Books have become a daily necessity for Otogawa, and it is uncomfortable to read it for a day.

Reading books and studying mathematics during the day to open up the brain, which is the most fundamental and most important, is related to the opening of the black technology system, and has to spend a lot of energy.

It's like building a house, if the foundation is not solid, no matter how beautiful the house is, it can't withstand the ravages of a typhoon.

Wool to obtain energy points, this is an auxiliary, and the final energy points are not all used in the black technology system.

You can't put the cart before the horse.

Moreover, only when it gets dark will those cow ghosts and snake gods come out!

The midnight game is very much in line with Xiao Yi's appetite.

Maybe in the future, it will be expanded to supernatural games such as Pen Fairy, Bloody Mary, Mirror Witch, etc., if you can get power points.

And during the day, let's go to the library!

Even if the school is closed in July, the library will still be open regularly, but there is no campus card, which makes Yi Xiaochuan a little annoyed.

Live and learn.

The ancients said that there are thousands of Zhongsu in the book, there is a golden house in the book, Yan Ruyu is in the book, there is black technology in the body, and knowledge is strength.

Yi Xiaochuan was originally a scumbag, but after many days of systematic transformation, he has become completely obsessed with learning.

Brushing books is addictive, especially when you see a little change in experience points, there is a thrill of fighting monsters and upgrading.

Compared with before the math was upgraded, Otogawa basically doesn't need to consume energy to read books, and he can enter a shallow state of concentration by his will.

Of course, this effect is not comparable with opening the "Entry", and the efficiency is slightly insufficient.

In one morning, the experience point was only pushed from 1% to 3%, and the progress was worrying.

At noon, the library was going to be closed, from 12 o'clock to 14:30, this meal took Xiao Yi more than half an hour, around the three canteens, and his stomach was finally satisfied.

Originally, if I had a dormitory, I could take a nap, but now, I'm just wandering around.

The weather at the end of June definitely doesn't want to spend an extra minute outside.

Xiao Yi is no exception, he can't help it when it's hot, so he buries his head in a shady building.

"Well, it seems that I really have a relationship with mathematics!"

Maybe I can meet professors from several colleges, and I can ask for advice, no matter what, my Xiaoyi is not what it used to be now.

At this time, a young man with a somewhat worrying hairline walked in from outside, sweating profusely, carrying a boxed lunch in his hand, plus a bottle of iced Coke, and his eyes were bloodshot.

walked up to Xiao Yi, was slightly stunned for a moment, and then said uncertainly: "Classmate, aren't you Zhang Lisong's roommate?"

"Huh?!" Xiao Yi's gaze retracted from the portrait of a mathematician on the wall, and the hairline of the young man in front of him was really close to the figure in the portrait.

"Yes, I'm Zhang Lisong's roommate, you...... Oh, you're his fellow student! You're a graduate student in the School of Mathematics, two years older than us, and we've met ......."

"It's hot outside, come in and sit down, come, drink water!" As he spoke, the senior brother who was really eye-catching with his hairline handed over the ice cola in his hand.

Xiao Yi immediately waved his hand and said, "Senior brother, you're polite, I just ...... full."

In the end, Senior Brother Hairline took a disposable paper cup, poured a glass of Coke and handed it to Xiao Yi, and then gobbled up the meal while chatting.

"You don't know...... Senior Brother Hairline swallowed his meal, grabbed his hair, and complained in a low voice: "My boss is going to drive me crazy! Throw me a few books of analytic number theory, saying that if I don't learn something in the direction of prime numbers, and if I don't pass his assessment, I may ...... next year No, I will definitely not be able to finish my studies! I, Zheng Hui, think that I have also worked hard in the past two years, and have brought a lot of economic benefits to my boss, so how can this be? If I have the ability to study basic mathematics, what else will I do as a graduate student here, and I will take the 211 and 985 exams early......

Yi Xiaochuan blinked, looking at the hair on the top of his head, if he grabbed it again, would he be really bald?

"Well, if I'm not mistaken, isn't the direction of my graduate student financial mathematics? What are you doing in basic mathematics?

It is unrealistic for a second-rate science and engineering school, a master's student majoring in mathematics, to devote himself to the study of basic mathematics, and no one will apply for the examination, because employment is really worrisome, and the tutor may not necessarily have the research results that can be taken.

But financial math is different.

This is an emerging interdisciplinary discipline of finance and mathematics, and the biggest feature of this discipline is the use of mathematical models to explain and study financial problems.

It sounds like a tall one, dealing with money and finance, can you still be poor in money?

"What can I do? The boss personally gave the order with a serious face, the company's projects were stopped, and even gave us classes every day, assigned homework, and corrected it in person, the sun really has to come out of the west...... Alas, I can only gnaw slowly, there is still a year, I hope it can be passed!" Senior Brother Hairline threw the disposable lunch box into the trash, and then took out a large copy of "Fundamentals of Analytic Number Theory" from the table, with a look of lovelessness.

Xiao Yi glanced at it, Fundamentals of Analytic Number Theory (Second Edition), Harbin Institute of Technology Press, Author: (Russia) Karachuba, Translators: Pan Chengbiao, Zhang Nanyue.

It's the same book I'm reading now.

Yi Xiaochuan had a lot of doubts in his heart, the professor of the Academy of Sciences was so abnormal, it couldn't be related to this aura revival and evolutionary awakening, right?

Absolutely.

In macroeconomic regulation and control, the state may have to focus on transcendent research.

And the foundation of all disciplines is mathematics.

Every time there is a major breakthrough in mathematics and a mathematical problem is overcome, it is unimaginable for the improvement of the entire science and technology.

Xiao Yi also studied mathematics alone for several days, and today I met a graduate student from the School of Mathematics, and I felt that I could verify what level of knowledge I am at now.

"Senior brother, do you have any research on the circle method?"

Why？

Senior Brother Zheng didn't come back to his senses, you are from the School of Biochemistry, and you asked me what research I have on the circle method?

I'm just complaining! venting is good for the body and mind, and what are you doing studying the circle method......

Xiao Yi blinked in confusion, and said uncertainly: "The three important methods of analytic number theory, the complex integral method, the circle method and the trigonometric sum method, I am studying the circle method, and there are a few doubts among them, can the senior brother give some advice?"

"Hiccup......" Senior Brother Zheng hiccuped, feeling that a graduate student of the School of Mathematics asked himself about the circle method, it shouldn't be too profound, but my brother is also good-looking!

What if I make a mistake?

Looking at Xiao Yi's sincere expression, Senior Brother Zheng nodded and said, "Tell me, the circle method is an important method for studying number theory, although I have just started, but the problems of ordinary undergraduates are not difficult for me......"

Otogawa took out a blank piece of paper from the table, took a pen and said, "In analytic number theory, we often use the so-called Merlin transform, which is actually another way to write the Laplace transform. If we consider the Merlin transform of the product of Gaussian and trigonometric functions, we get what is known as the parabolic cylindrical function. I don't know much about it, and I can know some asymptotic estimates, but there are no clear constants, and there are no clear error terms...... How to use the circle method to study this problem, my idea is......"

Looking at the formula written smoothly by the tip of Xiao Yi's pen, the graduate student of the School of Mathematics was already confused......

What am I doing?

What are you doing?

Xiao Yi looked up at the senior's expression, stopped his pen, coughed lightly, and said, "This, I don't know what senior brother has about the distribution of prime numbers?"

“......”

Fine beads of sweat gathered together on the smooth door of the head, forming a sweat droplet, and the grunt slipped from the corner of the eye like a crystal teardrop!