I'm so angry, Zhou Yu is so angry that he doesn't want to speak.

"Let's go, get out and breathe. Shen Qi stood up and walked towards the outside of the classroom.

"People with a negative 10 are not eligible to breathe. Zhou Yu'an looked out the window with blank eyes.

"If you want to open a little brother, don't embarrass yourself. Shen Qi patted Zhou Yu'an's shoulder and left.

Shen Qi paced into the grove outside the classroom, where some Peking University students were walking, reading, reading aloud, or in a daze.

Look, not far away, the pair of little brothers and sisters held books in their hands, sat back to back on the ground, read their own books, and kissed their mouths as they read.

It's so embarrassing, Shen Qi walked away quickly, and didn't forget to look back at it as he walked, this mouth kiss is so long, don't they need to ventilate?

I haven't kissed my mouth since I was so old, Xu Rui found a girl who practiced shot put, he should have kissed his mouth, right? What kind of experience is kissing his mouth? Is it really necessary to knock two Yida and then practice? Shen Qi likes to think about things at the age of seventeen or eighteen, and he underwent a high-intensity test on the first day of the math camp, which made him a little depressed.

Looking left and right, Shen Qi came to a tree.

A girl leans her back against a tree trunk and puts her hands in her jeans pockets, watching the fallen leaves flutter one by one.

"The maple leaves are the most beautiful at this time. Shen Qi walked up to the girl and said that she was Ou Ye, and she also came out to breathe.

"Oh. I can't tell whether Ou Ye's expression is happy or sad or sad, anyway, there is no expression.

"Hey, Oye, seriously, you're pretty good at calculations. "Of the twelve math test questions, Shen Qi scored 70 points, Ou Ye scored 50 points, and Ou Ye's 50 points all came from close to pure number crunching.

Oye: "Oh. ”

Shen Qi asked, "You have received special arithmetic training since you were a child, haven't you?"

Oye: "Hmm. ”

Shen Qi: "Can you say a few more words?"

Oye: "Oh. ”

It's really boring, the only girl in our math camp is actually a three-no girl, Shen Qi doesn't know how to chat happily with Ou Ye: "Which high school are you from?"

"Changlun Middle School. Ou Ye finally said a few more words.

"Changlun Middle School?" Shen Qi couldn't think of for a long time, there is such a middle school in China?

"Private. Ouye added.

"Oh, private. Shen Qixin said that China is different from the West, China's key middle schools are almost all public, of course, there are private ones, the tuition fees are very high, and all of them are foreign teachers. After graduating from private schools, most choose to go abroad to attend a university.

"Question 4, the Klein bottle you mentioned, how did it project into a circle?" Ou Ye suddenly asked, this was the longest sentence she had ever said.

Shen Qi stretched out his finger and pulled an irregular shape in the air, explaining: "Just shoot like this, and it will come out." ”

"Can you be specific?" Ouye's expression remained unchanged, but she could tell that she was eager to know the specific explanation.

Shen Qi casually picked up a short branch, squatted down, and drew in the dirt: "Look, these three concentric circles are anchor rings, which are connected by three orders, that is, a deficit of 1 or a one-dimensional Betty coefficient of 2. If two closed Riemannian surfaces are topologically of order, they have the same deficit, and by the topological equivalence of the closed surfaces, we can transition to the closed surface homomorphism, which is the original source of the Klein bottle. On the basis of Riemann's theory, Klein concocted such a strange bottle. ”

"To sum up, I will make the projective plane, which is the most complex kind of closed surface, the topology is represented as a circular field, the connection number is 1, and the deficit is 0, which is how it came about. This branch of mathematics is too esoteric and abstract, in fact, I don't know much about it, can you understand my explanation?" Shen Qi raised his head and asked.

"No, you can't. Ou Ye shook his head.

"I talked for a long time, and I spoke in vain. Shen Qi threw away the branch and stood up, even the 50-point calculator couldn't understand what he was talking about, it was really disappointing.

"You're pretty good, though I can't confirm the degree of accuracy just yet. Ou Ye turned around and walked away expressionlessly, and suddenly turned back after taking a few steps: "But one day, I will confirm it clearly." ”

"Yes, if you confirm it, please feel free to come to me. ”

"I will. ”

"Three no girls calculate Ji, she has a good skill, but her ability to understand is worrying. If you look for me, I still want to ask the mathematics professor at Peking University for advice. Shen Qi looked down at the clay patterns on the ground, topology and algebraic geometry are the most difficult to understand and abstract branches of mathematics, with his level 6 of mathematics, he has only achieved a general level of understanding, and further research and even make breakthroughs, it needs to be upgraded.

In the math camp instructor's lounge, fat instructor Sun Erxiong and thin assistant Qian Fang chatted.

Sun Erxiong took out a pack of Zhongnanhai with a point of five, took out two cigarettes, took one in his mouth, and handed one to Qian Fang.

Qian Fang waved his hand: "Professor Sun, I quit smoking." ”

"At what age do you want to quit smoking? Xiaoqian, you have graduated from graduate school for more than a year, and you will be twenty-six or seven this year. Sun Erxiong lit a cigarette and said.

"I'm ready to have a baby. "Qian Fang actually wants to smoke, thinking that in order to pass on the lineage, he still holds back his addiction to smoking.

"Yes, I'm going to be a father, it's a good thing. Well, I can't poison your new daddy either. Sun Erxiong took two bites and snuffed out the five Zhongnanhai, and asked: "Xiaoqian, what do you think of today's investigation?"

"This math camp lasts for 20 days, and you can't just look at the performance of the first day. Qian Fang flipped through the small notebook in his hand, "Of course, the reference value of the performance on the first day is greater, these students have not fully adapted to the environment when they first arrive, and the performance in the first few days is closest to their true colors." ”

"Which of the students have a deep memory for you?" asked Sun Erxiong.

Shen Qi, as soon as he entered the classroom, he carefully observed the environment, he and the boy next to him, Zhou Yu'an, whispered from time to time, but his attention never relaxed. The only exception was when Shen Qi lost his mind for a brief moment on the simple calculation problem of horses, cattle and sheep. And the mental arithmetic of the last question, Shen Qi didn't want to answer it at all. Qian Fang stared intently at the transcript in the small notebook.

"Xiao Qian, what is your preliminary evaluation of Shen Qi?"

"Shen Qi has strong logical derivation ability, is good at exploring laws in abstract concepts, and has a wide range of mathematical knowledge. ”

Sun Erxiong smiled: "Yo, the evaluation is quite high, yes, Shen Qi has learned topology by himself, I think that Shen Qi can skip several basic courses such as high generation, number points, and solution in the first and second years." Of course, there will be further evaluation in the next 19 days of written testing. ”

Qian Fang said: "Among all the subjects, I think that mathematics is the one that can best reflect the differences in individual talents, and there is no need for students who are gifted and have a certain amount of knowledge to receive basic education, wasting their time and wasting our time." ”