Scholar’s Starry Sea

At around 10 o'clock in the evening, Wu Bin returned to the dormitory and found that the other three people in the dormitory were all leaning on the desk and struggling to write.

"Oh, it's rare." Wu Bin is really rare to see three people working hard together.

Hearing Wu Bin's ridiculous tone, Li Yan first lifts the head and said: "It's rare that you came back so early to be true. Is that paper on graphene finished?"

Wu Bin: "You guessed it all, just finished."

"Ah!!! God Wu, please accept the divine ability, I'm really uncomfortable." Sitting in Li Chen Anzhi next to Yan smashed his pen, his face full of love.

"What's the situation?" Wu Bin was a little inexplicable.

"I'm going to be killed by the line generation and electromagnetism. I thought it would be easier to learn if I was a little competitive." Chen Anzhi grabbed his hair, but stopped after thinking about it. With a hand, the pitiful looked towards Wu Bin: "Boss, can I borrow your notes to take a look? I can help you wash your socks!"

"I contracted the underwear! Let me take a look too? It would be better if you can give me a few pointers." Li Boxin couldn't help but yelled aside.

"Oh~" Wu Bin sighed then said, walked to Chen Zhian and glanced at the question he was doing.

"Kneeling on the matrix?"

"God Wu is wise!"

Picking up a pen, Wu Bin tapped on the matrix question Say: "Use row transformation first, then use the inverse matrix. After knowing that the matrix determinant is equal to -1, calculate the adjoint matrix. For the element numbered mn, cross out the mth row and nth column of the original matrix..."

"Wait, wait, I'll digest it first." Chen Zhian couldn't help feeling a bit hot when he spoke. He was obviously a freshman, and the gap was too big...

" Hmm..." Wu Bin made a meaningful nasal voice and asked, "Do you think the thread is here to kill you?"

At this time, Li Boxin snapped back: "Well, or don't give it. A happy kind, all kinds of torture."

Chen Zhian also immediately nodded and agreed.

Wu Bin: "To be honest, I think Luo teacher's lecture is still very good, not only the knowledge points and Mathematics ideas, but also the practical application is very full, you two will not Didn’t you listen carefully?"

"Heaven and Earth, my conscience, I didn’t even dare to blink my eyes when I was on the substitute course." Chen Zhian was sighed, "Ai, Mathematics in high school, I learned It's pretty easy, but the college Mathematics makes me feel like I was studying in a fake high school, completely confused."

Wu Bin: "Normal, there is a big difference between high school Mathematics and university Mathematics. It is that university Mathematics is about to start to move in the direction of modern Mathematics, and modern Mathematics is developing in an abstract direction."

Li Boxin: "I'm almost exhausted..."

Ignoring Li Boxin’s complaints, Wu Bin continued: “The advantage of abstraction is that the more abstract the tool, the wider the scope of application. The price is that it is more difficult to get started.”

“Mathematics is not like Physics. Many things can also be understood by specific things. If you want to learn Mathematics well, you must build up a sense of Mathematics for abstract things. Do you understand Mathematics?"

"I don't understand." Chen Zhian shook his head for a while.

"Ai, do more questions, this feeling is more difficult to establish without doing a certain amount of exercises."

Chen Zhian: "I'm not doing it right now. ……God Wu has any tricks to teach you?"

"You should do more questions before talking."

"You must have a goal to do the questions...I am panicking now I don’t want to drop out of my freshman year..."

Listening to Chen Zhian’s crying tone, Wu Bin thought for a while and said, "Hey, I really want to say something. For example, for a question, you draw an image from the intuitive feeling or think about it in your mind, and you feel that the conclusion you need to prove will come out. Have you ever felt this way?"

"Hey, I often have this feeling! "Li Boxin on the side looked very excited, as if he had been poked at some G-spot.

"But you can't write it in the strict Mathematics logic language, right?"

"Russian...Yes." Li Boxin froze.

"Then it means that you still can't do this kind of questions. Take the simpler continuous function intermediate value theorem in Calculus as an example. If a question asks you to prove this theorem, you might draw a picture. I feel that a function value is greater than 0, and a function value is less than 0. Then the curve is continuous and will definitely cross the x-axis, but I don’t know how to express it..."

Listen to Wu Bin's simple and clear learning ideas, Li Boxin and Chen Zhian are frequently nodded, and from time to time there is a look of "so that's how it is".

"So let’s just say, I think for the Mathematics course, such as Calculus, to find a limit, you may sometimes feel that it is obviously equal to 1 with your eyes, but let you use strict language to prove it. I don’t understand the proof. This is actually not the same."

"Because the purpose of this question is to investigate your use of the Mathematics language to demonstrate. If it fails to prove, it is actually the failure to meet the standard. "

Looking at the two looked thoughtful, Wu Bin finally concluded.

"I have said so much to express a meaning. Only by knowing how to do the questions is to really understand. It is never a shame to brush the questions."

"Oh...I Is it so obvious?" Chen Zhian blushed old.

Being able to enter the University of Science and Technology, Chen Zhian is still very confident in his academic ability, so he always feels that brushing questions is a very low behavior, even if he can’t keep up with the progress of the class, I still think that there may be something wrong with his learning method or thinking.

Now it is a bit embarrassing to be pointed out by Wu Bin in person.

Li Boxin on the other side has already gone silently.

"Where are you, also doing homework in the liver specialty class?" After dialing the two, Wu Bin looked back at Li Yan.

"No, I'm writing a manuscript. I'm going to post a Minke on Weibo, oh no, well known."

"You really have a leisurely mind..."

"It's not that I am idle. I feel uncomfortable watching this slut jumping up and down. I will kidnap morally at every turn. Here, let me have a look." Li Yan said as he stretched his mobile phone in front of Wu Bin.

Wu Bin took a look and found that he was tearing up about the stock market.

"You have all research on stocks!?" Wu Bin was surprised.

"Understand a little bit, but it’s not stocks that are torn apart. It is a 2B who knows that they have to elevate the stock market crash to the level of national instability. There are a bunch of people who follow along. It’s simply."

"This is not the basic operation of Weibo." Wu Bin said and pushed the phone back.

When he first played Weibo before, he found a hot search that someone called Yang Zhenning. The above listed some of Yang's status in the Physics world, as well as what contributions he has made and what he has gained. prize.

At that time, Wu Bin looked astonished. One person can count Physics (Li Yang's theorem, Young Baxter equation), particle Physics (parity non-conservation) and field theory (Yang Mills) have made significant contributions.