and shout, and affect others to listen to the class. The math teacher pushed the bottom of the heavy beer bottle, looked at Li Ke with a gloomy face, and replied, "If you don't understand anything, classmate, you can bring it up." ”

There was already a suppressed laughter around, the word teacher is very broad, and the scope is much smaller with Yuzhao.

Li Keda also realized that he was in trouble, scratched the back of his head in embarrassment, and said sorry again and again, wanting to sit down.

But the math teacher obviously didn't want to let him go, he shook the chalk end on his hand, "Since there is nothing I don't understand, then please explain to us how you understand the n-dimension in the n-dimensional vector space." ”

Boom!

In addition to whispering in the classroom, this swallowing saliva was the loudest, Li Keda's fat face was flushed, and he stood there at a loss.

This concept has just been talked about today, and his mind is not in the classroom at all, to talk about three-dimensional, D cup, he still understands a little, what the hell is n-dimensional?

Zhou Xing was also dumbfounded, he had read some popular science books and knew a little, but if it was brought to the university classroom, it was a bit insufficient.

"If you've seen what a high-dimensional space is, you should also talk about N-dimensionality. Gate's voice suddenly appeared in Zhou Xing's ears, startling him, and he looked around nervously, seeing that he didn't attract the attention of others, so he was relieved.

Gat, they can even control the light, let alone the simple sound waves.

"Don't be afraid, boss, I just left a back door on your phone. ”

"This classmate, what do you think?" The teacher pressed step by step, and turned to Zhou Xing, just sleep in class, and play with his mobile phone to influence others, and he must not let go.

Zhou Xing smiled slightly, put his mobile phone on the desk, stood up and patted Li Keda, motioned for him to sit down, and said confidently: "Since the teacher asked me to speak, I will share what I know with everyone." ”

For example, as we all know, the line is one-dimensional, the surface is two-dimensional, and the body is three-dimensional. On top of the three-dimensional space, add one dimension, that is, the four-dimensional space, generally speaking, this dimension refers to time, that is, the simple understanding of space-time. ”

"In mathematics, n-dimensional space is not an exact concept, but can be simply understood as the degree of freedom of an object, which is reflected in the normalization and strictness of complex things......"

"Mathematically, it can be divided into n-dimensional linear space, n-dimensional Euclidean space, n-dimensional topological space, and other understandings. ”

"In an n-dimensional linear space, n linearly independent vectors form its set of bases, which can be mathematically expressed as ......"

"N-dimensional Euclidean space, which was first applied to deal with the plane geometry of two-dimensional objects on a plane, and then developed into the three-dimensional geometry of three-dimensional objects, when it is extended to any finite dimension, it is called n-dimensional Euclidean space...... The final problem with Euclidean space is that it is not technically a vector space, but a vector space acting on it......"

When Zhou Xing stood up, most people still had the idea of watching the excitement, ready to see him make a fool of himself. When he began to explain, there were still people pointing at the jokes, but after talking for a while, everyone realized that this was not a punishment at all, but a naked show-off!

is a real scholar, who dares to sleep unscrupulously in class, and can stand up and talk eloquently in the teacher's "concerning" gaze, and can constantly nod the teacher's head.

The math teacher was surprised, these theories were very common to him, but it was unusual for a freshman to speak casually, even if it was the doctors in his laboratory, the understanding of the n-dimension was probably not so profound.

With Gate's explanation, Zhou Xing became more and more into the role, and at first he was a little jerky, but later he was full of emotion, like a special teacher, and then taught a group of students.

"Based on the theory of your earth, ......" Zhou Xing said smoothly, and said it directly according to Getter's tone, but a group of people listened fascinated, and no one paid attention to his slip of the tongue.

According to the theory of Buddhism, it can also be called the three thousand worlds...... In terms of Taoism, it can be understood as the thirty-six heavens, which are reflected in many ancient myths, so the wisdom of the ancients should not be underestimated. ”

Unconsciously, the bell for the end of class had already sounded, and Zhou Xing had to stop and lick his lips unsatisfactorily.

The math teacher put the chalk back in the box, and looked at Zhou Xing's eyes lit up, "It is said that there must be my teacher in the threesome, you not only have a deep understanding of mathematics, but even the level of classical culture is not ordinary, and today I am also taught! Not ordinary, not ordinary! Have time to come to my laboratory and discuss math problems with my students, so that they can save their eyes from being above the top every day, and they always feel that they are amazing." "His students, at worst, are also graduate students.

Before leaving, he also pointed at Zhou Xing with his finger and said with a smile: "You sleep well, you sleep reasonably, but the place is not well chosen, and it is not an example." ”

In a word, the room full of people laughed, and Zhou Xing instantly changed back to his original form and apologized again and again.

Li Keda smiled with a smile on his face, and took Zhou Xing's hand for a while, "Brother Xing, what does it mean that a master does not show his face, he does not show his appearance, brother, I know it, the final exam depends on you, as long as you can reach 60, this pile of pieces will be all yours." ”

Zhou Xing was used to the fat man's sudden cheapness, and he knew that he would not go back, so he crossed Li Ke and asked Liu Yu: "Liu Yu, what do you think?"

Li Keda hurriedly turned his head and looked over nervously.

Liu Yu's face turned red, but he didn't avoid it, and said jokingly: "Zhou Daba, I think there must be something strange about this fat man." After that, he packed up his things and walked out.

As soon as Li Ke saw it, he quickly grabbed the backpack and went to be his attendant.

Zhou Xing also began to pack his things slowly, he was not interested in being a light bulb.

A faint fragrance wafted over, it was Chen Xiaoya. She wore a dress with flowers on a blue background today, like the girl next door, looking at Zhou Xing with inquiring eyes, and she was a little embarrassed in the face of Zhou Xing, who could talk eloquently throughout the class.

"Zhou Xing, what did you show Li Ke to make him happy like that?" Chen Xiaoya asked.

"That...... It is an image processing software that can handle many complex picture problems. Zhou Xing was in a hurry and made up a lie that really couldn't be true.

"Really, is it easy to use? Go back and send me a copy, I just happen to have some pictures that need to be processed. ”

"Okay!" Zhou Xing secretly wiped his sweat, fortunately he didn't want it now.

The corners of Chen Xiaoya's mouth pulled out a beautiful arc, as if she had found something interesting, and asked Zhou Xing: "What do you mean by your theory of the earth?"

Yes?