I really just want to be a scholar

Chapter 167 Do you want to try with a beautiful girlfriend like you?
"Huh? You are also from the Department of Mathematical Sciences? What a coincidence, so am I. My name is Xu Wei. I am a sophomore this year. Come on, let me show you around. I know a lot of people, and you don't have to queue up to enter many venues. By the way , what do you two call them?"

Qin Ke was "surprised" and said: "So you are a senior from the same department? That's great. I was discussing calculus with this classmate just now, and we didn't come to a conclusion. Can senior help answer one or two?"

Xu Wei showed joy, patted his chest and said, "Ask, I'm still very familiar with the calculus of the freshman."

"Oh, what we just discussed is that Weierstrass derived a definition of irrational numbers that does not depend on the concept of limit by means of a monotone bounded sequence. In this theory, the number root 2 is not defined as the sequence 1, 1.4, 1.41 , the limit of 1.414..., to some extent, there are many contradictions with Cauchy's limit principle. We just discussed how this contradiction is resolved and evolved in calculus, but we have not been able to Reached a consensus, I don't know what is the opinion of the senior brother?"

Xu Wei: "..."

Are all the freshmen now so fierce?Are the daily discussions related to the origin of the underlying mathematical theory in this way?

Sweat dripped from his forehead, and his calculus is not bad, but he only masters the conventional knowledge in textbooks, such as Cauchy's theorem, Lagrange theorem, Newton-Leibniz formula, etc., how can there be any in-depth knowledge? Have you ever studied such a profound origin theory?Not to mention him, even if you find a senior undergraduate majoring in mathematics, unless you are interested in looking over the history of calculus and familiar with Weierstrass' theory, you will still be dumbfounded and unable to answer.

Only Qin Ke, who has absorbed almost all the works and textbooks on calculus from all the universities in the world, all the books and textbooks at home and abroad, can master these original theories at his fingertips.

Qin Ke looked extremely disappointed: "No way, sophomore brother, you can't answer it? Then let me change the question. Lagrange proposed that the solution of the first-order nonlinear partial differential equation is classified as a complete solution. , singular solutions, and general integrals, but Lagrangian's own theory has shortcomings. He only discusses the situation of two independent variables, which was solved by Cauchy later. I would like to ask Cauchy how to extend it to n independent variables When it comes to variables, what is the main basis, and what is the biggest advantage of the later solution compared with Lagrange's theory?"

Xu Wei: "..."

The sweat on his forehead became more and more dense, but he couldn't speak a word when he opened his mouth.

"You can't do this either? My classmate answered the question just now? Are you from the Department of Mathematical Sciences?" Qin Ke's disappointment showed suspicion and vigilance.

Xu Wei didn't have the face to stay any longer: "...Hey, Junior Brother and Junior Sister, I happen to have something to do, so excuse me."

Damn, I lost my face today!

Ning Qingyun watched the inch-cut boy leave in embarrassment, and couldn't help but burst out laughing: "Why are you talking nonsense like this? What about Lagrange and Cauchy, when did I discuss this with you?"

"Hey, to deal with guys who want to strike up a conversation with my good friend beyond their limits, we can reduce the dimensionality of academics. The school committee, in order to prevent you from being struck up again..." Qin Ke stretched out his hand with a smile, and held Ning Qingyun's white, tender and slippery little hand is different from the simple holding in the past, but the intimate holding method of inserting fingers into her slender fingers and holding tightly with ten fingers.

"You...you let me go." Such ambiguous and intimate contact made Ning Qingyun subconsciously struggle in a panic, but couldn't.

Qin Ke had a playful smile on his face, and let go of his hand according to his words: "Then I let go, and I won't care if someone strikes up a conversation with you later."

Ning Qingyun glared at him with an attitude of "don't you dare to ignore it", but Qin Ke's face was so reckless that he was not afraid of her staring attacks at all.

"Bastard! Damn!" The girl's pretty face showed a lovely blush, but after stomping her feet, she finally stretched out her hand shyly and timidly, and gently hooked Qin Ke with her silky jade pinky fingertips. big hands.

I... I just don't want to be disturbed by people, I... I didn't take the initiative to hold hands with this villain like a couple.The girl was thinking this way, but for some reason, her heartbeat was so fast and her face was so hot?
Qin Ke chuckled, and clasped his fingers with her again, feeling the softness and smoothness of the girl's slender white and tender hands, and his heart was filled with a sense of accomplishment and joy.

Ning Qingjun lowered her head slightly with a blushing face, and was pulled forward by him.

In fact, she is still not used to being walked in public by Qin Kela, let alone holding hands in such an ambiguous way, but there are a lot of college students in Qingmu University here, and most of them are boys.

Those young boys passing by, before Qin Ke held her little hand, looked at her with extremely burning eyes, and some secretly took pictures of her with their mobile phones.

Now all the boys looked back, they first looked at her, and then saw the hands of the two holding hands, they looked away in surprise, regret, and regret.

For some boys who boldly stared at him, Qin Ke returned his fierce gaze unceremoniously, and often turned his face away in a panic, not daring to look at Qin Ke who was full of bastard breath.

The girl was flustered and funny, but she also had a hint of sweetness being protected, and then subconsciously held Qin Ke's big hand instead.

Qin Ke and Ning Qingyun walked together in Qingmu University.

This is a top-notch university with a long history and a world-renowned reputation for science. I don’t know how many high school students burnt the lights to study at night on their birthdays, just to get a letter of admission to study here.

The two walked through the lotus pond described in Zhu Ziqing's "Moonlight on the Lotus Pond", and walked through the small bridge and flowing water, but most of the water was covered with a thin layer of ice.

Qin Ke asked as he walked, "School committee, among Qingbei, do you like Qingmu or Beiyan?"

"My father is from Qingmu, and my mother is from Beiyan. I didn't think about which university I would go to in the future."

As expected of Ning Qingjun, she spoke of these two top schools.

But Qin Ke knew that after the results of the national competition were announced today, the doors of these two famous universities would be open to him and Ning Qingyun at any time.

"Have you considered studying abroad?"

Ning Qingyun shook his head: "My parents are both core personnel engaged in important national scientific research projects, and they have to go through approval when they go abroad. They are so busy, how can they sign for me..."

Qin Ke nodded in understanding, and at the same time, he was even more dissatisfied with his future father-in-law and mother-in-law.

Even if you have "everyone" in your heart, you can't forget that you still have a "small family" and a daughter who hasn't grown up yet.

It's a miracle that Ning Qingyun can still maintain such a cute, innocent and kind nature in such a family environment.

"If there is a chance in the future, I will find a way to go abroad with you as an exchange student and live and study abroad for a month or two. In fact, I prefer to stay in China, and I will only stay in China in the future, but sometimes I have to admit that sometimes I have never been outside to see a different world, and my vision and vision are completely different.”

Qin Ke sent this out of feeling.

Not because of the insights from traveling, but because of the knowledge in his mind.

Originally, his "Mathematical Analysis" was only available in Chinese, and his feelings were not so deep, but many of the "Probability Theory" are in the original English version, and there are indeed many differences between the reading and the Chinese version, which made him realize that foreign countries are indeed There are also many different and fascinating knowledge.

"Okay, here we are." Qin Ke brought Ning Qingyun to a large exhibition hall with a sense of technology.

"here it is……"

"This is a science and technology exhibition hall with a starry sky theme, but there is also a firework exhibition with 4D effects. It is impossible for us to see fireworks casually in the capital now. It is good to see fireworks through virtual technology." Qin Ke explained with a smile.

Before Ning Qingyun could answer, a short-haired female student at the door who looked like a cadre of the student union interjected with a smile: "This student knows a lot, yes, our exhibition hall here is the most popular in the entire science and technology exhibition. Welcome, so the queue is very long."

She pointed to the long snake-shaped queue, and said: "But we have a rule here, whoever can complete the challenge here can skip the queue and enter this exhibition hall, and visit it first. Classmates, do you want to go with you?" Try with such a beautiful girlfriend?"

It was probably because Ning Qingyun was so pure and good-looking that she felt close to her, so she specifically mentioned this sentence. If it was someone else, she would not have such a good attitude.

Qin Ke said with a smile: "Beautiful senior sister, I saw someone posted yesterday that the topics here are given by various colleges, and students can decide which college to choose, right?"

This "beautiful senior sister" shout made the female student very happy, she smiled and said: "It seems that you have done the strategy, but oh, yesterday's question bank is no longer valid, today's questions are all new questions."

"No problem, I want to choose the Department of Mathematical Sciences."

The female student looked at Qin Ke: "Are you a junior in freshman year? Okay, you can choose a topic from ABC."

Qin Ke reported an A casually, and the female student glanced at him, shook her head, clicked on the tablet in her hand, and opened the corresponding question number.

"Title A: The king of a certain country decides to give 100 prisoners in prison a chance to be amnesty, but there is a prerequisite: the prisoners need to pass a challenge task."

"The task is as follows: the prison uniforms of all the prisoners are printed with numbers from 1 to 100, and one hundred number plates with the same number will be shuffled and placed in one hundred closed drawers. Each prisoner has 50 This is my second chance to open the drawer and find the corresponding number plate on my clothes."

"If found, the prisoner will be judged as successful in the challenge. Each prisoner will enter the challenge room individually in turn to perform the task, and regardless of whether the task is successful or not, he has to leave through another exit and be brought back to a separate cell , can no longer communicate with any prisoner."

"When a prisoner completes the task, the challenge room will be restored to its original appearance, and the number plate taken out will be returned to the original drawer. The failure of any one of the 100 prisoners in the task will lead to the failure of the entire challenge, if and only if all prisoners When they all successfully complete their tasks, they will be given the opportunity to be released with amnesty at the same time."

"Of course, the king specially gave all the prisoners a month's time before starting this task challenge, so that they can communicate and discuss countermeasures at any time. May I ask, what chance do the prisoners have to be released?"

The female student pointed at the question and said sympathetically, "Brother, here are paper and pens, you can use them, but to be honest, you are really unlucky, this question is a difficult probability question, there are more than a dozen students in the math school this morning. All the students took this question and tried it, and all of them failed the challenge..."

　The addition of Chapter 4 will be released in about half an hour

　　
　
(End of this chapter)