"Whether it's doing math problems, being a person, or talking about feelings, you need a clear logic. Especially when we study mathematics, we must be logically organized, and we must know ourselves and our opponents. Zhou Yu'an talked eloquently, "Does Shen Qi like women, and what type of woman does he like?" Let me answer the first question first, he likes women. ”

"Could it be that he likes men?" Ou Ye glanced at Zhou Yu'an, feeling that what Zhou Yu'an said was nonsense.

"What's wrong with liking men?Ou Ye, you are a highly educated person, I can't imagine that you actually discriminate against same-sex feelings?" Zhou Yu'an despised Ou Ye, "It's far away, back to the topic of women." Oye, do you know who your opponent is?"

Ouye: "What is the opponent?" ”

"You see, you just don't dare to face the reality, in fact, you grit your teeth, but deliberately pretend to be nothing, hey, why do women bother women. Zhou Yu'an shook his head and sighed.

"Nonsense. Ou Ye didn't want to listen to Zhou Yu'an's ramblings, and was ready to change seats.

"Tan Lulu is with us, she is versatile, can sing and dance, likes sports, and is good at communicating, these characteristics of hers were reflected in the golden autumn camp of Yanda, and now she has gone further, and her skills tend to be pure. Recently, Tan Lulu and Shen Qi have been very close and are popular. Zhou Yu'an finally said something dry.

Ou Ye's face was like frost, so he didn't change his seat after all, and continued to listen to Zhou Yu'an's analysis of the situation.

"I admit it, I like Tan Lulu, my fair lady and gentleman, there's nothing to be ashamed of, it's fate, not friends. ”

Zhou Yu calmly analyzed: "However, I personally think that Tan Lulu is just inflated, she is not the type that Shen Qi likes, at least most of her characteristics are not Shen Qi's appetite, and she is strong in the short term. So you can rest assured that Tan Lulu is crazy, she is crazy and makes a fuss on the surface. ”

"On paper. Ou Ye never agreed with Zhou Yu'an's words from beginning to end, except for this sentence just now.

Zhou Yu'an said to herself: "Tan Lulu can let her fend for herself, but Chen Xiaoting must be guarded against, oh, Chen Xiaoting, what you have seen is the intern reporter with a leg length of one meter eight, and she is also a famous student, she studied at Communication University." ”

"This long-legged monster is not simple, is she Shen Qi's high school classmate, or is she at the same table, the two are from the same city and the same street, have similar living habits and dietary preferences, there is no dispute between going to your house or mine during the Spring Festival. As the so-called fellow sees the fellow, his eyes are full of tears. Zhou Yu'an has his own set of theories and has become an emotional counselor.

Ou Ye suddenly became nervous, Zhou Yu'an suppressed Tan Lulu and pulled Chen Xiaoting up, and there was a bit of crooked reasoning hidden in the nonsense.

"Chen Xiaoting, the long-legged monster, has disappeared recently, but she still has medium and long-term potential, and she will be your strongest competitor in Ouye. Zhou Yu'an made a summary, in his analysis report, Chen Xiaoting may usher in a rebound in the coming period.

"Finally, I'd like to talk about you, my math classmate, Oye. Zhou Yu'an paused for a few seconds when he said this, observing Ou Ye's expression.

Ou Ye didn't speak, looking at Zhou Yu'an, she was acquiescing that Zhou Yu'an could continue to speak.

"To defeat your opponent, you have to play to your strengths and avoid your weaknesses, what are your strengths, is IQ. You and Shen Qi have a common language, this common language in mathematics, Chen Xiaoting and Tan Lulu will not be able to learn it in a lifetime. I'll send you sixteen words: IQ suppression, red sleeves add fragrance, wait for the opportunity, and win strongly. ”

Zhou Yu'an touched his chin with a smile and pointed at the country: "You help Shen Qi write papers and do projects, as long as he gets used to the presence of your constant companionship, it will be fatal." Ouye, you wait for the opportunity, but also take the initiative to create the opportunity, once the opportunity arises, you ......"

"That's it...... What's it?" Ou Ye's little face flushed.

At this time, Professor Lu from the real function class walked into the classroom, and Zhou Yu'an nodded: "Let's go to class first, you can figure out what I say yourself, personal opinions are for reference only, and you will not be responsible if you fail." ”

At the same time, in a classroom in the Object Courtyard building, Shen Qi had an argument with a student of the Object Academy.

"I don't agree with you that there are not only two possible symmetries in a triclinic lattice. Shen Qi said loudly.

"Then please state your opinion!" the students of the Monopoly Academy did not back down.

"I'll illustrate it. Shen Qi walked up to the podium and drew on the blackboard with chalk.

Crystal structure is an important part of solid-state physics, and Shen Qi is working on a mathematical physics project related to solid-state physics.

The professor of solid state physics throws out a question and asks the students in the class to discuss with each other, which is the teaching mode of the Faculty of Physics, and the seminar class system prevails.

From the perspective of intrinsic symmetry, if you start from an atom and move through a lattice unit to a corresponding atom, you will be in the same environment again. From the common silicon to the popular graphene in recent years, all have the intrinsic geometry of crystals.

Solid state physics is a basic course, which combines complex structures, low-dimensional, nano-nano, organic solids, soft matter, and living matter, and forms a more important new discipline --- condensed matter physics.

The least symmetrical three-dimensional crystal belongs to the triclinic category, and the professor asked the students to start the discussion with the triclinic crystal, and then Shen Qi debated with others.

Shen Qi drew a lattice diagram on the blackboard and said, "As shown in the figure, all the base vectors are equal in length and separated at the same angle, and this figure can have an additional symmetry, which remains unchanged by the rotation of the long diagonal in the body. ”

"Why can't you figure it out with such a simple and clear question?" Shen Qi shook his head and said.

"I ......" The student who confronted Shen Qi was speechless.

There were more than 20 students sitting in this classroom, except for Shen Qi, who was from the Academy of Mathematics, and the others were all students from the Academy of Things.

"You, don't say it. Yang Dingtian was very dissatisfied with the performance of his classmates in the Academy of Things, which was simply embarrassing.

The professor of solid-state physics played a new PowerPoint presentation and then threw out the next question: "There may be 17 different patterns for 2D to mark a lattice with symmetry, but strangely enough, we have only seen less than 7 basic patterns in our daily life, which are used to make wallpaper or fabric." If we operate symmetry in three dimensions, there are theoretically 230 different symmetries available. As shown in the figure, this is a cubic cell, please discuss it. ”

This professor is really interesting, he doesn't give lectures, he just wants us to discuss, hate each other, and hurt each other. Shen Qi was tired, he traveled a long way through a traffic light intersection to arrive at the institute to study, and just wanted to listen to a solid physics class quietly.