The strongest brain in entertainment

Chapter 341 High math, easy.

At the banquet after the show, Li Fan was basically in a state of "stamp collecting".

Before he came to Zhehe, he specially bought a Polaroid, which is a camera that takes pictures directly when you press the shutter.

He took a camera and took photos with the stars, and asked for his signature on the photos.

"Sister Zhi, please sign for me, it's an honor to be on the same stage with you."

"Mr. Zhang Yi, your drama is so full of life. I like you very much. Can you sign it for me?"

"Huang Ama, please make more movies, I really want to relive your domineering eyes, please sign!"

……

Li Fan asked for a circle of autographs at the banquet, and when he returned to the hotel room, Zhang Xiaofei said pleasantly: "Hey, Brother Fan, so you are so old, and you are actually a fan of old stars of that generation! I thought we all like it after 00." Where's the little deer?"

Li Fan said honestly: "I respect my seniors, but I don't admire them."

Zhang Xiaofei was taken aback: "Then you, why is it the first time I see you asking someone for an autograph?"

"Hi!" Li Fan smiled and began to show the photos in his hand, "This is my mother's idol, this is my father's dream lover, this is the old man in my aunt's dream... It's all theirs. The memory of the era, I am giving them the signature, this is the death order they gave me."

"Oh...so that's how it is. I thought you were their fan. Look at those teachers who were so happy when they saw that you wanted autographs. Tsk tsk, you didn't say that the elders in your family wanted them, but you said you liked them. Brother Fan, you still have a way , it can be seen that the skill of flattering must be at its peak."

"Low-key! Let's see when the earliest flight is tomorrow. Let's hurry back to the capital. It's cold and gloomy in the south, and I can't get used to it for the time being."

"Don't you need to ask Guan Tong and the others?"

"They are not with us. Guan Tong is going to visit the crew tomorrow."

"Great," Zhang Xiaofei raised his ears to listen, then lowered his voice, "Guan Tong is a good person, but he is like a ticking time bomb. You can't say when."

Li Fan giggled, "Sometimes speaking is hard to guard against, small flaws. But, people are good, as long as they are good. People who talk beautifully are bastards, this is the most disgusting."

Zhang Xiaofei glanced at the stack of photos in Li Fan's hand, and asked hesitantly, "Brother Fan, in our family, whose dream lover is Teacher Zhang Yi?"

"Hey, here you go, no one asked me for his, but I can't let go of any old artist, lest they have something in their mind." Li Fan stretched out the photo and handed it to Zhang Xiaofei, but his hand suddenly hovered In mid-air, he suddenly asked, "Do you want to take a photo?"

"what?"

"Let's go, I'll take you to Teacher Zhang Yi to take a group photo!"

"Brother Fan, I love you, hurry up, hurry up, he will run away in a while."

As soon as the two of them walked to the door, Zhang Xiaofei suddenly turned back into the bathroom, and began to comb his hair in front of the mirror, and tidied it up carefully.

Li Fan shook his head, the little girl chasing stars is really scary, he glanced outside the door, and suddenly said: "Mr. Zhang Yi, you are... oh, you are catching a plane, let's talk about it later when we have a chance."

boom!
A loud bang.

Li Fan quickly shifted his gaze back to the room, but saw Zhang Xiaofei clutching his forehead like the wind blowing past him, leaving the glass door of the bathroom creaking and "shivering".

"Brother Fan, you lied to me!!"

Li Fan laughed: "That's right, I don't need makeup this time, this bag won't melt anymore."

……

After fulfilling Zhang Xiaofei's wish, Li Fan returned to the bedroom and turned on his computer to write a manuscript when his cell phone rang. It was Lu Yi calling.

Lu Yi, the host of the famous talk show "A Date with Lu Yi", one of the top ten famous hostesses in China, is very famous and has a wide range of popularity.

But for her hosting skills and business level, netizens praise and criticize her.

Maybe the female hosts get more attention than the male hosts, and the topics are more topical. Except for the current female hosts of Beijing TV, the professional level of the female hosts in other systems is controversial, and Lu Yi is one of them .

Lu Yi was also put on a big hat by netizens: the queen of sorrow.

It's not her who is sad, but whoever she interviews is sad.

Interview with a famous entrepreneur, the entrepreneur's factory soon broke the capital chain and declared bankruptcy:

Interviews with famous couples in the entertainment industry, but just after the show aired, the couple announced that their relationship had broken down and they were divorced.

I even interviewed the founder of a famous foreign cloud service. Soon after, a huge security hole appeared in the cloud service, and countless private photos of popular stars were leaked on the Internet.

……

Therefore, netizens ridiculed that this person has an ominous sign.

In fact, this is just a joke, and she doesn't have any spells. After all, Lu Yi has interviewed too many elites from various industries.

It was very simple for Lu Yi to call Li Fan, just to see if he could spare a day to help record "Walking with the Big Guys".

Originally, the recording of Li Fan's episode had been postponed to January, but because the production team wanted to use Li Fan as the first guest to increase the popularity of the show, Lu Yi called to discuss it in person, to see if there could be a little communication room for.

Lu Yi said on the phone: "Our recording is at Beijing University, that is, we will record your daily life in a day and talk about the experiences of the past two years. It will not consume too much of your time."

Li Fan counted up the time and said, "Okay, Sister Yi, are you sure you will stay at Beijing University for the whole time?"

"It's up to you, if you lead us to other places, we will follow you."

"Oh, Wednesday and Thursday are all done. I'm still in school. But I'm going to Gongsu Satellite TV to record "The Most Powerful Brain" on Friday, and I really don't have time since then."

Lu Yi said happily: "Okay, it's settled! When we go to record, we don't have to say hello in advance, just "visit" directly, and you can be prepared to meet the enemy in those two days!"

"no problem!"

After putting down the phone, Lu Yi happily shook the phone to his colleagues in the office, "It's done, Li Fan can spare a day on Wednesday and Thursday!"

"It has to be Sister Yi, we are all in vain!"

"Sister Yi has a lot of face, can our little choreographer compare to her?"

……

Lu Yi smiled and said, "Okay, let's go to Beijing University on Thursday, you should prepare in advance. Oh, by the way, let's buy some gifts for Li Fan if he likes anything."

"Aren't you and the big manager Jiang Dan good sisters? You can ask Mr. Jiang."

Lu Yi called Sister Jiang, but Sister Jiang replied with a smile: "He just loves money! Just kidding, Li Fan doesn't have any special hobbies, you can do whatever you want...Really, he doesn't have any particular preferences."

Lu Yi put down the phone and got a headache, what should I give you?

A choreographer suggested: "Cultural people like to drink tea, and it is right to give some good tea."

Lu Yi agreed deeply, and then went to a famous shop to carefully select tea leaves.

……

After returning to the capital, Li Fan plunged into the library and began to charge for the final exam.

No matter how busy you are, you can't forget that you are still a student, and you should attend classes and take exams.No matter how popular you are, even if one day you burn half the sky red, you have to recharge yourself and give up your efforts.

Li Fan has always felt that only by constantly enriching himself and improving himself can he make his life more exciting and stable.After all, good looks can’t keep you popular for a lifetime. After more than ten years, what should you do when you are “old and decrepit”?
Facts have proved that Li Fan's idea is completely wrong and overwhelmed.

First of all, he is not only popular because of his appearance, of course, it is absolutely impossible for him to be so popular if he is plain. (Well, truth!)
Secondly, there are two types of handsome. Some people are handsome from childhood to old, and they have charming demeanor at all stages of life.There are also some people who are just magnificent when they are young, but they are potbellied in middle-aged and old age.But Li Fan is obviously the former.

On the long table in the hidden corner in the northeast of the study room, there is always a copy of Hugo's "Les Miserables" placed near the window to occupy a seat.

Although the Beijing University study room expressly stipulates that no seats are allowed, and administrators repeatedly check and confiscate books every day, this "Les Miserables" is not tragic at all, and has successfully escaped round after round of "searches". It will remain there forever, no matter how long the owner has not been to the study room.

Because, this book belongs to Li Fan!
As long as there are people, there are privileges, and the same is true for the study room in Kyoto.

Li Fan held a stack of books and put them on the table. He took off his down jacket, sat on a chair, picked up the first book, and carefully read it page by page.

This large and long table can seat 12 people. When Li Fan, who hadn't shown up for two or three days, showed up, some of the classmates who were still reading at ease before became "absent-minded".

Not long after, a girl quietly walked up to Li Fan, patted him on the shoulder, and said, "Student Li Fan, I'm sorry to bother you, but can I ask you a question?"

Li Fan raised his head, "Oh, what's the problem?"

"I've read your academic research before. You researched the ancient "Yuche" in your article, but I think the structure of the Yuche map you researched is wrong."

Li Fan was overjoyed, "Really, tell me your point of view."

"Can I use your pen and paper?"

"Of course!"

……

On a nearby table, two male students whispered:
"Li Fan really monopolizes the eyes of all the girls in our school. I'm so envious."

"There's nothing we can do about it. Who can call someone talented and good-looking? There's no solution for talent in all aspects."

"That's not necessarily the case. Believe it or not, I can ask Li Fan to stop?"

"Bragging."

"Make a bet!"

"Gambling, what are you betting on?"

The tall boy thought for a while, "If I lose, I'll treat you to a big meal at a restaurant outside. What if you lose?"

The fat boy thought for a while: "If I lose, I'll give you my 2 G USB drive for a few days!"

"Brother, what year is it, the ancient times? The USB drive started with 8 G, why are you kidding me with 2 G?"

The fat boy lowered his voice and said mysteriously: "There are love martial arts movies with 2 Gs in it!"

The tall boy curled his lips, "Dude, are you a caveman? How many can you hold? Besides, the capacity is not super clear!"

No matter how low the fat boy's voice was, "I'm talking about 2 G seeds!"

The tall boy was shocked, and slapped his thigh, "Oh my God! That works!"

"What questions do you want to ask Li Fan, it's too difficult to embarrass Li Fan!"

"Let me think about it first!" The tall boy thought for a long time, then his eyes fell on the "Advanced Mathematics" on the table, and he pointed, "That's it."

"Your uncle, he is a liberal arts student!"

The tall boy picked up the book and got up and said, "It doesn't matter, it's for 2 G seeds!"

"Hey, don't let someone beat you up."

"He's a big celebrity, he doesn't dare to cut me, he's on the news every minute, at most he gives me a look of disdain."

……

The girl discussed the structure of the car with Li Fan, and after being taught a lesson by Li Fan, she nodded with a smile, raised her thumb and said, "Li Fan, you still have a reason."

Li Fan smiled and said, "Your idea is also ingenious."

The girl smiled, turned and left.

Li Fan just lowered his head and turned over two pages of the book, but heard someone whispering softly in front of him: "Student Li Fan, can I ask you a question?"

Li Fan put the gel pen in the book, looked up, he was a thin and tall boy, he said with a smile: "Yes."

The boy smiled brightly, and the seeds were in hand.He put the advanced mathematics textbook on the table and said, "Please help me see how to solve this problem, I didn't want to understand."

Li Fan was taken aback, high math?this……

In the textbook, the question circled by the tall boy made Li Fan confused:

Try to determine the number of real roots of the equation x0ax+a=3 in the open interval (0, 0) in terms of the different values ​​of the parameter a>1, and explain the reason.

Li Fan frowned upon seeing this, and said, "Wait for a few minutes for me to analyze it!"

"Okay, there's no rush."

The tall boy saw that Li Fan suddenly turned the textbook "Advanced Mathematics" to the first page. The slightly long thick hair is clean without a trace of contamination.

The tall boy thought to himself: I only hate that I am a man. If it were a woman, I would also like this handsome guy!
In less than 10 minutes, Li Fan turned to the page number of this question. He stopped, took out a pen and paper and said, "Shall I tell you?"

The tall boy was dumbfounded for a moment, "Huh?"

"Didn't you ask me how to solve this problem?"

"what!"

"Then look, I'll tell you the steps to solve the problem while listing it for you."

"Ah!" The tall boy can only say "ah" at this time.

On the A4 paper, the gel pen is rustling, and the steps to solve the problem are vividly displayed on the paper:
Solution: Let f(x)=x 3ax+ a, obviously f(x) is continuous and derivable on the interval [0, 1], and f′(x)=3(x+√a)(x-√a).

(1) When a≥1, f(x) has no stagnation point in the interval (0, 1), and at this time f'(x)<0, and f(0)=a>0;, f(1 )=1- 2a<0
(2)……

...When f (√a)=a(1-2 √a)<0, and f(1)=1- 2a≤0, that is, 1/2≤a<1, f(x) is in the interval (0 , there is only one zero in 1),
At this time, the original equation has only one real root in the interval (0, 1).

After writing the entire problem-solving process, the tall boy was stunned, the 2 G seeds were gone, Li Fan, you... you liberal arts student, you are a bit too good, why are you studying advanced mathematics!

Li Fan said again: "The auxiliary function and interval of this problem are obvious. Since we need to study the number of real roots, we roughly draw the graph of the auxiliary function, but only need monotonicity and extreme value, and do not need to consider concave and convex. and the inflection point, so only the first derivative is needed, and then it is OK to discuss according to different values ​​of a, which is really simple.”

Tall boy: "Ah! Mmm! Yes!"

Li Fan smiled and said, "Didn't you usually take this class very much? This question is the simplest basic question. If we students of Peking University just listen to the lectures, this question will be easy to grasp. I guess you must not have taken advanced mathematics much." class."

"Uh, that, ha!"

Li Fan said again: "In fact, advanced mathematics is quite simple. It is the introductory popular textbooks and popular books for universities. There are too few dry goods in them."

"Oh, that, student Li Fan, thank you, you are busy, so I won't bother you."

The tall boy slipped away in a hurry, and was pierced by a liberal arts student.

Li Fan smiled lightly, then unfolded the book and continued reading.

As the number of books on the table dwindled, the pointer on the library wall ticked to 5 o'clock.

Li Fan, who was concentrating on reading, suddenly had a faint familiar scent of perfume in his nostrils. He raised his head quickly and saw Gu Yating leaning on the corner of the table and fiddling with his mobile phone.

"Oh? Are you here to study?"

Gu Yating stared at the food information on the phone, and said: "No, I'm looking for you, you read the book first, I'll wait for you, and follow me after reading."

"Then wait for me for 5 minutes!"

After reading the last part of the book in his hand, Li Fan closed the book and asked, "Why do you want me?"

"Accompany you to buy clothes! Don't you have an event?"

"Oh, I have clothes, no more."

"Wear new clothes for that occasion, and let's go."

After returning the books in the library, the two walked out of the library together. When they first arrived at the door, they saw two students, one tall and one fat, grabbing a USB flash drive 10 steps away.

The fat classmate protected the USB flash drive, and said, "You didn't beat me, so why grab it? You're so embarrassing!"

The tall boy: "Although I didn't win, I lost with honor. Isn't that Li Fan? Who would have thought that a liberal arts student would choose "Advanced Mathematics"!"

"Admit the bet and admit defeat, don't play with my USB drive."

"I'll add another project for you. After eating at the restaurant, I invite you to karaoke!"

"Be honest with me, if you touch my USB drive again, I'll eat it."

……

Gu Yating asked curiously as she walked, "How is it related to you?"

Li Fan frowned and shook his head, "I don't know."

Gu Yating: "When did you take "Advanced Mathematics"?"

Li Fan continued to shake his head, "I didn't fix it, I just watched the previous part."

The voice was not high, but it clearly reached the ears of the two students who were bargaining for the USB drive.

The two men in science and engineering looked at the two handsome backs passing by, and then, the haze above their heads seemed to be heavier, and the cold weather seemed to be more penetrating.

The tall boy said in a low voice: "He said that "Advanced Mathematics" is a popular book."

"Well, I think so too."

"He gave me the answer in less than 10 minutes. He just flipped through the book before."

"What do you mean?"

The tall boy rubbed his face, "Let me calm down, I feel like I've seen a ghost."

(End of this chapter)