Zheng Xiwen almost rushed into his office, and then quickly wrote down all the symbols in the formula in his mind with his memory.

I have to say that the explanation of nurturing metaphors is still very useful.

Although he still doesn't understand the meaning of these formulas very well, he can at least read the symbols and knows what these symbols mean.

For example, what belongs to, modal projection operators, modal connections, traces, norms, etc.

For a moment, Zheng Xiwen even felt like he was showing off his face by mathematics at such a big age.

If he could remember so many mathematical formulas when he was in high school, he might have been able to go to Huaqing and Yanbei. Unfortunately, there is no if in life.

I recorded all the more than ten formulas with paper and pen, and carefully checked them twice to confirm that they were exactly the same as in my memory.

Zheng Xiwen breathed a sigh of relief.

The reason why I don’t use a computer is naturally because he only remembers many mathematical symbols and doesn’t know how to type them out using the input method.

Fortunately, these people who undertake important security tasks also have high requirements for memory. So Lao Zheng's memory is actually pretty good. At least even if Qiao Yu really smashed all the formulas, he is now considered a copy.

However, Zheng Xiwen did not stop there. Instead, he recorded Qiao Yu's explanations as much as possible based on his memory.

Although theoretically speaking, having these formulas is enough, if these explanations are available, I would like to make those big guys understand faster.

Otherwise, if Qiao Yu really didn't explain it to the outside world, he thought it would be quite laborious for mathematicians to understand these formulas.

He has been with Qiao Yu for so long and has seen too much of this situation.

It can only be said that the gap between mathematicians and mathematicians is also very big.

This is actually the same as taking a math class when I was a child. The teacher has broken a sample question and explained it many times, but when the exam is changed, some students still don’t know how to do it.

After doing this, Zheng Xiwen returned to Qiao Yu's office.

He also looked at Qiao Yu's desk in particular. Sure enough, the manuscript paper that had just been written full of formulas was gone. There were fresh shredded paper shreds in the shredder next to him.

"Did you remember it all?" Qiao Yu leaned on the chair, rubbed his temples, and asked casually.

"I have written down all the formulas. I don't remember all your explanations very well." Zheng Xiwen answered honestly.

"Haha, actually, just write down the formula. Most mathematical theorems can be expressed in mathematical expressions.

No other text is needed.

Because the essence of mathematical theorem is a statement of the relationship between mathematical objects. Therefore, mathematical language is a powerful and universal language, and those explanations only make it easier for learners to understand those meanings.

However, when you spread, remember to mark all mathematical symbols in the formula to understand them through a generalized modal axiom system."

Qiao Yu casually explained some basic concepts to Zheng Xiwen.

To solve a certain mathematical problem, he no longer had the initial excitement of wanting to announce it to the whole world.

Even the happiness of solving difficult problems itself is getting less and less. Sometimes Qiao Yu himself is also reviewing, but unfortunately, he really does not regard mathematics as a lifelong pursuit, even though many people hope that he can do this.

"By the way, what did you come to me just now?" After saying that, Qiao Yu asked again.

Generally speaking, Zheng Xiwen would not disturb Qiao Yu when he was fine. Unless there was an emergency, or if there was news about what Qiao Yu had told him before.

This time, obviously, will be no exception.

"Richard's family and the crew have arrived in Beijing. Currently, check-in is arranged to be in a hotel near the Aerospace City.

According to the arrangement, Richard and his eldest son will start training at the Astronaut Huaxia Research and Training Center the day after tomorrow.

You said before that they would notify you when they arrived in China. It depends on what time you plan to meet them."

Zheng Xiwen spoke and reported.

Hearing these words, Qiao Yu immediately became energetic and asked, "Is there anything special about me tomorrow?"

Zheng Xiwen thought about it for a while, and then said honestly: "It should be nothing."

All the smart guys Qiao Yu understood Zheng Xiwen's meaning in seconds. So he said enthusiastically: "Then don't talk about those formulas everywhere today. Wait until I've seen Richard and Thomas tomorrow before I'll talk. I'll teach them a good class."

Zheng Xiwen nodded and agreed readily. He obviously didn't talk about mathematics when he was in class with these two people.

Young people always have inexplicable confidence in what they are not good at.

"Then I will be enough for two hours from 9:00 to 11:00 tomorrow morning?"

Qiao Yu shook his head and said, "It's better to wait until twelve o'clock, and I'll treat them to a meal."

Zheng Xiwen nodded silently.

Qiao Yu was interested in giving people more than three hours of class for the first time, but he still had to support him.

After all, he was not so active in leading math students. He really practiced the tradition of a tutor leading him to practice and look at his personal life.

Zheng Xiwen still remembers that the first batch of Bodi students recruited by Qiao Yu said this when he first met.

"Students, you need to think about why both Shuotu and Botu are all graduate students with the full name and suffix? Because you are on this path for research.

Research is actually a very self-centered thing. There is actually a tradition in our mathematics community, that is, the number of times the tutors and students do not need to be so many times.

It is enough to meet each time you choose a topic, and it is enough to meet at the end of the topic. The intermediate process requires you to think and study—"

Then Qiao Yu was called to the wolf by Mr. Yuan and scolded him. Then he was educated by Tian Yanzhen for a long time before he became honest.

Thinking of this, Zheng Xiwen only felt Xishu.

When he read Qiao Yu's information, there was a time when he was participating in the International Mathematical Olympiad competition and he took a group of contestants to play games in the hotel...—·

I thought it was incredible at that time, but at that time I thought it was very Qiao Yu.

The randomness of genes makes it impossible for the world to be fair. There are always some people who can succeed no matter what they do. Even if they are not so interested in things.

"Okay, just inform them like this. I'm going to prepare too." Qiao Yu said excitedly.

For the Richards, the first day he arrived was also very excited.

Although the planes over ten hours are exhausting, there are cars to pick them up and drop them off throughout the journey. It is really important to say how hard it is.

Especially the three children, who were very curious about everything outside the car window when they went abroad for the first time.

With the time difference, it was already past two o'clock in the morning when the plane landed in Beijing.

Then I settled in the hotel, and after only a few hours of sleep, the whole family woke up and enjoyed the hotel breakfast.

Accompanied by the reception staff, I walked around the hotel.

The hotel is located next to the Huaxia Astronaut Center. Outside, it is the spacious and neat Beiqing Road, not far from the famous Old Summer Palace, Huaqing and Yanbei University.

Of course, the distance here is calculated based on the size of the capital. After all, they are all in the same district.

"Look, this is the real China! Now it's certain that we have been deceived in the past."

Walking on the street and looking at the traffic during the morning rush hour, Richard sighed to his wife.

"It's so quiet here! There are so many cars, so quiet! It's so amazing!" The wife also agreed.

Well, in fact, for any Chinese, I would not think that the road at rush hour will be very quiet.

But for these outsiders, there is no frequent sound of horns or the roar of large-displacement car engines, it is already very quiet.

Especially due to the limitations of numbers and other reasons, electric vehicles in Huaxia Jingcheng are far more popular than other cities.

In addition, this is a prohibited whistle area, which shocked several foreigners who just arrived.

"It's amazing! By the way, can we go to Huaqing or Yanbei University to see it? I heard from the teacher that the campuses of Huaqing and Yanbei are both beautiful."

Thomas suggested.

"Of course." The receptionist who was specifically responsible for the family's affairs in China immediately agreed to the proposal and looked at the head of the family Richard.

"Is this far away from Huaqing University or Yanbei University?"

Richard asked.

"It's not far away. If you arrange a car now, you can get to Huaqing and Yanbei in about fifty minutes. And the two schools are next to each other."

"If it's convenient, then go and have a look!" Richard looked at Thomas indulgently. This child was his hope.

After seeing the capital of Huaxia, he hoped that his eldest son would come to study abroad.

Huaqing campus is very large.

Although it is summer vacation, the campus is not deserted.

There are still crowds of people on the playground next to the Bauhinia Apartment. Those who play football, tennis, and basketball are——”

The two-story teaching building hidden in the shade of green highlights the history of this university. The newly built high-rise teaching building is full of modernity.

Just a quick look, Thomas fell in love with this place.

"Actually, Yanbei University is more beautiful, with Weiming Lake and Boya Tower there. Huaqing is actually that way. Especially Huaqing Pool, you just saw it, it was actually a small puddle.

If Huaqing University is better than Yanbei University, Academician Qiao Yu would not stay mainly at Yanbei University."

Obviously, the reception staff are likely to graduate from Yanbei. They commented on Xiqiu Road next to Qiuzhai.

Thomas was about to ask about Qiao Yu when the receptionist's cell phone suddenly rang.

After a few simple words of Chinese that they couldn't understand, the receptionist hung up the phone, then looked at Richard and said to Thomas with joy, "Good news, the company just informed me that Academician Qiao decided to see you at the office of Yanbei International Mathematical Research Center at 9 o'clock tomorrow morning. You are so lucky!"

"Oh my God, is it really? That's great!" Thomas said happily first.
To be continued...