I Just Want to Be a Salted Fish in Peace

　　Lin Xian shook his head and said, "I'll have another elective class later, you guys should go back first!"

　　Holding the book, he found the classroom for the elective course, and after walking in, Lin Xian couldn't help but be slightly taken aback.

　　This……

　　There are a dozen or so students in the huge classroom.

　　The key is girls.

　　Seeing Lin Xian at this moment, these girls' eyes lit up.

　　A girl wearing a little yellow duck T-shirt said, "Lin Xian from the finance department?"

　　"Am I so famous!" Lin Xian smiled and sat down in the front row with the eyes of the girls.

　　There are so many girls in Jincai, any exciting news will soon spread throughout the school.

　　Especially for a high-quality boy like Lin Xian, let alone a freshman, even the senior senior sisters of the foreign language department in remote locations know him.

　　Seeing him admit, these girls immediately began to whisper.

　　"He's Lin Xian, he's really handsome."

　　"The skin is so good, I'm so envious."

　　"I heard that the Ferrari in the parking lot is his. It's worth millions."

　　"real or fake?"

　　"You don't know yet? It's been a few days ago."

　　……

· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·?????

　　Generally speaking, it can be seen from the position of the class that a person is not interested in the course.

　　For example, at this moment, these dozen girls are all sitting in the back row, because this position is convenient for playing mobile phones.

　　Since he was interested in mathematics, Lin Xian decided to study the course of mathematical modeling.

　　After a while, no students came in. Lin Xian couldn't help asking, "There are only so many people in Mathematical Modeling?"

　　"There seem to be more than [-]. Those who didn't come should have skipped class."

　　After the little yellow duck girl answered, she asked with a smile, "Lin Xian, I heard that you have a girlfriend?"

　　Lin Xian joked: "Yes! Do you want to be my little lover?"

　　"Hee hee, really? I don't mind being a junior." It seems that because of the large number of girls, the little yellow duck seemed to be fearless and made a bold joke.

......... 0

　　"I'm afraid it won't work, you're late, you can only be a little five and a six at most." Lin Xian said with a smile.

　　"Pooh!"

　　Hearing this, the little yellow duck spat, and the girls laughed together.

　　They originally thought that Lin Xian's character should be very cold, but after contacting him, they found that he was very easy-going, and his talk was also very interesting, and their goodwill increased for a while.

　　It didn't take long for Professor Dai Pingbo to quickly walk into the classroom.

　　Looking around the classroom, Dai Pingbo was obviously stunned for a moment, and then his face became a little gloomy.

　　His character is good, but these students are too much.

　　Mathematical modeling is an unpopular elective course, and Dai Pingbo knows it well, so he rarely calls names in class.

　　A maximum of two or three times a semester is called, meaning.

　　But there are only 53 students in total, and they skipped more than [-] classes all at once, and they skipped classes upright and open. Isn't it a little disrespectful to the teacher?

　　For a while, the atmosphere in the classroom was a little silent.

　　Slowly putting down the textbook, Dai Pingbo said in a cold voice, "The roll call will start now, and those who are called will sign up, and the students who did not come will have zero grades in this course this semester!"

　　I go!

　　All grades are zero, which means no credits.

　　It's a bit tough now!

　　The girls in the back row were a little scared. Fortunately, they came to class by themselves, otherwise it would be miserable.

　　Lin Xian was also a little stunned, Lao Dai seemed to be really angry this time.Husband.

Chapter 105

　　There are a total of 53 people, and almost 70% of the students skip class. Isn't this a slap in the face of Lao Dai!

　　No way, the students who skipped class could only admit that they were unlucky.

　　Dai Pingbo did not report to the whole school, and he has done his best.

　　In fact, these students who skipped class, Lin Xian could probably guess what they were thinking.

　　It is estimated that they have all inquired about Dai Pingbo, knowing that he has a good personality, and generally does not call names, thinking that it should be fine to skip a few classes occasionally.

　　However, there are more than one or two people who think this way. Everyone thinks this way, so this is the situation.

　　To be honest, if it wasn't for Lin Xian's sudden interest in mathematics, he would probably have skipped class today.

　　After calling the names, Dai Pingbo glanced at Lin Xian, who was sitting in the front row, and his expression softened a little.

　　"Let's start class now!"

　　Picking up a chalk, Dai Pingbo began to teach.

　　"Mathematical modeling is the most common manifestation of applied mathematics, and it is also the most intuitive manifestation of mathematics in life. Comparing a person to 14 wholes, then mathematical modeling is equivalent to the human skeleton..."

　　Dai Pingbo's teaching level is still very good. In just a few minutes, he intuitively introduced the specific content and function of mathematical modeling.

　　To put it bluntly, mathematical modeling is to transform mathematical knowledge into practical applications in real life.

　　This requires not only mathematics, but also a strong logical thinking ability, as well as a huge knowledge reserve.

　　For example, using mathematical modeling to create a folding chair involves a series of knowledge such as materials science, human mechanics, engineering and so on.

　　In addition, certain computer skills are also required, because mathematical modeling will often perform tedious and complex calculations, and the use of computers can improve efficiency.

　　Due to the previous atmosphere, more than a dozen girls in the back row began to behave well, each posing a posture of listening carefully, and some were even taking notes.

　　But listen, listen, the situation is not right.

　　who am I?

　　where am I?

　　what am i doing?

　　After this triple soul torture, these girls finally gave up and started playing with their mobile phones.

　　Dai Pingbo ignored them and continued to teach.

　　On the contrary, it was Lin Xian who experienced the treatment like a tutor.

　　It could be clearly felt that Dai Pingbo was teaching him a lesson by himself. When he talked about certain knowledge points, he would deliberately stop and ask Lin Xian if he understood.

　　If Lin Xian shook his head, he would repeat it several times.

　　Let a university professor be the tutor, this treatment is too awesome.

　　Anyway, Lin Xian felt very cool.

　　After the 90-minute class, Dai Pingbo took a sip of tea and asked with a smile, "How do you feel?"

　　Lin Xian nodded and said, "It feels like opening the door to a new world, which is very interesting."

　　"Mathematical modeling is the same as basic mathematics. The best way to improve is to do more questions. Don't be afraid of being wrong, because you can only improve if you are wrong."

　　Dai Pingbo smiled kindly and said, "I will assign you a homework. You can go back and do it slowly. Just leave it to me for the next mathematical modeling class."

　　Saying that, Dai Pingbo took out a pen, took out a blank piece of paper, and quickly wrote down a question.

　　After taking over the question, Lin Xian looked a little stunned.

　　[Deep hole estimation: If you are standing at the entrance of the hole and you only have a calculator with a stopwatch function, you can estimate the depth of the hole by throwing a stone and listening to the echo out of curiosity. Given that you see a mass m = 1kg stone, and accurately determine the echo time of court appearance as t = 5s, according to the following situation, analyze this problem, give the corresponding mathematical model, and estimate the depth of the hole.

　　(1) Air resistance is not counted;

　　(2) Affected by air resistance, ... proportional coefficient = ;

　　(3) Affected by air resistance, ... proportional coefficient = 0.0025;

　　(4) In the above three cases, if we consider the time required for the echo to return. 】

　　Seeing his expression, Dai Pingbo patted him on the shoulder and said with a smile, "Go back and think slowly, even if you can't do it, it doesn't matter."

　　Lin Xian nodded and said, "Okay, I'll go back and give it a try."

　　After Dai Pingbo left, Lin Xian suddenly found that the girls in the classroom had not left, and all of them were looking at him with strange eyes.

　　Their thoughts are similar to Lei Hongguang. A rich and handsome person like Lin Xian shouldn't be flirting with girls, racing cars, and visiting nightclubs?

　　You can play golf, or bowling.

　　Lin Xian's performance was too far from what they imagined, and could not help but feel a strong sense of disobedience.

　　The style is totally wrong!

　　Lin Xian ignored them, packed up his books and returned to the dormitory.

　　Now that the day-study procedures have been completed, you can go out at any time.

　　Stuffing the alien notebook into the shoulder bag, and taking "Mathematical Analysis" and the homework assigned by Dai Pingbo, Lin Xian leisurely drove his Ferrari out of the campus.

　　……

　　After returning home and pushing the door to enter, Lin Xian couldn't help but be slightly taken aback.

　　The whole house has been refurbished.

　　There are some art paintings hanging on the walls, and many trinkets are placed on the coffee table and counter. In addition, on the originally empty balcony, there is a hanging basket of rattan chairs.