It doesn’t matter if you can learn physics. It’s very admirable that you can learn physics so deeply.
And at the same time, he is able to study physics and mathematics textbooks in foreign languages, which can only be praised by a big boss.
Suddenly, she came back to her senses, wait, variational inequality?
This mathematical method has also been used in economics and finance. As a finance student, she was recently learning about variational inequalities, and even encountered learning problems.
She opened her mouth and finally whispered: "Classmate, classmate?"
Seeing that Li Mu didn't respond, she sighed and had no choice but to reach out and pat Li Mu on the shoulder.
Li Mu's hand that was typing stopped and he suddenly came back to his senses, turning his head to look at the person who was photographing him.
With his current memory, he recognized this girl almost immediately.
Then he realized that he had forgotten the time again.
"Ah...I'm sorry, I'm leaving now."
A skilled ctrl+s, alt+f4 closed the interface, and then closed the computer directly.
"No, no, classmate, I just want to ask you, do you know variational inequalities?"
Yun Rongshang asked quickly.
"Variational inequalities? Oh, I can."
Li Mu nodded, of course. Although variational inequalities are also a big knowledge point, he still knows a lot.
Otherwise, I wouldn’t have written a paper related to this.
"Then can I ask you a question?"
With that said, Yun Rongshang took out a small notepad from his pocket, flipped through it, and finally turned to a page, then handed it to Li Mu.
"As for this question, I have been thinking about it for a long time today, but I still can't write it."
Come to ask questions?
Li Mu was stunned for a moment, then nodded and took the small notepad.
"Let me be healthy."
The notepad is very small, but the girl's handwriting is also very graceful and small, and she can just write a question in it.
This is a problem in the economic field. To put it more simply, it is an optimization problem.
Variational inequalities are a mathematical method used to find optimal solutions or equilibrium states in the economic field.
This question mainly focuses on solving variational inequalities.
After Li Mu thought for a moment, he took some draft paper from the side and started writing.
"This problem is indeed relatively difficult among variational inequalities. The most critical point is how to connect these groups of variational inequalities."
As he spoke, Li Mu began to write.
"By treating each variational inequality in the system of simultaneous variational inequalities as a variational inequality problem with parameters, under the assumption that each variational function is strictly monotonic, each variational inequality with parameters can be
Determine an implicit function with parameters as independent variables about its solution, and prove the continuity of the Cain function under appropriate conditions..."
"Then use Brouwer's fixed point theorem..."
As Li Mu talked, the draft paper was filled with his explanations.
"OK, done. This question is not bad, but the strange thing is why the question is related to the economy."
"Are you studying economics?"
Li Mu said casually and turned to look at the girl next to him.
However, Yun Rongshang was stunned.
Who is she and where is she?
Why do you feel like you are listening to heavenly scriptures?
Is she in heaven?
"Classmate? Classmate?"
Li Mu shouted again, feeling a little strange in his heart.
This girl looks quite pretty, but why is she a little dull?
At this time, Yun Rongshang finally came to her senses and asked weakly: "Classmate...oh no, senior, can you say it again? I...didn't understand."
At this time, Li Mu had become a senior in his eyes, and maybe at the doctorate level.
"Well……"
Li Mu was stunned for a moment, senior?
He is only a freshman, is there still a big zero in our school?
Forget it, let's not worry about it for now, and then he explained it to Yun Rongshang carefully again.
For him, giving lectures to others can be regarded as reviewing relevant knowledge points, so he is quite happy to do this kind of thing.
In this way, he spent five or six minutes telling Yun Rongshang again.
And Yun Rongshang gradually changed from vaguely understanding to mastering the remaining knowledge points, and she needed to understand the remaining knowledge points by herself.
"Thank you so much! I wasted your time."
Holding her own small notebook, Yun Rongshang looked at the problem-solving steps and ideas written on it and said with great gratitude.
Li Mu smiled and waved his hand: "You're welcome, the question is actually quite simple, and it didn't take me much, it only took a few seconds... Ahem, I mean, for those of you studying finance and economics, this kind of question is indeed a bit difficult.
It’s a little difficult.”
It took a few seconds...
Ah...did you pretend I didn't hear it?
Yun Rongshang wanted to roll her eyes, but thinking that she had just gotten her question, she started to talk about it...
They seem to be telling the truth.
But at this moment, a voice suddenly came: "Xiaoyun, you are here. I saw that you haven't come back for a long time, so I thought something happened."
The two of them turned around and saw their library aunt coming over.
Yun Rongshang's face turned red. She was asking questions here and had forgotten her own job.
"Ah, I'm sorry, auntie, I'm asking this classmate a question here, I'll take care of it now!"
The aunt waved her hand and said: "Forget it, it's already so late. You students have worked hard in studying, so you should go back and have a rest early. I'll take care of it."
"That's it... Okay, thank you, auntie." Yun Rongshang noticed that it was almost eleven o'clock and said gratefully.
Li Mu also noticed the time and quickly packed up his things. He would have to get up at six o'clock tomorrow morning. Although his sleep quality was good, he still had to maintain six hours of sleep every day.
Just like that, he picked up his schoolbag and quickly left the library without talking to the girl. However, he had just taken a few steps when a "Hello" came from behind.
I turned around and saw that it was the girl just now. She was following me with her schoolbag on her back.
"Thank you for teaching me just now." Yun Rongshang said, "My name is Yun Rongshang."
"It's okay, didn't you already thank me?" Li Mu waved his hand to show that he didn't care, "My name is Li Mu."
Yun Rongshang smiled softly, and then asked curiously: "Actually, I want to ask, are you really from the physics department?"
"That's not it." Li Mu spread his hands.
"I feel like you are more like a math major."
Li Mu touched his nose.
Mathematics department?
Maybe, he might be more suitable for the mathematics department now. Computers and mathematics are a natural match.
Physics has become a junior.
However, he still left a place for physics in his heart. After all, this was his first love.
"By the way, were you writing a paper just now? SCI?"
"Yes, you can actually see that?" Li Mu couldn't help but take another look at the girl.
Yun Rongshang said: "I can't understand, and the books you read are so advanced, it must be SCI."
Li Mu: "..."
It seems reasonable.
But he felt that if he just picked up an electromagnetic textbook, it would be very profound for this girl, right?
She doesn't understand science matters.
At this time, they also reached a crossroads. Yun Rongshang pointed to a building at the end of a road, "Senior, is your dormitory over there?"
"ah?"
Li Mu was stunned for a moment and glanced at the building Yun Rongshang pointed to. It was the graduate student dormitory.
He shook his head and pointed to another intersection, where was the undergraduate male dormitory.
"I'm not a senior, unless you are from Big Zero. I'm leaving this way. Goodbye."
With that said, he walked towards the other side.
Yun Rongshang was left stunned.
What?
Not a senior, unless she is a big zero?
Is this equivalent to saying that this person is only a freshman?
