Chapter 90 Fundamentals of Number Theory
Coming out of the counselor's office, Chen Zhou held a stack of books, walked through the strange eyes that looked at him, and finally returned to the dormitory.
Chen Zhou guessed they hadn't seen so many books...
Knocking open the door of the dormitory, Chen Zhou took three steps and two steps, walked to the desk, and put the stack of books down on the desk.
Zhao Qiqi, Zhu Mingli, and Li Li immediately surrounded them, and they all had a lot of question marks in their minds.
Zhao Qiqi asked, "Chen Zhou, where did you get so many books?"
Chen Zhou replied: "I asked the counselor to buy it, and if you want to read the basic mathematics textbook in the future, you can get it from me." ”
Zhao Qiqi glanced at the pile of books: "Isn't it, your stack of books is full of textbooks for basic mathematics?"
"Hmm. Chen Zhou nodded and began to sort out the textbooks.
"Okay, are you planning to study on your own in advance?" Zhao Qiqi also started to help Chen Zhou sort it out.
"That's how it is going to be. Chen Zhou replied honestly.
"But some of these seem to be in the curriculum?" Li Li has been paying attention to these materials.
"Well, I've picked out all the courses. Chen Zhou nodded, he had already divided the textbook into two parts, one for learning immediately, and one for self-study.
There are several textbooks such as "Mathematical Analysis 1" and "Advanced Algebra 1".
There are many textbooks such as "Fundamentals of Number Theory", "Basic Algebraic Geometry", "Topology", "Differential Geometry", "Partial Differential Equations", "Functional Analysis" and so on.
Li Li glanced at the two piles of textbooks that were completely different in height, and said, "Chen Zhou, if you really want to learn so much by yourself, it will take a lot of time." ”
Chen Zhou smiled faintly: "It takes a lot of time. ”
After the teaching materials were sorted out, Chen Zhou went out again, called Yang Yiyi to have dinner together, and then bought some daily necessities.
During the meal, Chen Zhou thought of the stack of math books again, and asked, "Yiyi, do you have many basic courses in your physics department?"
"If you look at the course schedule, it doesn't seem like much. The main ones are modern physics, theoretical mechanics, and general physics. After a pause, Yang Yiyi thought that Chen Zhou was worried that his course would be difficult, so he said, "With the big things and high mathematics that I studied with you during the summer vacation, the course should not be difficult." ”
"Uh... That's good. Well, go back and lend me your textbook as well. After Chen Zhou finished speaking, he took a bite of rice.
"Well, good. After Yang Yiyi finished speaking, she glanced at Chen Zhou.
After eating, the two went to buy daily necessities.
There are big pots and small pots, and there are big stacks, but no one cares about Chen Zhou this time, this is the normal state of school.
Back in the dormitory, put everything in order, Chen Zhou's college life officially began.
Sitting at the desk, Chen Zhou took out "The Basics of Number Theory" and flipped through it.
Also known as the "Queen of Mathematics", number theory is a type of pure mathematics that studies the properties of integers.
Pure mathematics is the study of the laws of mathematics itself, not for the purpose of practical application.
Number theory was called arithmetic in the early days, and its origin was very early, but after a long blank period, it was not until the development of Fermat, Mason, Euler, Gauss, Riemann, Hilbert and others that number theory was gradually enriched.
In fact, everyone has been exposed to number theory for a long time, but no one knows that it is called number theory.
For example, a number, divided by 5 and left to 1, divided by 3 and left to 2, ask what is the minimum of this number?
The problem is very simple, using the general step-by-step satisfaction method, the number divided by 5 and the remainder of 1 is arranged from the smallest to the smallest, and then the smallest number divided by 3 remainder 2 can be found from it.
This is a number theory problem, involving Sun Tzu's theorem in number theory, also known as Huaguo's remainder theorem.
The book "Fundamentals of Number Theory" that Chen Zhou read was published by the Higher Education Press Press and written by Mr. Pan, a famous mathematician in China.
It mainly includes the divisibility of integers, number theory functions, some elementary results of prime number distributions, congruence, etc.
Starting from the basic nature of divisible, Chen Zhou was fascinated.
For example, there are infinitely many prime numbers, and these theorems that can be easily said are also proved in the book.
The study of knowledge needs to be from the shallow to the deep, to understand the most basic first, and then to study the deeper level.
Chen Zhou was watching with relish, but was interrupted by the voice next to him.
Chen Zhou turned his head to look, Zhao Qiqi and Zhu Mingli were passionately black, communicating frequently, and preparing to cross the tower.
Both of them, no, it was all three of them who brought their notebooks with them.
Chen Zhou looked at it for a few seconds, then withdrew his gaze and focused on the textbook in front of him again.
After reading it for a while, Chen Zhou closed the textbook and took the basin to wash.
When he came back, he found that Zhao Qiqi and the two had started a new game.
Chen Zhou asked, "Did you win just now?"
Zhao Qiqi replied while operating the hero: "That's a must, keep winning." I'm invincible!"
Zhu Mingli debunked him loudly: "It's not that my big brother on the top order can withstand it, you can output it under my crotch with peace of mind..."
Zhao Qiqi: "Yes, yes... Big brother is invincible... Hey, watch out for the hook..."
Chen Zhou smiled and stood behind the two of them and looked at it for a while.
At the end of this game, Zhao Qiqi turned his head and asked, "Chen Zhou, are you playing masturbation?" Hurry up the whole computer, turn around and open the black together?"
Chen Zhou replied: "I used to play, but now I basically don't play." You guys play, I'll go to bed first, I've been in the car for a day today, I'm too tired. ”
After speaking, Chen Zhou climbed onto his upper bunk.
Lying on the bed, Chen Zhou glanced at Zhao Qiqi and the two of them, who were playing energetically, and then silently planned the study time of the textbook.
At about 9 o'clock in the evening, Zhao Qiqi and the two finished the last fight and did not open it again.
Instead, he turned off the computer, washed up quickly, and went to bed.
Chen Zhou noticed that the two of them lost in the end.
The registration of new students lasted for two days, and then the counselor Huang Yemei held their first class meeting.
The School of Mathematical Sciences of Yan University has a total of five departments, only the Department of Mathematics is regarded as a category of basic mathematics, and the other four departments are the Department of Probability and Statistics, the Department of Information Science, the Department of Science and Engineering Computing, and the Department of Financial Mathematics, which basically belong to the category of applied mathematics.
There are nearly 200 freshmen in this class of 14 students, while there are only about 30 in the mathematics department, in one class.
When introducing himself at the class meeting, Chen Zhou found that most of the students in this class were sent through competitions.
It can be said that it is a gathering of talents.
After everyone introduced themselves, the counselor briefly talked about the school rules and discipline.
The class meeting is over, and the next few days will be the school's various orientation activities.
Like the opening ceremony, visit to the school history museum, entrance lectures, orientation parties, etc.
The main purpose is to help new students get to know the school, get familiar with the campus, and get familiar with new classmates.
In the midst of these activities, Chen Zhou's first class at Yan University also arrived.