No one can escape the word "vanity", and Han Sen is no different.

With the aura of Tsinghua University, Han Sen stood on the campus of Shanghai University of Finance and Economics with a bit of a proud feeling, maybe this is the so-called "famous school complex" at work.

The IPO (initial public offering) of Xintai Crypto and Xintai Technology Manufacturing needs to wait a few days, especially Xintai Crypto, which did not choose to be listed in the United States, but was listed in China, which has an extremely important impact on the construction of the entire Huaxia stock market.

Han Sen doesn't like to do messy propaganda and the like, and this time he came to Shanghai was a "small escape" for him, escaping all kinds of things that couldn't be handled in Yanjing City.

Therefore, he chose the library of Shanghai University of Finance and Economics, but he was stopped before he entered, and the teacher at the library at the door said politely: "Sir, I'm sorry, you need a campus card to enter the library." ”

Han Sen didn't look like a student anymore, and the library teacher looked at Han Sen a little familiar, but he couldn't remember seeing it there, so he asked, "Are you our alumnus?" ”

Han Sen shook his head, he really didn't know that he needed a campus card to enter the library, the whole Tsinghua University was very "favored" to Han Sen, and he was treated preferentially in all aspects, Han Sen entered the library and said hello to the teacher at the door with a simple smile.

"Sir, you need a campus card to enter the library!"

"Ah, this, I have."

Saying that, Han Sen opened his wallet, fortunately, his Tsinghua staff card was still in the wallet, and Han Sen handed out the campus card.

The teacher of the library took the campus card, and was stunned, your Tsinghua campus card, this is to pretend to be forced by our Shanghai University of Finance, although he felt uncomfortable, but the library teacher still politely said: "You are Tsinghua~~"

But before he finished speaking, he saw the name on the campus card and was stunned: "Ah? Yes! Han, Prof. Han. ”

"Can I get in?"

"Of course, of course."

......

Discrimination, which is a phenomenon that exists in all corners of society.

Colleges and universities are no exception, and in China, the chain of discrimination against "college background" by financial practitioners is obvious.

Undergraduates from Tsinghua University and Peking University stand at the top of the chain of discrimination, and they are the first echelon. The students who graduated here stand at the top of China's financial and financial circles, guiding the country.

The second echelon is the "two finances and one trade", the Central University of Finance and Economics, the Shanghai University of Finance and Economics and the University of International Business and Economics, they are the second echelon, they are the main force in the entire Chinese financial community.

The third echelon is Shandong University, Zhejiang University, and Xiamen University...... In this way, the top regions are 985 and 211, and they have a strong regional influence in their respective regions.

Of course, the chain of discrimination here is positive, because it is open enough, and as long as you work hard enough, you can climb up and stand at the top and stand out from the crowd.

Because the exam month is approaching, the library of the entire University of Finance and Economics is full, and every student is studying hard and seriously. Therefore, they all want to make their undergraduate grades as beautiful as possible, even if they don't apply for Qingbei in the future, they will find a beautiful transcript.

Han Sen finally found an empty seat, untied his beautiful tie, folded it neatly, put it on his seat, and took out his first draft of Modern Cryptography from his backpack and corrected it.

Very comfortable feeling and fully immersed in your own academic world.

This book was written by Han Sen based on his understanding of Fermat's theorem and the number theory related to Mersenne primes, hoping to promote the development of cryptography in the world.

Writing a book is like having a baby in October, it needs to be constantly conceived. Additions and deletions, Han Sen worked hard to refine the book.

Quiet books, engrossed in it, the feeling is great.

Readers who are truly engrossed, their world is only their own, and a student sitting next to Han Sen inadvertently pushes one of his papers in front of Han Sen.

Han Sen was stunned for a moment, and then he saw the title of the paper: "On the Application of Sun-Han System in the Analysis of Partial Differential Equations"

Sun-Han is a little familiar! Isn't this TM me, Han Sen was interested, and took advantage of this student's unpreparedness to pick up this paper.

Look at the cover This is the graduation project of an undergraduate student named Zhuang Wen from the School of Mathematics of Shanghai University of Finance and Economics, a small undergraduate student who studies partial differential equations, which is a very good choice.

An unknown function has only one variable, this equation is called an ordinary differential equation, and if an unknown function corresponds to several derivatives of variables in the equation, then this differential equation is a partial differential equation.

In this way, it will be good to solve many practical problems, especially in physics and chemistry, so partial differential equations have become one of the basic tools of the entire natural science research.

If the undergraduate partial differential equation is well studied, this Zhuang Wen graduate student will have a strong advantage in taking physics, chemistry and other majors across majors.

Han Sen opened the paper, "Huh. "It's a bit spicy, this is a paper? It's full of water, parallel goods quote parallel goods, if it weren't for the fact that there are many parts written by the author himself in the paper, the idea is relatively novel, and Han Sen would have thrown it away a long time ago.

Undergraduates, there are still 108,000 miles away from scientific research, their learning purpose is not scientific research and writing papers, and teachers will not teach them how to write papers.

However, Han Sen felt that although the paper in his hand was very naïve, it could be seen from the content that the author must have put his heart into it, rather than simply putting it together to make something that looked noble and noble, so Han Sen also had the patience to correct it.

Unlike Zhang Bin, his thinking and essay writing style are already relatively mature, and Han Sen basically doesn't point fingers, but in front of him, Han Sen really can't help it, and there are corrections everywhere.

"Hey, your paper, this, this problem is too big." After finishing the last stroke, Han Sen pushed the student next to him and spoke.

Zhuang Wen has been in a bad mood recently, he used four years of knowledge accumulation to write a paper, without citing any literature, all his own ideas, all written by himself, he is very satisfied, he feels that this paper is hanging out of the sky, he hopes to win the attention of the teacher.

But when he handed it over, his instructor just flipped through it and said with a smile: "Your name is Zhuang, Zhuang Wen, Zhuang Wen, there is a big problem with your paper?" It's not a paper at all!

First of all, you say you don't even have a quote? ”

"Here, I'll find you one, it's also from your class, you can look at him." The instructor found a paper for Zhuang Wen, and Zhuang Wen immediately recognized that this was the paper of the class leader of the same group, and Zhuang Wen knew that the class leader only took a few days to decorate this paper very beautifully.

Zhuang Wen, who wrote his dissertation seriously, was arrogantly disdainful of the squad leader's dissertation, but it was this disdainful dissertation that became his role model.

Zhuang Wen was very angry and sad, but accepted the teacher's opinion with a smile, and then, he poured a lot of parallel goods into his paper, and also pulled the banner of sen-han, but the tutor was very satisfied, but Zhuang Wen was very sad.

In fact, you can't blame his mentor, who doesn't know you, he just wants you to pass your graduation project simply.

If a tutor is seriously entangled in the undergraduate thesis, a group of students will definitely scold him for being neurotic and hate him.

For this tutor, there is no need to scold at all, if you like to write papers, the graduate school entrance examination is all thesis writing.