Chapter 13 Just Thinking About It
[The registration list for next week's physics competition is as follows, everyone please check if there is any problem. 】
Two days later, Li Mu was on his way to Professor Lin Yao's office when he suddenly saw a list sent by the monitor in the class.
This is the physics competition they mentioned in Professor Wu Mengyuan's class two weeks ago. If they get good grades, they will have the opportunity to participate in the International College Physics Competition.
Although Li Mu is interested in this competition, but at present, his ambition is not here.
Today, his only interest is writing papers.
Just like at this time, he was about to take the paper he had translated and double-checked that there were no problems with the typesetting and format, and let Professor Lin Yao see if there were any problems.
Looking at the list posted below, he opened it curiously, wanting to see who in his class had signed up.
The list includes all applicants from all grades and classes. There are quite a lot of applicants for sophomores and juniors. As for seniors?
The seniors are all ready to graduate, and of course they will not participate in this kind of competition, so the sophomores and juniors are basically the main force.
As for the freshman, although there are also, but very few.
However, when Li Mu saw the number of applicants for the physics international class of their department, he couldn't help being amazed, it is indeed an international class.
The international class is a class jointly established by Shanghai Jiaotong University and foreign universities, mainly with Duke University and the University of Maryland in the United States. The classes are all taught in English.
In terms of the quality of the students, on average, it is slightly higher than that of ordinary classes. After all, the score line for applying for the exam is there.
Of course, the important thing is to have money.
Take a look, there are a total of 20 applicants for their freshman international class, and I'm afraid the whole class has come.
Tsk tut a few times in amazement, and then he looked at the number of applicants in this class, and there were very few. Li Mu had heard that those who signed up had all participated in the Physics Olympiad in high school, and they were considered competitive talents.
No longer paying attention, he turned off the interface casually, and he also came to the door of Professor Lin's office.
He knocked on the door, followed by "Come in" from inside, and then he walked in.
But what made him a little dazed after he walked in was that Professor Wu Mengyuan was also there.
The last time I went to Professor Wu Mengyuan's place, Professor Lin Yao was there, and now I went to Professor Lin Yao's office, and Professor Wu Mengyuan was there again.
And the two of them were standing next to a small blackboard, as if they were studying something.
"Professor Lin, Professor Wu."
Seeing Li Mu coming in, Wu Mengyuan greeted with a smile: "Xiao Li is here."
Lin Yao also nodded to him and said, "Sit down first, Professor Wu and I are still discussing a problem."
Li Mu nodded, then sat aside and glanced at the office, there were several seniors reading or writing at their desks.
Well, they are all hard-working math people.
Withdrawing his gaze, he looked back at the problem the two professors were studying.
It is a mathematical matrix, of course, the most important thing is that it is also mixed with some physical things.
The content of linear algebra, but it is obviously a difficult one, because the two professors are arguing about the next steps.
"You obviously can't do it. We want to get the identity matrix now. If you use your method, you will definitely not be able to calculate it in the end."
"But for now, what new direction can we think of?"
"Unless we find a new way to deal with it, hey, maybe this becomes the innovation point of our paper?"
"Then look for it first."
"I'll do the math first."
After speaking, Lin Yao took out the blackboard pen and started to write.
And Professor Wu Mengyuan was watching from the side, rubbing his chin and thinking.
Li Mu didn't know what was going on, the problems the two professors were researching looked very powerful...
He returned to the problem that the two professors were studying, and looked at...
Suddenly, why does Li Mu feel that this thing has a familiar feeling?
He pondered for a long time, and finally figured it out.
Isn't this the same thing that appeared in the paper that proved Adama's conjecture in his mind?
Then follow the method in that paper...
He started the calculation in his mind, and finally found to his surprise that he successfully found the identity matrix that the two professors were looking for.
Well……
Seeing the appearance of the two professors, he hesitated, should he say it?
But just as he thought about it, Professor Wu Mengyuan suddenly looked at him and asked with a smile: "Xiao Li, are you also interested in this question? Do you want to try it?"
Of course, what Wu Mengyuan said was just to take care of Li Mu, but he didn't really want Li Mu to give it a try.
It's just that Li Mu heard Professor Wu's words, try?
Then "try".
"Okay, let me try."
As he spoke, he stepped forward.
Wu Mengyuan was slightly taken aback, and then smiled. Since Li Mu had the spirit of experimentation, he naturally supported it, so he handed the blackboard pen in his hand to Li Mu, and at the same time explained briefly to Li Mu.
"We now need to enable this matrix to generate singular values similar to the singular value decomposition, you want to..."
But before he finished speaking, he froze.
Because Li Mu had already started the calculation on the blackboard.
And the first step is completely different from what the two of them discussed before.
It's just that this is completely different, but it has a different effect...
"It actually replaces the singular values in S with H, and then eliminates the matrices U and V...then divides the square of H by..."
"etc……"
When Li Mu came out a few steps ahead, Wu Mengyuan's thoughts suddenly became clear.
"this……"
He was a little dazed, then pulled Lin Yao who was still doing calculations by himself, and pointed to Li Mu.
Lin Yao looked at Li Mu suspiciously.
"what?"
After just taking a look at Li Mu's first few steps, he was also stunned.
"this……"
After a while, Li Mu put down the pen in his hand, clapped his hands lightly, and looked back at the steps he had completed.
"Well...it should be fine."
Immediately he turned his head to look at the two professors and said, "Professor..."
As a result, as soon as he opened his mouth, the two professors stepped forward and pushed him aside, and then stared at his few steps, from top to bottom, left to right, and looked again carefully.
In the end, Lin Yao turned his head to look at Li Mu with complicated eyes. Although he felt unworthy, he really wanted Li Mu to apply for his postgraduate degree at that time.
Of course, he still didn't say this sentence, so as not to put pressure on Li Mu.
He said, "Li Mu, you..."
After opening his mouth, he didn't know what to say, and finally he could only say simply: "You are the most talented student I have ever seen."
Wu Mengyuan also nodded in agreement: "It's also the most talented person I've ever seen. With your help, it can be said that it saved us a lot of time."
"How did you come up with it?"
Although this problem will not bother them in the end, the problem is the time and energy spent in the middle, which is not so easy to measure.
Li Mu scratched his head, he didn't expect to be praised so highly by the two teachers.
He said shyly, "Actually...it's nothing. I just thought about it and wrote it down."
The tone was embarrassing, but what he said was very interesting.
Both Lin Yao and Wu Mengyuan rolled their eyes.
Just think about it and write it out?
It felt like he was mocking the two of them.
Of course, they wouldn't be angry because of this, after all, Li Mu also spoke unintentionally.
What's more, it seems that Li Mu really thought about it just now, and then wrote out the question?
After all, it wasn't long before they came here.
This made the two professors wonder, what's going on in this young man's head?
At this time, Lin Yao suddenly asked: "Li Mu, why don't you come to our current project?"
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