"You add me to WeChat, this chat is inconvenient. ”

Seeing the other party's information, Liu Fei frowned, it was fine just now, but now it is inconvenient.

Why are you inconvenient for so many days a month?

"No, it's troublesome, I'll go back and ask someone else. Liu Fei replied and threw the phone aside.

Combined with the topic just now, he found some feelings, Liu Fei didn't want to waste precious time.

After receiving Liu Fei's reply, Li Qiang had a grievance on his face, and he smiled in his heart.

Seeing Leng Daba's attitude, he was obviously interested in the mathematical talent of a garbage man, but fortunately, the silk refused to be Lisuo, so that the two had no chance to get in touch.

Silly criticism, you never know what you missed, Li Qiang couldn't help but laugh.

Leng Bingqing returned the phone to Li Qiang with a blank face.

"Actually, he doesn't like to study very much, so he guesses he's playing with me, and I haven't seen him read a book. Li Qiang blackened Liu Fei without a trace.

……

Liu Fei found that the biggest benefit of perverted high school mathematics is that it has brought him a solid foundation in mathematics.

Although the difficulty has increased dramatically, it is easier to learn without the influence of the use of Reiki.

Of course, easy does not mean that it can be made casually, and this kind of theoretical thing is far less rapid than the beneficial progress of opening the book.

Liu Fei originally wanted to ask Li Qiang, which teacher at Hangzhou Normal University had better scores, and if he was fine, he would like to go to a class and listen to it.

However, thinking about the fact that relatives are always yin and yang when they speak, it is uncomfortable to listen, so it is still reliable to find a weak qi scholar.

Physics majors, especially theoretical physics, have a large number of disciplines that intersect with mathematics, and Liu Fei received a reply as soon as he sent out WeChat, saying that a good teacher in mathematics is a strange professor in the mathematics department, and he is famous for his strange temper.

Calculating the time, he should be in class right now.

Liu Fei then received a class schedule, and sure enough, the second class had already begun. Liu Fei thought about it and had to go.

It's good to be familiar with the professor if you can't learn something, and you will inevitably come to the mathematics department to take classes in the future.

The school building of the school of mathematics was in the southernmost part of the campus, and it took Liu Fei about eight minutes to reach the place by trotting all the way.

The great god in the classroom was spitting and lecturing, and Liu Fei bent down and slipped in quietly through the back door, casually finding a place to sit down at the back.

It happened that the above talked about 'derivatives and differentiation', Liu Fei quickly took out his notebook, and this was the focus of his study.

Blame the professor for not seeing it, the level is still quite good.

Theoretical things are most afraid of going deep and making people scratch their heads, but he can explain them in a relatively simple way.

Liu Fei couldn't help but think of Mr. Wang Enzhang, listening to this genius's lecture took a lot of effort, always this question is a score question, that question is a score question, all of them are send points, okay?

Liu Fei flipped through the exercise book while listening, and some places were still difficult to understand.

"This is the difficulty of the Putnam competition A5B5, and to make it, you need to start with set theory. Just as he was hesitating, a cold voice came from next to Liu Fei and startled him.

Liu Fei looked over, huh!

Sure enough, it was learning that made my soul ferry, and there was such a big beauty sitting next to me, and I didn't see it!

I'm afraid it's on par with Su Yan's eldest cousin, right?

The other party seemed to just remind him casually, and after speaking, he lowered his head and began to do the question, looking at the thick stack of straw paper, I wonder if he is really a scholar.

Liu Fei suddenly had a feeling of being the same kind of person, the same scholar, the same outstanding appearance, how could there be such a perfect person in the world?

The Putnam competition is one of the three mainstream competitions of the world's collegiate mathematics school, and even those who have not gone to college have heard of it.

This competition is divided into two modules: theoretical and academic, and academics needless to say, they must be stronger than whom.

Theoretically, it is a more traditional test paper answer.

From A1B1 to A6B6, the difficulty of the questions rises in a stepwise manner, and the later the questions become more perverted. If this question is at the A5B5 level, it's no wonder that it can't be done.

Liu Fei has just started to study now, and his knowledge system is still very imperfect, such as set theory, he has not even seen how to do it.

Liu Fei thought about it and had to find relatives for this matter, so he sent a WeChat message to Li Qiang. "Brother Qiang, what can I introduce to the book of set theory, online, etc., urgently. ”

Li Qiang returned to the front after class, and he was unprecedentedly happy that he didn't receive Liu Fei's harassment for most of the class.

As a result, this happiness still failed to last to the end, and Li Qiang sighed, what kind of sin did he do.

Seeing Liu Fei's question, Li Qiang was furious. Yesterday advanced algebra, today mathematical analysis, and in the afternoon changed set theory, Lao Tzu is a young scholar who has not finished his freshman year, and he has to spare most of his time to study Reiki knowledge, where is the time to study so many basic theories.

Li Qiang brushed back and replied that he didn't know.

He decided, and when he went back, he told Director Tong that he couldn't serve this garbage, it was too annoying.

Theory is of course important, but if you want to become a war scholar, you have to make trade-offs, and not everyone has the strength to be a cold university hegemon to take both.

Thinking of Xueba, Li Qiang remembered the beautiful interaction in the previous class, he threw the pen to the ground, bent down to pick it up, and then pretended to turn back unintentionally.

As a qualified licking dog, it is a necessary skill to peep at the goddess in various positions during class.

Just at this glance, Li Qiang almost spurted blood!

When did that garbage come to the classroom and still sit next to the goddess?

Was it an exposure or an accident?

Liu Fei was bowing his head to do the question, but he didn't see Li Qiang.

Similarly, Liu Fei and Leng Daba don't seem to have much communication.

Li Qiang kept beating the drum in his heart, it must have been an accident, it must have been an accident, the two didn't know each other at all.

Not to mention Li Qiang's thousands of turns, Liu Fei didn't get a response and tried to do it for a while and found that he was not stuck in the set verification, if he could master this knowledge point, it should be possible to verify it down.

After thinking about it, I had to be cheeky to ask questions to the beautiful woman next to me.

"Senior sister, I haven't studied set theory, do you have any information on this?"

Liu Fei, the old driver, pretended to be a new look.

Leng Bingqing glanced at Liu Fei strangely, why are they all freshmen, why do they call themselves senior sisters.

She handed the stack of straw paper to Liu Fei and said lightly: "I didn't bring the textbook, but it just so happens that I am also doing this question, you can take a look at it first." ”

"What a coincidence. Liu Fei smiled and quickly took it.

This cold-looking beautiful girl has a very delicate handwriting, although the calculation process above is complicated, but the logic is very clear, especially the proof of set theory is very complete, even if Liu Fei has not learned this, he can basically understand what she wants to express.

Sure enough, this is a top student!

I don't know why, Liu Fei always feels that this way of thinking is a little familiar, as if he has seen it somewhere.