A genius? I just love studying.

Chapter 109 I will recommend you, teacher, to him.
11:45 AM,

After getting off the plane and walking out of Beijing Capital International Airport,
Yanbei University had already sent a bus to pick them up. An hour later, the bus entered the campus from the east gate and arrived at Building No. 2.

The staff of Yanbei University had already completed the handover with Ma Jingtang, and volunteers were already distributing material packages on the open space in front of Building 2.

The materials package mainly contains the admission ticket, activity booklet, campus map, exam stationery, etc.

After receiving the supplies package, Chen Hui and his group went to their assigned dormitories under the guidance of volunteers.

The dormitory is a three-person room, and the environment is quite nice.

After briefly checking the materials package, Chen Hui went to his desk, took out his textbook, and immersed himself in studying once again.

Chen Hui had only been reading for a short while when a chubby boy in a school uniform walked in.

He glanced around the dormitory room curiously, then approached Chen Hui, extended his hand, and said, "Hello, my name is Li Zehan, I'm from Shanghai High School, and I'm a first-year high school student this year!"

He seemed quite proud of his age, and he emphasized it again.

"Hello, my name is Chen Hui, and I come from Rongcheng No. 2 Middle School."

Chen Hui returned the smile and introduced himself.

On the way from the airport to the school, the staff of Yanbei University introduced that, in order to allow everyone to interact more, the three people in the same dormitory were all contestants from different provinces.

Of course, if you don't like this atmosphere, there are study rooms on each floor of the dormitories at Yanbei University, where contestants can study with their familiar classmates.

"Chen Hui? You're Chen Hui!"

The chubby boy stared wide-eyed at Chen Hui as if he were looking at some kind of monster.

"I heard you're also a first-year high school student this year?"

"It doesn't look like it."

"How about we make a bet?"

"If my CMO score is higher than yours, you'll have to call me Brother Han from now on."

The chubby boy was talking a lot, and Chen Hui smiled slightly without replying; he was past the age of being competitive.

"What's the point of calling me 'brother'? Why don't you take out your pocket money and bet it out?"

Just then, a tall, thin man walked into the room, dragging a suitcase, and said lazily.

"Wang Xiao, tell me honestly, did you follow me here?"

The chubby boy turned around, gave a soft snort, and said with a look of disgust.

The tall, thin man didn't even glance at him, but kept staring at Chen Hui beside him. "Hello, my name is Wang Xiao, from Zhijiang No. 4 Middle School."

"I know you!"

Before Chen Hui could introduce himself again, Wang Xiao asked, "How did you come up with the idea of ​​using Lie algebra for that problem in the preliminary round?"

Chen Hui knew he was referring to the fourth problem in the Asa preliminaries, and the other person must have also participated in the Asa preliminaries. "I thought Lie algebra was suitable, so I used it."

This answer clearly did not satisfy Wang Xiao. He quickly took out paper and pen from his bag and went to Chen Hui. "I have a group theory problem. Can you help me take a look?"

Chen Hui nodded helplessly. This wasn't asking for advice; it was clearly setting a test for him.

But he knew that if he didn't agree, he might not have any peace for the next few days.

Come on.

Chen Hui moved aside to let Wang Xiao pose the question.

Let the Lie algebra elements of SO(3) be ξ=[0,0,1]. Calculate the corresponding rotation matrix R and verify whether the following equation holds: RR^=exp(ξ∧).
After glancing at the question, Chen Hui picked up a pen and began to work out the calculations on the draft paper.

The question posed by the other party wasn't particularly difficult. Clearly, the other party wasn't trying to deliberately make things difficult for him, but rather just wanted to test his abilities.

"Hey, Wang Xiao, aren't you being a little disrespectful?"

Seeing Chen Hui and Wang Xiao's interaction, the chubby boy who had been left out started to grumble and said angrily.

"Come on, you solve this problem, and I'll call you brother from now on."

Wang Xiao didn't know Chen Hui, but he did know this chubby guy. He said this with an air of complete confidence.

Li Zehan wasn't fooled. He snorted and said, "I'm only a first-year high school student. I'm not going to study group algebra or Lie algebra. It's normal that I can't do it. If you're so capable, compete with me in CMO scores!"

"Wang Xiao, do you dare?"

"I'll bet you a hundred bucks!"

Li Zehan seemed very confident in his competitive ability, and said arrogantly.

"If you can't do it, then stay out of the way."

Wang Xiao also looked disgusted; the two of them were clearly fed up with each other. "Saving a hundred yuan isn't easy. I'm afraid you'll cry if you lose. Why don't you take your hundred yuan and buy some candy?"

"you……"

Li Zehan glared angrily, "This is outrageous!"

"Let's see who's the best on the CMO stage!"

Even when he was furious, Li Zehan showed no intention of making a move. He could raise his voice, but a gentleman uses words, not fists. Of course, this might be because he had a clear understanding of his own and Wang Xiao's fighting abilities.

Those who know the current affairs are handsome.

Wang Xiao ignored him and turned to look at Chen Hui, ready to see how Chen Hui was doing.

But all they saw was Chen Hui turning away to read a book.

That's it?

Give up just because you can't do it?
Is this the child prodigy Asai?
Wang Xiao subconsciously frowned, somewhat disappointed.

At that moment, he suddenly noticed out of the corner of his eye that the draft paper next to him was already covered with mathematical symbols.

"how is this possible?"

The next moment, Wang Xiao's expression changed.

Chen Hui has already done it!

How long has it been since?

He only spoke a few words to Li Zehan.

Furthermore, there wasn't a single unnecessary punctuation mark on the draft paper, indicating that Chen Hui's thinking was extremely clear from the beginning. This question didn't cause him any trouble at all; he handled it with ease, as effortlessly as solving a one plus one problem.

This question is indeed not difficult. It only tests some basic properties of Lie algebras and Lie groups, mapping the elements of Lie algebras to rotation matrices using the Rodriguez formula, the exponential mapping relationship between Lie groups and Lie algebras, and the construction, transpose, and multiplication verification of rotation matrices.

These are all applications of basic knowledge points.

But when he was doing this problem, it took him a full half hour to figure it out!

Wang Xiao shut his mouth and said no more. He went to his bed, tidied his things, took a book called "Lie Groups, Lie Algebras and Their Representations" to his desk, and began to study.

Ok?
Li Zehan peeked at the draft paper on Chen Hui's desk and felt dizzy and lightheaded.

He couldn't understand the question, but he could understand the change in Wang Xiao's attitude.

"Big brother!"

"From now on, you'll be my older brother!"

Li Zehan's small eyes darted around, and he stepped to Chen Hui's side, clasped his hands in a fist and solemnly said, "From now on, I will follow your lead, brother. If you tell me to go east, I will never go west!"

He knew Wang Xiao's math skills very well, and Chen Hui, who could easily shut Wang Xiao up, was even more capable.

Anyone who can make Wang Xiao suffer is his elder brother.

"Okay, then go and study!"

"Okay, big brother!"

Li Zehan clasped his hands in a fist salute again, and surprisingly, he returned to his desk, took out a stack of materials, and began to study.

However, before a minute of silence had even passed, Li Zehan leaned over again, "Boss, what are you looking at? I don't understand it. Aren't you studying for the CMO exam?"...

In the café by Weiming Lake,
Seven or eight balding middle-aged men gathered together.
"Old Ma actually led the team here personally this year; he must have something big on his mind!"

Li Jinyan, vice president of the Shanghai Mathematical Society, said something sarcastic.

As soon as these words were spoken, someone quickly said with a grin, "That's right, Rongcheng has really made a splash this year, producing a genius like Asai who ranked eighth in the preliminaries. It's fortunate that the final results haven't come out yet, otherwise, things would be in trouble."

"I don't know when the results of the Asai finals will be released, but the CMO is coming up in the next couple of days, what's the rush?"

Ma Jingtang could naturally understand his old friend's unspoken meaning: he clearly suspected that Asai had cheated in the preliminary rounds and would be exposed when the final results came out.

But he had confidence in Chen Hui, and naturally he was very confident.

"Yo yo yo!"

The others exchanged glances, all somewhat surprised.

The fact that they could gather in this small circle means they've been friends for years; otherwise, they wouldn't have spoken so freely.

Only in front of true friends can one release a moment of childlike innocence.

They knew Ma Jingtang; if the other party was so confident, then Chen Hui probably really had some real skills.

"Your Chengdu has 30 spots for the competition this year? If you ask me, there's no need for so many people to participate. You might as well give the spots to me. Our school has several promising talents who are no worse than these. It's a pity that there are limited spots. What a pity."

Having gotten the answer they wanted, everyone stopped dwelling on the topic, the president of the Zhijiang Mathematical Society joked.

"That's where you're wrong. There were two perfect scorers in the provincial competition in Rongcheng this year!"

"What's so great about a perfect score? Last year, all of them who participated got perfect scores. Our promising youngsters who didn't go also got perfect scores on last year's mock exam from Chengdu Province. But a perfect score is just the limit of this exam, not their limit."

"Why are you complaining to me? If you're so capable, then go and properly cultivate your promising talents. If you want more competition slots, that's easy. Just get better scores in the CMO than our Rong Province."

Ma Jingtang was no pushover either. He glared at him coldly, equally arrogant. He wouldn't bother with how difficult the questions in Rong Province were this year. In arguments, the most important thing is to take the initiative and not passively explain yourself to others. You'll never win that way.

"Let's make a bet on the overall CMO results. Whoever loses has to treat the old guys to a meal at Quanjude."

Excitement gleamed in the eyes of Li Jinyan, vice president of the Shanghai Mathematical Society.

If Wang Xiao were here, he would definitely think to himself, "Like father, like son," and Li Zehan's gambling nature is exactly the same as this chairman's.

"Let's not bet on the overall score, let's bet on the highest score!"

Ma Jingtang wouldn't fall for it. Mathematicians might be gamblers, but every single one of them would be an absolutely shrewd gambler.

The other party dared to make this bet, so they must have some trump cards up their sleeve. Ma Jingtang wasn't about to provoke them.

"Pah, you shameless bastard."

The others booed, "What's so great about betting on the highest score? Every year, every family has a few perfect scores. If they all get perfect scores, then they all get the highest scores. There's no real winner."

I don't think so.

At this point, another teacher spoke up, "Those two top students from Chengdu participated in the Barbary Mathematics Competition this time, and their preliminary results were quite good. They must be preparing seriously for the final. How much energy do they still have to prepare for the CMO?"

"Besides, I've heard that Yanbei University is planning to give the kids a tougher CMO this year. Why don't we give it a try?"

"You're right, then I won't gamble anymore!"

Ma Jingtang retreats bravely from the rapids and follows the good flow.

whispering sound……

Another chorus of boos erupted in the coffee shop.

……

After settling Chen Hui in, An Chengzhang quietly left Dormitory Building No. 2. He walked smoothly to the intersection of the dormitory area, then headed south along the north side of Zhongguancun Street, passing the library and Boya Tower, entering Jingchunyuan Road, and finally stopping in front of the School of Mathematics of Yanbei University.

An Chengzhang walked slowly along the way, his eyes filled with memories. Many people at Rongcheng No. 2 Middle School knew that Teacher An was a graduate student in mathematics, but they had never heard that An Chengzhang was a graduate student at Yanbei University!
After lingering in front of the School of Mathematics for an unknown period of time, An Chengzhang came to his senses and strode forward again.

Zhihua Building, 3rd floor, room 316.

"Xiao An?!"

Before An Chengzhang could even knock on the door, an old man with gray hair walked out of the office.

When the old man saw An Chengzhang, he was also stunned for a moment, and called out uncertainly.

"teacher."

An Chengzhang was also somewhat excited.

After receiving a definite answer, the old man smiled and said, "Come, come, sit down."

As he spoke, he stepped aside and led An Chengzhang into the office.

"I heard you became a middle school teacher?"

The old man asked with a smile, sat down on the sofa, and reached for the kettle.

"Yes, I went back to my hometown middle school to teach math."

An Chengzhang snatched the kettle, skillfully took out a teacup, warmed it, sprinkled in tea leaves, and brewed tea. He said somewhat embarrassedly that his teacher had originally hoped he would do scientific research and make some achievements in mathematics.

"That's fine too!"

The old man leaned back steadily on the sofa. At his age, he had no more obsessions. "Teaching and nurturing future pillars of society is equally a great responsibility and of great significance!"

"You wouldn't happen to be here leading a team to participate in the CMO, would you?"

The old man suddenly remembered the math Olympiad summer camp that was starting the day after tomorrow, and then, thinking of An Chengzhang's identity as a middle school teacher, he suddenly realized something.

"Ah."

An Chengzhang nodded, surprised that his teacher was still so quick-witted at his age.

"Hahaha……"

The old man burst into laughter, "All the students I've taught are top-notch teachers!"

An Chengzhang also laughed happily. Seeing that his teacher didn't seem to mind at all, he relaxed a lot.

"Chengdu is a strong province in competitions, what promising talents do you have this time?"

Since the topic of CMOs had come up, the old man continued the conversation.

This hit the nail on the head. An Chengzhang's smile widened. "Teacher, have you heard that a high school student from Rongcheng got eighth place in the preliminary round of the A-Sai competition a few days ago?"

"I taught them!"

An Chengzhang revealed a proud expression with a reserved demeanor.

If he hadn't taught such a promising student, An Chengzhang felt he might never have the face to see his teacher again.

"A Sai, eighth in the preliminaries? A high school student!"

The old man was somewhat surprised, as he had never heard of it before, but he had heard of Asai and had a general understanding of the difficulty of the competition.

"That's a really good prospect!"

“He will definitely choose Yanbei University first. If you want to take on a last disciple, I can recommend you to him.”

As soon as An Chengzhang finished speaking, he suddenly felt that something was wrong, as if he had reversed the Heavenly Stems and Earthly Branches.

The old man didn't mind at all, and said with a smile, "Alright then, I'd like to see this young genius."

That being said, he still has to wait for the CMO results to come out first.

According to An Chengzhang, that kid should have no problem getting into the top 60 of the CMO, only then can they be selected between Tsinghua and Peking University.

But at his age, he's no longer interested in taking on apprentices. Unless they are truly exceptionally talented, he's too lazy to accept them.

If it's just the top 60 CMOs, it seems a bit lacking.

(End of this chapter)