After hearing Professor Lin Yao's request, Li Mu didn't waste any time, stood up, left his seat, and walked to the blackboard.
He picked up the chalk and started writing.
"First of all, the equation 2.12 we discussed earlier..." Li Mu pointed to the equation 2.12 on the ppt with his other finger, "It can actually be restated equivalently as -"
As he spoke, he wrote new formulas on the blackboard.
【DJ(v)(t)∈ S,DJ(v)(t)∈ S,∫ΩDJ(v)(t)……】
Seeing the new formula he wrote, Lin Yao and Wu Mengyuan also left their seats and moved closer so that they could see it more clearly.
Of course, what's more important is that Li Mu's newly rewritten style has already made their eyes light up.
"And then..."
"Introducing the Lagrange multiplier λ∈H1 0 (Ω) with the constraint z = 0, it is obvious that problem (3.3) is equivalent to the following saddle point problem..."
…
Time passed by minute by minute, and the blackboard that occupied one wall was gradually filled with blank spaces by Li Mu's calculations.
The two professors frowned, obviously lost in thought.
And those graduate students became more and more confused.
They could understand it at first, but they couldn't resist Li Mu's writing speed. After a while, it exceeded their thinking speed and was beyond their reach.
Why is this thing actually a Stokes-like question?
Why is gqdx = 0?
Why……
They seemed to have a million reasons at this time, and even looked at gqdx and automatically saw it as gdx - shit...
But Li Mu didn't explain it at all, he just deduced it, and probably only two professors could keep up with him.
The graduate students were on the verge of tears. Why did they come to this research group?
Why did they have to meet such a fierce person?
Finally, I swallowed my tears, then honestly took out my mobile phone, waited for Li Mu to finish writing, then took a photo, and then studied it when I got back.
In this way, until the entire blackboard was just finished writing, Li Mu finally put down the chalk.
He patted the chalk dust on his hands, then raised his head and read it again.
There were no problems in the derivation process, and he basically wrote everything he wanted to write.
The mathematical advantages of the brain computer are fully demonstrated in the derivation of this process.
"That's it. I just think that for this kind of nonlinear problem, it should be more effective to calculate the equation in an imprecise but effective way."
"Especially in the CG conjugate gradient algorithm."
While listening to Li Mu's narration, I looked at the full process on the blackboard.
Moreover, the writing on the blackboard is so well done, both the font and the overall layout look very comfortable and have a sense of computer precision.
Lin Yao and Wu Mengyuan couldn't help but sigh in their hearts at this moment.
What else can they say about such students?
Not to mention that the method given by Li Mu once again solved their problem.
Clean and thorough.
After completely absorbing all the content, Lin Yao couldn't help but stretched out his hand and clapped.
"Very good, very good."
"This is more than good..."
Wu Mengyuan shook his head and couldn't help but sigh.
The method given by Li Mu is not difficult, and it can even be said that it does not have very difficult technical knowledge, but the victory lies in skill.
And if you want to discover this "coincidence", you can only look at the individual's brain.
Some people may not be able to come up with this kind of "coincidence" even if they think about it for a lifetime.
But for some people, coming up with this trick is extremely easy.
And obviously, Li Mu belongs to the latter.
Thinking of this, the two professors couldn't help but shake their heads.
Such a mind is something that even they would envy, but they cannot envy it.
Lin Yao turned his head and looked at his graduate students, wanting them to learn from their junior students. However, he saw that the faces of these graduate students still looked like "Who am I? Where am I?" In the end,
He shook his head and gave up.
Forget it, the grade is not enough.
Although in his and Wu Mengyuan's eyes, Li Mu's method is not technically difficult and is better than cleverness.
But for these graduate students, the technical difficulty is very high, and coincidentally...
Where is the coincidence?
You can't even tell it by looking at it.
Finally, Wu Mengyuan patted Li Mu on the shoulder, turned around and said, "That's it. It seems that our group meeting today can be ended early."
"It seems to be the same reason." Lin Yao agreed.
Today's group meeting was originally intended to discuss this difficult point, but Li Mu stopped the topic not long before it started.
There may still be difficulties that need to be overcome in the future, but compared to this problem...
I guess it will be simpler.
So there was no nonsense, Lin Yao directly announced the end of this group meeting.
But the graduate students who used to leave every time they finished, all stayed, carefully copied down Li Mu's writing on the blackboard, and then started to deduce it step by step. If they had any questions, they would ask Lin Yao. Anyway, Lin Yao
is their mentor.
For a moment, no one left the discussion room.
As for Li Mu, Wu Mengyuan pulled him aside to greet him.
"How have you been studying recently?" Wu Mengyuan asked, but after asking, he shook his head, "Forget it, there is probably no need to ask this question."
With the ability that Li Mu has shown now, what problems can he still have in his studies?
So, Wu Mengyuan asked again: "Are you having any difficulties in life? If you have any problems, just tell me and I will help you with some funding."
Obviously, Li Mu's family is not superior at all, and is even very ordinary.
This can also be seen from Li Mu's clothes.
If such an outstanding student still has difficulties in life, wouldn't it affect the development of his or her talents?
Wu Mengyuan did not want to see such a thing.
After receiving the professor's concern, Li Mu's heart warmed slightly, and he waved his hand and said: "Thank you, Professor Wu. I don't have any difficulties. I just have enough to eat and study, and I don't have any shortage of clothes."
Wu Mengyuan laughed and said, "That's good. If it doesn't work out, I'll tell Professor Lin Yao to give you this month's money first."
Li Mu still earns a salary of 3,000 yuan a month in their research group.
In fact, based on Li Mu's current performance, no matter how high it is, it can't be helped, as their research team still has so many people to support.
Li Mu smiled and said, "Don't bother me, Professor, I'm not so financially stressed right now."
He doesn't have a strong need for money right now, so he doesn't need to be in such a hurry.
"That's good." Wu Mengyuan nodded, and suddenly said: "Oh, by the way, you seem to be going to participate in our physics competition tomorrow, right? I remember that if you can get first place in the international physics competition,
The school will also award 10,000 yuan."
Li Mu's eyes suddenly lit up.
Take back what you just said, he needs money very much.
After all, that’s 10,000 yuan!
joke!
"I will definitely get this first place!"
Seeing his appearance, Wu Mengyuan laughed and said, "Okay, then I will be waiting to present you with this award myself."
Suddenly at this time, a voice came from the side.
"Um... Junior Brother Li, can I ask you a question?"
Li Mu turned around and saw a senior graduate student coming to him with a notebook.
The question he asked was a question in his derivation process just now.
As for why this graduate student took the initiative to ask Li Mu questions...
Taking a look at Professor Lin Yao's place, there were already several people surrounding him. They probably didn't want to wait too long, so they came to find Li Mu.
Wu Mengyuan on the side nodded approvingly at the graduate student. It is commendable to be able to ask questions without shame.
Of course, Li Mu did not refuse and began to explain to the senior.
"We can reformulate this as a linear variation problem of Lagrange multiplier λ..."
Li Mu's explanation began, while Wu Mengyuan watched next to him, becoming more and more pleased and making a decision in his heart.
He wants to provide Li Mu with a perfect college career.
