I Just Want to Be a Quiet Top Student

"6 meters, I won." Shen Qi stood up from the bunker and patted the sand.

"I'm so shocked, Shen Qi." Xu Rui was very puzzled, "This kind of long jump with an approach is not a standing long jump. It is difficult for ordinary high school students who have not received professional track and field training to jump more than 6 meters, unless they are born with bounce The power is astonishing. And you are obviously neither the latter nor the former."

Shen Qi said: "In the past few months, I practice running every day."

"You practice aerobic running at medium and low speeds. Does it have anything to do with long jump?"

"Is it okay?"

"Have it?"

"There's none?"

"Stop talking, I admit defeat, and I'll treat you to chicken chops tonight. Damn, I'm so poor recently, but don't worry, no matter how poor I am, I won't break my promise." Xu Rui sat on the ground by the sandpit, and opened his sports bag He took out two bottles of Pocari from his zipper, handed one to Shen Qi, and kept the other for himself.

"The track and field team takes care of food and drink, and distributes nutritional supplements. Where did your money go?" Shen Qi took the drink, unscrewed the bottle cap, and took a few gulps.

"Hehehe, recently I met a girl who is super pretty, of course it costs money to pick her up." Xu Rui smiled happily, took out his mobile phone from his sports bag, and clicked on a photo for Shen Qi to observe. It's Chi Guoguo's dog abuse, proving that he's off the list.

Shen Qi admired the girl's photos with great interest, and then spit out his drink with a "poof".

"It doesn't matter if you study well, but you're still single, hahaha." Xu Rui couldn't stop laughing, very embarrassing.

"Cough cough." Shen Qi choked on the water and coughed several times.

"Are you surprised by my sister, single dog?" Xu Rui flicked the screen of the phone, "Look, there are more, this, this, and this."

Shen Qi couldn't help it anymore: "The one in this picture is your sister?"

"Yes."

"She must weigh 180 catties, right? Super pretty?"

Xu Rui asked back: "What's wrong with the 180 catties? She is a student from the province, and she focuses on shot put. We met at the provincial U19 sports meeting."

"Xu Rui, is there something wrong with your aesthetics?" Shen Qi couldn't understand.

"You have a problem with aesthetics!" Xu Rui was unhappy, and added: "I'm serious, Shen Qi, I believe in love again. I only show you the pictures when you are a brother, don't make me mad .”

"Okay, okay, I wish you happiness, the sea is dry and the stone is rotten and the white head will not be separated. Hey, Xu Rui, do your parents know when you pick up your sister?"

"Let's keep it a secret, and tell them after I go to university. So I must win the national U19 100-meter champion and go to Shuimu University. As long as I am recommended to Shuimu University, hehe, then I can do whatever I want, just like you Shen Qi. "

"A girl can change a man's life." Shen Qi sighed, he only weighed 130 pounds, and it was difficult for him to accept a girlfriend who weighed 180 pounds.

The two chatted for a while, seeing that it was almost two o'clock, Shen Qi walked towards the teaching building, Xu Rui stayed on the playground and trained hard, for his dream of Shuimu University and his shot put girl.

As soon as he walked downstairs to the teaching building, Shen Qi's cell phone vibrated, he took out his cell phone and took a look, hey, the editor sent a message on Knockout.

More than a week ago, Shen Qi submitted a mathematics paper to the editorial department of "Mathematics Innovation Newspaper", and left his mobile phone number and QQ number.

The next day, Jia Shenqi, an editor of the "Mathematics Innovation News", was a friend of Koukou and said to keep in touch.

Then a week passed with no contact.

Shen Qi even felt frustrated that his first thesis had been clicked off, and he was about to write a new thesis.

Fortunately, the editor sent an exciting message at this time: "Shen Qi, after the preliminary review, the paper you submitted to my journal "Some Solutions of Second-Order Constant Coefficient Linear Inhomogeneous Differential Equations" meets the requirements of our journal for acceptance. , now I would like to discuss some details of the paper with you in depth. Please reply."

Shen Qi replied immediately: "Okay."

Edited greatly: "On page 7 of your paper, let y=vx, and substitute into the equation, so that the variables are separated, and the solution of the variable separation and homogeneous equation is obtained."

"I don't agree with the ordinary differential equation variable separation method you used. You can use this method to solve high-level math problems, but it is not rigorous enough to write a thesis."

"Also, on page 12, I think you misunderstood the Riccati equation, I don't understand how you transformed z=v+u^-1 to be linear?"

"Of course, the flaws do not conceal the advantages. Except for the above-mentioned few minor flaws, the overall conception and presentation of your paper basically meet the requirements for publication."

"I'm chatting with you today, I hope you can make corrections. Shen Qi, what do you think?"

What do I think? I have too many opinions, which cannot be explained clearly to you in one or two sentences.

Shen Qi replied: "Please wait a moment, I will ask the school leader for instructions, and I will give you an answer later."

There are still a few minutes to go to class, and the first class in the afternoon is math class.

Shen Qi greeted Zhang Wanbang and said he wanted to go to the school library to check the materials.

Zhang Wanbang waved his hand, go, do what you like, don't ask me for instructions.

Shen Qi came to the library, it was empty and there was only one administrator guarding the door.

There is no need to check the information, and Shen Qi does not need the information in the school library at all. He took out his mobile phone to discuss with the editor: "Sorry for keeping you waiting. Let me talk about page 7 first, and I introduce new variables t and v , so that equation (8) can be regarded as a parametric equation of x and y with respect to v, and then I can calculate dy/dx and d^2y/dx^2 logically..."

"Please turn to page 11 of my thesis. After substituting equation (15), I get a second-order equation of t as a function of v. It may be a bit jumpy here, but it is closely related. I hope you able to see..."

"The discussion on page 12 is also related to the conclusion on page 14. I fixed the undetermined constant α to eliminate the exponential factor, so that v no longer appears obviously, and then transformed z=dv/dt to convert the second-order equation into For the first order, derive a general solution formula... Can you understand me when I explain it this way?"

The editor on the other end of the button was silent for ten minutes.

Shen Qi was a little anxious: "Excuse me, are you still online?"

The editor finally replied, instead of discussing academic issues this time, he asked: "Shen Qi, may I ask which institution you are from? You did not leave your affiliation or research institution in the paper materials."

Shen Qi: "Local."

"Mathematics Innovation News" is a professional journal sponsored by the School of Mathematics of CUHK, a local 985 university. Although it cannot compete with the most authoritative and oldest mathematics journal "Mathematics Herald" in China, the young "Mathematics Innovation News" is also It can be regarded as one of the professional mathematics journals that are thriving in China.

The editor of "Mathematics Innovation News" learned that Shen Qi was from a local area, and asked again: "Which local college? Is our Chinese University, Huagong University, Jida University, Huanong, or China Normal University?" out.

Shen Qi: "I'm from high school."

Editor: "Mr. Shen, may I ask which local high school you teach in?"

Damn, the editor thought I was a high school math teacher? Shen Qi didn't know whether to laugh or cry, high school math teachers sometimes wrote papers and submitted them to professional journals in order to evaluate their professional titles.

But I am not a teacher!

Shen Qixin said, how should I explain this to the editor?