My Sister is a Big Star

Qin Ze looked in from the door. This classroom was no different from an ordinary classroom, except that the tables and chairs had been cleared to the back of the classroom, leaving only four or five desks with notebooks on them. The students in front of the desks either looked up, or He is doing his own thing without distraction. Professor Li is in his fifties, with gray temples, splayed eyebrows, and a pair of rustic round-rimmed glasses. He looks like a very serious and difficult old scholar.

He looked away from the computer and turned his head to look: "Come in."

Qin Ze nodded and walked to the podium.

Professor Li supported the frame of the mirror and looked at Qin Ze: "I'm a junior this year, and it's time for an internship in the second half of next year."

"Yes, that's why I want to train myself in advance." After Qin Ze finished speaking, he suddenly found that he didn't feel any nervousness. According to his past peeing habits, under the sharp eyes of the professor, not to mention his legs trembling, he should He might be a bit cautious, but he was very calm in his heart, so calm that even surprised himself.

Professor Li nodded, "Although your father has greeted me, but let's discuss the matter as it stands, and there must be some assessments."

He took out a stack of A4 papers from the drawer, on which there were many topics listed, picked out a few, and handed them to Qin Ze: "This is a small part of the topics in this numerical model, which is relatively simple and easy, you can take it and have a look." , I will give you two hours, you can choose two questions at will, and calculate the analytical equation. Xiao Liu, give him a pen."

The female student who opened the door immediately handed over a pen.

Qin Ze didn't talk nonsense. He looked around and found that there were no extra seats, so he went to the back row of the classroom and moved a desk out by himself. He moved lightly and tried not to make too much noise.

Qin Zepu calculated the equation on the draft paper, and sometimes looked at the content of the subject. Several times he saw that he had to calculate the complete equation, but had to start over and over again.

Mathematical modeling is a very profound knowledge, but what he is doing now is not even counted as mathematical modeling, it is just a small step in the 25,000-mile long march. Mathematical modeling, also known as mathematical modeling, is essentially an important means of using mathematical tools to solve practical problems. To put it more simply, it is to use mathematical language and methods to establish "equations" for certain events and phenomena. For example, if a mathematician wants to predict the weather, he can collect data, build a huge numerical model, and use the numerical model to predict tomorrow's weather.

Of course, this is just a metaphor. The real weather forecast is far more complicated than this. But in fact, the weather bureau is a huge mathematical model.

Economics and mathematics are inseparable, and mathematical modeling is one of the most extensive applications.

Qin Ze calculated for half an hour, his forehead gradually sweating, and finally found the right direction. Or the foundation of mathematics is too shallow, and many formulas have to be racked to remember. If Qin Baobao was here, he would have hummed twice, pushed Qin Ze on the head and said, "You fuck my old lady, it will be done in minutes."

It is said that men are born with strong logic and women are born with sensibility, so men are strong in science and women are good in liberal arts. But this rule is completely reversed for the Qin family siblings. Qin Baobao has been top-notch in mathematics since he was a child, and his grades have never fallen out of the top three. He claims to be the queen of science. Qin Ze was better at liberal arts, and his most brilliant achievement was winning the third prize in the National Composition Competition for Middle School Students that year.

Fortunately, he knew that he was not a smart person, he could make up for his weakness with diligence, and he did not give up on himself, so he was not stumped by the two questions that could block 50% of college students in finance.

Time flies, and with the assistance of his assistants, Professor Li pushes forward the progress of the modeling little by little, and holds small meetings from time to time, but these have nothing to do with Qin Ze.

Two hours later, Professor Li seemed to think of Qin Zelai. He walked off the podium and came to his desk without saying a word. He picked up his paper and read it. The answer to the equation was written on the white paper. I like it meticulously. Look at the draft paper again, paint and change, the calculation formulas are densely packed, without any blank space. Qin Ze's mathematics was trained by the old man.

"It's okay!" Professor Li nodded, put the paper back on the table,

Turning around and walking back to the podium, "Everyone stop what they are doing."

Five or six assistants raised their heads.

"I would like to introduce a new member to everyone, Qin Ze, your junior from Class 7 of the Finance Department."

Qin Ze stood up and said politely, "Please take care of me."

Sparse applause.

Professor Li said again: "Yang Chen, you should take your junior brother with you these few days and let him figure out our project this morning. I have classes later, so I'm leaving first."

A boy in a blue T-shirt and light white slacks nodded with a smile on his face: "Got it, Professor."

Professor Li left.

Before coming here, the old man had already told Qin Ze in detail that it is impossible for Professor Li to personally do everything for a huge mathematical model, so he needs an assistant whose salary is 200 per day for a week. After the mathematical model is completed, he can get fourteen thousand.

Professor Li was originally unwilling to recruit current students. Several of his assistants were senior interns who would graduate next month. For the sake of the old man, he agreed to let Qin Ze try it.

Qin Ze waited on his seat for a while, and saw that the senior named Yang Chen was busy working, so he walked over and called "senior".

Yang Chen glanced at him, casually took out a stack of documents from the drawer, and said casually, "You should take a look first."

Qin Ze had no choice but to take the materials back to his seat, and began to chew patiently. A good private equity firm should have its own professional market analysts. It can be seen that the private equity firm entrusting Professor Li is not large. Building a complete digital model requires massive formulas and data. Mathematics is the most rational thing in the world, and every step requires repeated deliberation. Qin Ze's group is responsible for the rate of return and risk assessment.

In addition to the not-too-detailed summary in the information, there are also a series of symbolic explanations. Qin Ze looked a little struggling, took out his mobile phone, searched the Internet, and translated one by one.

In the blink of an eye, it was meal time, and the seniors in the classroom went to the cafeteria to solve their food and clothing problems. Qin Ze wanted to devote himself to studying hard, but was kicked out for dinner by the senior sister in charge of the keys.

Because time was limited, he ate some food casually and hurried back to the classroom.

The door of the classroom was ajar, revealing a crack. Just as he was about to open the door to enter, he heard someone inside say: "Brother Chen, what is the new way? We have worked hard to build this digital model for a month. It's been just over a week, my good guy, he suddenly stepped in to earn our labor costs."

The guy who spoke was also from Qin Ze's group, so I don't know his name.

Yang Chen snorted, "His father and Professor Li seem to be in the same office. They are related households. Come here to learn more and spend some pocket money."

"Our group only received a bonus of 10,000 yuan, but he insisted on giving away more than 1,000 yuan. Grandma's, enough for half a month's rent."

"Aren't you still living in the dormitory?"

"Then you can come to the general health care twice."

"Don't worry, he has a task today, and he hasn't even figured out the basic situation. When I assign some topics to him, if he can't finish it, hehe, Professor Li must be unhappy. If you come a few more times, maybe he will Kick him out."

Qin Ze's face darkened, thinking about these two little red guys. He went downstairs silently, walked around the teaching building, and sighed in his heart, indeed, where there are people, there are rivers and lakes. This kind of fighting without swords and swords became more and more cruel after entering university. No, there are fights everywhere in life, and elementary and middle schools are no exception, but at that time I was young and liked to show it in violent ways.

Qin Ze doesn't like this kind of intrigue hidden in the dark, he hasn't gotten used to it yet.

Ten minutes later, he went upstairs and entered the classroom, and most of the seniors and sisters came back. The senior named "Xiao Liu" smiled at him, and Qin Ze smiled back politely.

There was a professional class at 1:30 in the afternoon. After the get out of class, Qin Ze refused the invitation of his roommate to start online hacking, and plunged into the pile of modeling materials. Although he is not Qin Baobao's kind of gifted science and technology expert, but he has one advantage that the old man can't help but praise: he is calm in every big event! This is what the old man praised him personally.

At five o'clock in the afternoon, Professor Li came back, assigned tasks to each group, and thought of Qin Ze before announcing the end of the day.

"How do you look at the content of the information on the rate of return and risk assessment?"

"A person who is figuring it out blindly has not figured it out yet," Qin Ze said.

Professor Li frowned suddenly, and looked at Yang Chen: "Didn't I ask you to take him with you?"

Yang Chen looked innocent: "I gave him the information, and asked him to ask me freely if he didn't understand, but he didn't have any problems all day long. I thought Qin Ze had a solid foundation and he had mastered it by himself."

Nima, when did you say that.

Professor Li glanced at Qin Ze, said nothing, and announced the end of today's work. Professor Li's calm attitude made Yang Chen a little disappointed. Only Qin Ze could vaguely guess what he was thinking. In fact, the modeling was coming to an end, and it was true that he lacked assistants, but how could he invite a half-assed person like Qin Ze to join the team? Mostly it was for the sake of the old man. The old man also said cryptically that day: If you don't understand anything, just ask him.

So it doesn't matter to Professor Li whether Qin Ze is just messing around, his father is behind the scenes to help.

Qin Ze asked Yang Chen for the materials, but he didn't refuse, and handed him a stack of copies. As a college student, just by looking at the materials, he can tell whether the flowers are worth it?

It was still early after the breakup, and he spoke in the chat group: "Liberated!"

After a while, Li Liang replied: "Come on, come on, we need you to take charge of the overall situation, motherfucker, you can't take them away."

Zhao Baliang followed up and replied: "I can't take you. Brother, one against three, vowed not to retreat. When I look back, Nima, where are my teammates? They all died and returned to the hot spring."

Then Liu Ziqiang: "I'll just quietly watch you pretend to be aggressive and don't talk."

The corners of Qin Ze's mouth curled up, his phone was put back in his pocket, and he trotted towards the Internet cafe with his shoulder bag on his back.

Familiar location, familiar three animals. With a cigarette in his mouth, he was leaning on the sofa chair. Because he was waiting for Qin Ze, Li Liang took time to watch the game video, and Zhao Baliang opened the small window to watch Liu Ziqiang, the leader of the island country, play on his mobile phone.

Qin Ze habitually put on a cigarette, switched on the machine, squinted his eyes and swallowed the clouds.

"It's summer vacation at the end of the month, what are you talking about. Be careful not to fail." Li Liang took a deep breath on his cigarette.

"Earn some pocket money, I can't let my sister take care of me all the time." Qin Ze took out mineral water from his bag and handed out a bottle to each of them.

"Investment modeling is not easy. There are too many factors to consider. How did you feel on the first day?" Liu Ziqiang, who had the best grades compared to the other two, unscrewed the lid and took a sip, then asked with a smile.

"It doesn't matter if it's hard or not, it's just that I met a bitch today and I'm not in a good mood." Qin Ze complained.

"You have a story, but I don't have any wine. Come and hear it?" Li Liang invited Qin Ze to join the game on the computer by the way.

"It's just an idiot, I'll find a chance to mess with him." Qin Ze curled his lips.

"When the time comes, you must take Baliang with you, and use his human cannon to poke that idiot's chrysanthemum hard." Li Liang just finished speaking, and suddenly screamed, "Crazy, what are you inviting a rookie for?"

A guy with the ID "Xiaomanyao" mixed into the camp, and it was the Bronze Vegetable B who made them miserable that day.

Xiaomanyao enthusiastically spoke in the room: "Long live, long live, God, you are finally online."

"God, you guys are black."

"The little girl knelt down three times in a row today, and lost again."

"The Great God took me to the top and took me to fly, I will play a video with you."

The three beasts were unwilling to talk to her, and even the loveless Zhao Baliang didn't bother to talk to her. These days, there are too many ladyboys on the Internet. Thinking of a rough guy on the other side of the screen is indescribably disgusting.

Qin Ze replied playfully: "Naked (harmonious) chat?"

"Hate it!"

When the screen goes dark, enter the game.