Flipping through the book and looking at the numbers and formulas he was once familiar with, Xiao Yi was in a slight trance, as if he had returned to the old days, back to the old days when he was learning these things.

But soon, Xiao Yi collected his mind and began to devote himself to the study of this knowledge.

"The so-called function ......"

As the mathematical concepts and theorems in the books gradually entered his mind, Xiao Yi's spirit became more and more focused, and gradually, the whole person was completely immersed in it and studied seriously.

……………………………………

And just when Xiao Yi was sitting in the corner of the library, completely immersed in the world of mathematics and the formulas one by one, two sturdy men appeared at the door of the classroom where his class was taking.

The two men looked to be more than 1.8 meters, and each of them was very strong, with pieces of hard muscles on their bodies, which looked extremely scary.

As soon as the figures of the two appeared at the door of the classroom, they immediately attracted the attention of the students in the classroom, in fact, it was difficult not to notice the appearance of two conspicuous people at the door of the classroom.

As for the stares of those students, the two of them also ignored them, just stood at the door, their eyes kept scanning the people in the classroom, and the people who came to the class one after another, as if they were looking for someone.

The two of them looked fierce, obviously not very friendly, as if they were looking for trouble, which made many students in the classroom feel a burst of hair. They were a little worried that these two people were going to get them into trouble.

But fortunately, it wasn't until the bell rang for class. Neither of them entered the classroom, nor did they call anyone out. And it doesn't look like they've found what they're looking for.

And although the two have always been very arrogant and don't pay attention to the students in the classroom at all, when the teacher appeared at the door of the classroom, the two didn't dare to stay there, so they left honestly.

It's just that the two of them didn't go far, but turned to the corner of the corridor, and continued to patrol the classroom door in front of them.

……………………………………

As the saying goes, after carefully reviewing the basic subjects, Xiao Yi really felt the meaning of this sentence.

A morning of time. Looking at four textbooks, maybe for ordinary people, even if it is a review, it is impossible, but Xiao Yi really read all four books completely.

It's not just a cursory glance, but every formula, there is a serious recall, to think about, is the real knowledge. I comprehended them all and really remembered them.

Looking through it this time, not only the once familiar formulas were in his mind again. It became clear and familiar, and the knowledge that had been forgotten in the corners of his memory reappeared clearly in his mind again. And, revisit those formulas. Xiao Yi really has a lot of new realizations.

A lot of formulas, when thinking again. He had a feeling of enlightenment, feeling that these formulas could be understood from another angle, or that there was such a truth in these formulas, and that in the process of argumentation and derivation of these formulas, there were such mathematical ideas that he had never thought of before.

This kind of realization made Xiao Yi feel physically and mentally happy.

Whether it is practice, or learning mathematics, or learning chess, or some other new knowledge, this feeling of learning new things and new knowledge always makes Xiao Yi feel very happy.

In the last century, a great mathematician Russell once said that the thirst for knowledge is one of the three major motivations for his survival, from the bones, Xiao Yi and Russell are the same kind of people, but also a person who loves to learn very much, as long as he has time and time, he will be willing to learn some unknown things that he is interested in.

Until he walked out of the library, Xiao Yi was still immersed in the joy of that kind of knowledge.

If he hadn't met his best 'roommate', Xiao Yi's good mood would have continued, and perhaps, today would have been an extremely pleasant day for him.

But there are no ifs in reality.

According to Xiao Yi's plan and plan, he went to the school cafeteria to eat something at noon, and then continued to go to the library in the afternoon to start reviewing other subjects, but as the saying goes, plans can't keep up with changes.

He had just come out of the library and had barely walked a few steps before he was almost bumped in.

Originally, it stands to reason that with Xiao Yi's strength, Xiao Yi would not be able to be hit by someone, but when he was the youngest, Xiao Yi's mind was relatively relaxed, and he had just come out of the library, and his mood was also in a state of joy and relaxation, so he didn't pay too much attention to it, plus the other party was an electric car, which was originally relatively small, and the car rushed out from a branch road on the side.

But even so, Xiao Yi still subconsciously avoided it at the moment when he was about to be bumped into someone.

Xiao Yi, who was almost hit, frowned just now, and before he could speak, he heard an extremely arrogant voice sound, "You don't have fucking eyes." ”

Well?

Why does this arrogant voice sound familiar?

Hearing these words, Xiao Yi's brows suddenly furrowed, and his eyes subconsciously raised and looked ahead.

This time he raised his head, Xiao Yi couldn't help but be stunned.

The guy in front of him who was wearing a designer sportswear and riding an extremely cool electric car was not the best 'roommate' he met in the dormitory yesterday?

It's really not like they don't get together, hehe.

We only met yesterday, and we met again today.

After seeing the identity of the person in front of him clearly, the corners of Xiao Yi's mouth immediately appeared with a sneer.

The boy riding the electric car is Xiao Yi's roommate yesterday, named Liu Wei, like Xiao Yi, a junior at the School of Mathematics of Z University.

The moment he saw Xiao Yi's face clearly, Liu Wei was also stunned, and he also didn't expect that this guy who almost caused him to fall and scared him into a cold sweat turned out to be the bastard named Xiao Yi yesterday.

It took him a while to come back to his senses, and after coming back to his senses, the anger in his heart ignited straight up.

It's this damn bastard again! (To be continued......)