In the teaching building, in Tang Gaoyuan's office, a group of people chatted.

What Xu Chuan didn't expect was that in the school today, even the city leaders of Star City came over.

Although it is not as grand as Jinling's, it also expresses care for him and where to go in the future.

After all, this is a talent who has gone out from Shonan, and Star City, as the provincial capital of Shonan, naturally has to fight for it.

After Xu Chuan dealt with it, everyone dispersed, leaving two or three familiar teachers in the school alone chatting in the office.

"It's late today, do you still want to rush back? Why don't you sleep at school for one night and leave tomorrow? ”

After taking a sip of tea, Lao Tang said, It is almost five o'clock in the evening, and the car from Xingcheng to Yue County should be gone.

Xu Chuan smiled and said, "Don't bother the teacher, I've already booked a hotel." ”

"That's up to you, although there is a guest house in the school, it's definitely not as comfortable as a hotel when you sleep, anyway, your kid is not short of money now, just buy a house in Star City."

Xu Chuan scratched his head: "Let's talk about buying a house, it's a bit too early for me, and I'm still a little short of becoming a genius." ”

Old Tang smiled and continued: "Also, are you going to work hard in mathematics next?" ”

Xu Chuan nodded and said, "I will definitely go, but I don't know how far I can go." ”

"What about physics, are you ready to give up?" Old Tang asked.

Shaking his head, Xu Chuan said: "No, I have never given up physics in the past, and I will not give up, the purpose of my study of mathematics is to assist me to go further in physics, after all, mathematics and physics are not separated, and if you go deeper into physics research in the future, you will definitely be inseparable from the support of mathematics." ”

"That's right, but this time you kid proved the mathematical conjecture, you should be ready to graduate and study abroad, where are you going?" Old Tang raised his head slightly and looked at Xu Chuan.

"Princeton, after all, is a mecca for math and physics, and I'll have to go there first after the New Year, just go and experience it first."

"Huh? Swapped out so early? You haven't graduated from bachelor's degree yet, have you? Old Tang asked suspiciously.

Xu Chuan smiled shyly and said, "It's not an exchange, it's a mathematical exchange meeting over there in February, and I was invited to give an academic report on the proof of the weak weyl_berry conjecture." ”

Old Tang choked for a moment, and only said half-loudly: "Amazing!" ”

.......

After returning from Star City, Xu Chuan didn't go out again, chatting with his parents occasionally, and basically spent the rest of his time reading.

He came back from school with half a box of math books, enough for him to read the year.

A few days later, Xu Xiao also had a winter vacation, and with this little girl at home, it was a lot more lively.

"Brother, I'm back!"

Before he could get inside, Xu Xiao's voice came in from outside the building.

Hearing the voice, Xu Chuan put down the math book in his hand with a smile and went downstairs to greet him, if he didn't go down, this little girl could quarrel with him for several days.

Rubbing Xiaoxiao's head, Xu Chuan asked with a smile, "How does it feel to study in the provincial capital?" ”

"It's good, the only drawback is that there are legends of you everywhere, and the teacher will educate us with you in class, as if we are not as good as you."

Xu Xiao wrinkled his little nose and said with a disdainful expression, but his tone was full of joy.

"Then you'll have to refuel."

Xu Chuan said with a smile, his achievements in Star City No. 1 Middle School are estimated to be difficult for latecomers to break again.

On the surface, it is the gold medal of the two major competitions + the full score of the college entrance examination, but in fact, there are two papers that ordinary students do not know, the former is easy to say, it is possible to do it, but the latter is very difficult, high school, generally do not have such a large knowledge reserve to write papers.

"You're underestimating me, man, watch me break your record! I want to get a perfect score in both physical and mathematical competitions! Hmph╭(╯^╰)╮! ”

Xiaoxiao snorted and entered the room with a ponytail.

Behind him, Xu Chuan shook his head with a smile.

......

As the days passed, the flavor of the New Year gradually became stronger, and after the New Year, Xu Chuan's birthday also arrived.

On his eighteenth birthday, he was an adult, and in order to celebrate, Xu Xiao deliberately took out the 'private money' extorted from Xu Chuan and went to the town to buy a cake.

"Brother, make a wish! Make a wish! ”

In the small living room, Xu Xiao shouted excitedly, the flickering candlelight reflected on everyone's faces, and the happy and bright smiles piled up, warm and short-lived.

Xu Chuan closed his eyes with a smile and silently made a wish in his heart.

"Brother, what did you wish?"

On the side, Xu Xiao came over and asked ghostly.

"If you say it, it won't work." Xu Chuan said with a smile.

"(ˉ▽ ̄~) cut ~~, it's boring, it's time to divide the cake."

Xu Xiao cut it, turned around and picked up the plastic knife and fork with disdain, and said while cutting: "Brother is one for me, one for my mother, one for me, and one for my father, ...... for me, ok, there is one last piece left......

Xu Chuan couldn't cry or laugh, and patted the little girl's head.

"Where did you learn how to divide the cake?"

Xu Xiao said confidently: "There are children at home!" ”

......

Leisure time is always short, this year's New Year, and the usual is not much different, Chinese New Year's Eve meals, visit relatives, New Year's greetings to the village elderly, and give red envelopes to children......

The process has not changed, but it is much more lively than last year.

A home with a perfect score in the college entrance examination is worth bringing their children over for a trip to take down the education of their own children.

Even some people in other villages who are closer to the Xu family will bring their children to visit.

This made Xu's father and Xu's mother have a proud smile on their faces.

After leaving his relatives, Xu Chuan also began to pack his luggage.

Today on the 6th, I happened to take the car to Star City.

Although his booked ticket is on the eight, there is a folk custom of 'seven does not come out, eight does not return' in his hometown.

It means that you generally don't go out on the seventh day of every month, and you don't return home on the eighth day of every month.

Xu Chuan couldn't help but be jealous of these, but it didn't matter if his parents asked for it, it just so happened that he could visit his high school teacher in Star City in the seventh year of junior high school.

"Chuan'er, you must pay attention to safety when you go abroad, remember to call back when you arrive, I heard that foreign countries are very chaotic, everyone has a gun in their hands, don't quarrel with other people, don't provoke others if you have nothing to do......"

"yes, I know."

In the room, Xu's mother was tidying up Xu Chuan's clothes while nagging and explaining, and on the other hand, Xu's father also looked at it with some concern, but he didn't speak.

It was Xu Xiao, the girl, who was jumping around on the bed excitedly, and said as she jumped: "Brother, I heard that there are a lot of cheap and easy-to-use cosmetics and lipsticks in the United States, remember to bring me some back..."

However, she didn't jump for long before she was suppressed by Mother Xu and was driven back to her room to do her homework.

"Remember to call back two more times."

Before leaving, Mother Xu explained again.

Xu Chuan nodded vigorously and got on the bus to Star City.

......

visited the high school teacher, paid a visit to his old age, and under Tang Gaoyuan's persistence, he personally drove Xu Chuan to the airport.

"Pay attention to safety when you get to the United States, don't go out at night, don't go to the party, especially those who have black people, and stay away from them when you meet black people on the road......"

In the car, the old Tang Tsai carefully told him all the way, for this most proud student, although he was a little 'worried' that he ran to learn mathematics, he was still quite concerned.

On the co-pilot, Xu Chuan didn't refute anything, and listened quietly.

This is the care of the elders, although sometimes too much of this care can be very stressful.

Especially for him, life is sometimes really impermanent, and no one knows what will happen in the future.

When approaching the airport, Xu Chuancai said with a smile: "Don't worry, teacher, I'll buy a body armor to wear when I get off the plane." ”

Hearing this, Old Tang glanced at Xu Chuan, and was speechless by his untouched opening.

However, after such a break, the heavy atmosphere of separation has been reduced a lot.

.......

Bidding farewell to Mr. Tang, Xu Chuan stepped on the plane alone, sitting quietly in a familiar position by the window, staring at the scenery outside.

Traveling to Princeton from China was a hassle, and he had to transfer from Star City to Magic City, and then fly from Magic City to Philadelphia, Pennsylvania, and then from Philadelphia to Princeton.

The total flight time was more than 16 hours, and the time spent on the road was more than 24 hours.

In this case, sleeping as soon as you get on the plane is not a wise choice.

However, Xu Chuan has experience in dealing with this kind of thing, he is not panicked or excited, and because he was invited by Princeton University to give an academic report, he sat in first class, which was not crowded, and it was quite easy along the way.

But speaking of this, Xu Chuan remembered another thing.

His friend in his last life, a mathematics professor at Princeton, studied algebraic geometry, and in algebraic geometry, there is a method of studying geometric structures, which can be called geometric blasting, which is to extend a plane or space in all directions, this method is a bit like enlarging a picture and enlarging it again.

Then, on the other day, he was too focused on performing geometric equations on the plane, and he was a little raunchy, and then the lady next to him saw the "blowing up" written on the manuscript paper and suspected him of being a terrorist, thinking that he was calculating and researching some kind of explosives, and then reported it to the air police.

He was taken away for investigation and returned to the plane two hours later before taking off.....

Later, when he chatted with Xu Chuan, when he talked about this matter, he sighed a little, saying that if he was not bad at money abroad, he would try to choose first class, eat and stay or go to a more advanced place when he was flying.

Because the weighting of money will naturally filter the lows around you for you to avoid unnecessary trouble.

There is no doubt that the polarization of the United States today has become so serious that it can be said that it is two completely different countries.

The people at the bottom rely on calculators to calculate the addition and subtraction multipliers of two digits, and the top mathematics community occupies more than the average mathematical elite in the world.

......。