This was a real arithmetic question from last year's National Central University Independent Admissions Examination, and Yu Hua actually got a perfect score.
No one knows the weight of this full-score test paper better than Lin Wan. The arithmetic test paper at the end of last semester was only about 60% as difficult as this real test paper.
"It turns out you have been hiding yourself, which is interesting. I wonder what your results will be like in the first month's quiz..." Lin Wan looked at the neat and beautiful test paper, whispered to herself, and took a deep breath.
, cheered up, picked up the real test paper and returned to his seat. He put the English test paper aside and prioritized studying the essence of knowledge contained in this test paper.
As a top academic, she is very aware of the true value of this full-scoring test paper. She needs to learn the problem-solving ideas in it to improve her deficiencies in the field of arithmetic.
In Peking No. 4 Middle School, Zhao Anyuan ranked first in arithmetic and Lin Wan ranked second in arithmetic. However, starting from today, Yu Hua is the real No. 1 in arithmetic in Peking No. 4 Middle School in Lin Wan's heart.
Tomorrow is the first month's quiz for No. 4 Middle School, and Lin Wan is very curious about what Yu Hua's score will be.
The reading room on the second floor gradually became silent.
…
“I have read all the domestic and foreign mathematics textbooks in high school. Now I have thoroughly mastered all elementary mathematics knowledge points such as functions, derivatives, trigonometric functions and sequences. According to the current mathematics level and foundation, it is time to learn advanced mathematics.
If you want to learn advanced mathematics on your own, L'Obitat's rule and Lagrange's mean value theorem are a good starting point, and then transition from derivatives and definite integrals to calculus. Calculus is the basis of advanced mathematics and must be mastered."
After changing into casual clothes, Yu Hua left the school and walked on the road to Huangcheng Gen Bookstore. Having already fully mastered elementary mathematics, he was silently thinking about the learning path and researching the entry point for self-study of advanced mathematics.
Making decisions before taking action has always been Yu Hua's habit of doing things.
Advanced mathematics is based on calculus, with deep algebra and geometry as the extended structure. The three intersect with each other to form the overall knowledge of advanced mathematics. It is the basis of mathematical research. The main content involves calculus, space analytic geometry and linearity.
Algebra, series, ordinary differential equations.
This is the definition of higher mathematics in universities in later generations. In this era, the concept of higher mathematics has not yet been truly formed. The mathematical knowledge that engineering universities need to learn is mainly calculus, in-depth algebra and geometry.
Not too involved.
As we all know, all engineering students in later generations have experienced the full body massage of Calculus, especially the warm greetings of Calculus.
If you want to engage in mathematical research, advanced mathematics is the foundation, and the foundation of advanced mathematics is well-deserved calculus.
For Yu Hua, who wants to delve deeper into the field of mathematics, calculus is the first and most important difficulty on the road to self-study of advanced mathematics.
Beyond calculus, the road to high mathematics has been smooth all the way up to this point.
If you can't get past calculus, the road to advanced mathematics will be bumpy at every step, with obstacles everywhere.
The entry point for self-study of advanced mathematics has been figured out, but Yu Hua still has to face a more embarrassing problem, that is, the lack of advanced mathematics textbooks.
Well, it’s still a matter of textbooks.
Yu Hua needs an advanced mathematics textbook as a reference. Although the all-powerful Station B has a lot of content about advanced mathematics learning, in his previous life, he always liked to look through the video materials of various female teachers, plus the rooting alliance and the ghost zone.
I have never watched any serious academic information videos.
As for Zhihu, which has an average per capita of 985, Yu Hua, after passing the college entrance examination, has been obsessed with the opening line of "Thank you for the invitation, I am in the United States, I just got off the plane." He can't help himself, and he has no time to study advanced mathematics.
As for Tieba...
Is Tieba a place to learn advanced mathematics?
This old man is very nice to talk to. Yu Hua’s favorite place to visit is Che Guevara.
After the college entrance examination, he completely let himself go, which makes Yu Hua very embarrassed now. It is difficult for a clever woman to make a meal without straw. There are no advanced mathematics textbooks containing systematic knowledge, so he has learned nothing by himself.
Advanced mathematics textbooks that can be bought in any Taobao store in later generations are out-and-out scarce and precious books in this era. I have searched the bookshelves in the library of Peking No. 4 Middle School several times, but Yu Hua couldn't find anything about it.
Advanced mathematics readings and teaching materials.
Very magical.
It's also very...real.
In this era, are there any advanced mathematics textbooks?
have.
However, the situation is rather special.
According to memory, in the field of teaching materials, the field of Chinese education during this period has been in a very backward and closed state, especially arithmetic. There is no standard Chinese-English version of higher mathematics textbooks, and there is no unified national mathematics textbook. If we talk about high school
There can also be some high-quality textbooks translated from Chinese to English to improve students' mathematics level, but university-level mathematics textbooks are very embarrassing.
None of the domestic university mathematics textbooks are in Chinese. They are all foreign originals and adopted from American university textbooks.
There are none such as the widely circulated Tongji Advanced Mathematics, Tao Zhexuan's Real Analysis, and Mr. Hua Luogeng's Introduction to Advanced Mathematics.
Regardless of the sadness and far-reaching influence of all Chinese University textbooks being foreign originals, those things are too far away from Yu Hua. As far as the current situation is concerned, Western originals often mean rare and expensive. In theory, there are not many channels to obtain them. As far as Yu Hua can think of
There are probably three channels: one, buying textbooks through college students, two, going to the black market to find used books, and three, pirated books.
"First go to the Huangchenggen Bookstore and ask, and then you can look for it yourself, or you can ask someone to find a book. If it doesn't exist, then wait until the quiz is over and go find Mr. Hua Luogeng." Yu Hua rubbed his slightly swollen face.
On the forehead, I regret the time I spent studying teachers’ materials at Station B after passing the college entrance examination. If I had just randomly browsed a Tongji high-mathematics explanation brand, why would I have to worry about high-mathematics textbooks now?
However, the headache was a headache, and it only caused a little trouble for Yu Hua. Yu Hua did not panic.
It’s no big deal if you can’t buy textbooks or old books. Hua Luogeng, who just returned from abroad, must have them.
When the quiz ends at the end of the month, Yu Hua will have the confidence to go to Tsinghua West College to find Hua Luogeng with his arithmetic report card. By then, all problems will be solved.
In terms of mathematics, no one in this era can compare with Hua Luogeng.
As for when the quiz will be at the end of the month, well... it's tomorrow.
February 1937 only had 28 days, today is the last day, and tomorrow will be March.
As usual, Peking No. 4 Middle School will hold a school-wide quiz on the first day of every month to check students' learning levels.
After thinking about the field of study, Yu Hua stopped thinking about it and concentrated on his way.
The whole person shuttled through the narrow alleys in the north of the city, and after half an hour, they finally arrived at their destination.