Chapter 298

At 12 o'clock in the afternoon, the plane landed smoothly at Kyoto's Capital International Airport.

Cheng Nuo and Mu Leng went straight to Tsinghua University and Peking University in Zhongguancun.

The competition training is located on campus, and the accommodation is still in the dormitory.

Although it is still the seventh day of the Lunar New Year, the school has many students who apply to stay in school during the winter vacation, and the campus is not very deserted, and students who are hurrying on the road with books can be seen everywhere.

No, as soon as Cheng Nuo walked to the library with his suitcase, he saw an acquaintance walking out of it with a stack of books.

"Happy New Year, Senior Sister!" Cheng Nuo greeted with a smile.

"Huh?" Seeing Yu Luo tilt his head, he sighed lightly, "Didn't your freshman year start on the sixteenth day of the first lunar month?"

Cheng Nuo explained with a smile, "I signed up for this year's college student mathematics competition, so I returned to school early to participate in the training camp. ”

I heard that if you can get a good score in this competition, you will get a lot of points for both the research and the study abroad. Seeing Yu Luo, he smiled sweetly.

"Definitely. ”

After saying goodbye to seeing Yuluo, Cheng Nuo returned to the dormitory.

When you open the door, the room is naturally empty.

The other three roommates were enjoying their first vacation in college, but Cheng Nuo had to come to school before the Lantern Festival.

I called Professor Lu and told him that he had arrived at the school. I originally wanted to sleep and recharge for tomorrow's training camp, but remembering that I hadn't eaten lunch yet, Cheng Nuo asked Mu Leng out and found a high-end Western restaurant for a little sweetness.

No words for a day.

The next day, the eighth day of the Lunar New Year. The smell of the New Year has not yet dissipated.

Various stores in Kyoto, large and small, have already opened.

After a simple breakfast in the school cafeteria, Cheng Nuo rushed to the teaching building for intensive training.

Since the training camp coincided with the winter vacation, almost all the teaching buildings did not have classes arranged, so it was easy for the School of Mathematics to apply for the right to use the next building.

Tsinghua University has more than 100 students participating in the competition and training, including all four grades, but most of them are sophomores, accounting for more than 60. As for the seniors, there are not many idlers who have the ability to participate in the competition, so there are only five in total.

As for the freshmen, because the most basic advanced generations, counts, and solutions have not yet been learned, there are very few people who sign up for the competition.

The classrooms of the freshman and sophomore groups were in the lecture hall on the first floor, and when Cheng Nuo slowly swayed over, there was no place in the front row, so he casually found a place in the back row and sat down.

One of the main leaders of this training camp is Professor Lu. However, most of the lessons are taught by several teachers from the School of Mathematics in turn.

In this way, Cheng Nuo began the first competition training in his life.

......

Seven days later, the Lantern Festival.

The training camp has all ended, and Cheng Nuo has gained a lot.

Professor Lu found Cheng Nuo, "The first round of preliminary rounds will be held in three days, do you have any confidence?"

Cheng Nuo's tone was confident, "No problem." ”

Lantern Festival, but Cheng Nuo is adrift in a foreign land.

In the evening, he bought a pack of rice balls at the supermarket and risked being caught by the uncle downstairs to cook a bowl of hot rice balls from a rice cooker borrowed from another dormitory. On the table, there is also a specialty brought by Cheng Nuo from his hometown - Laoshan white flower snake grass water.

So, in Cheng Nuo's nineteen-year-old Lantern Festival, he spent it lonely and cold.

............

Another three days.

When the students began to return to school one after another, Cheng Nuo and his group of more than 100 people took several buses to the location of the preliminary competition.

The preliminary round of the National University Student Competition is held in different divisions. As with the format of the High School Math League, only students who won the first prize in the preliminary round are eligible to participate in the finals.

The Kyoto Division, due to the existence of a large number of institutions of higher learning such as Tsinghua University, Peking University, and Beihang University, has always been the most tragic competition area, and there is no one.

At 9 o'clock in the morning, under the leadership of Professor Lu, more than 100 people arrived at the test center in the Kyoto Division of Kyoto Normal University.

After checking the documents for the exam, Cheng Nuo was allowed to enter the examination room.

At half past nine in the morning, the exam began.

The exam lasts 180 minutes and allows for early submission.

The question types of the preliminary round include four fill-in-the-blank questions and five major questions. The total score is 100 points. Although the amount of questions is small, the difficulty of each question is definitely worthy of the National College Student Mathematics Competition.

The first time he got the test questions, Cheng Nuo first swept the nine questions from beginning to end.

Decent!

This is Cheng Nuo's judgment for a moment. The question types and test points of the test questions are not much different from those of previous years, but there are slight changes in the specific questions, and the whole can only be regarded as decent.

Since this is the case, for Cheng Nuo, the challenge is lost.

"I hope the questions in the final will be a little more challenging. ”

Muttering in a low voice, Cheng Nuo lowered his head and began to answer the question.

[Let the real square matrix H1=(0,1|1,0),Hn+1=(Hn,I|I,Hn),n≥1, where I is the same order square matrix with the same unit as Hn, then rank(H4)=______]

The test point of this question is related to the knowledge points of the diagonal square.

Whew!

Cheng Nuo wrote the steps to solve the problem on scratch paper: [Hn is a symmetric square matrix of order m=2^n, then there will be an orthogonal square matrix P such that ...... To get the answer, rank(H4)=10. 】

Three minutes, that's it, next question!

............

Outside the examination room, the rest area of several school leading teachers.

Professor Lu from the School of Mathematics at Tsinghua University and Professor Liu from the School of Mathematics at Peking University sat together.

Professor Liu laughed, "Old Lu, I didn't expect you to lead the team this year." ”

Professor Lu glanced at him coldly, "It's as if you weren't the one who led the team last year." ”

"Ahaha!" Professor Liu didn't feel the slightest embarrassment, "But I was the one who won the bet last year, so I don't mind doing it again!"

Last year, Professor Lu and Professor Liu also led the team from the two universities. The two made a bet about that competition.

In the end, whichever university has the most first prize in the competition wins.

The bet is that the loser will take a month's free class for the graduate student led by the other party. That's what Professor Liu is looking at. Although the Department of Mathematics at Peking University ranks first in the country, the professors hired are not all-encompassing in all fields of mathematics. In the field of functionals, it can be regarded as a shortcoming of the School of Mathematics of Peking University.

Functional analysis is an unpopular field in China, and there are few professors in this field.

However, Professor Lu is a great expert in the field of functional functions, and his attainments in functional analysis are among the top in the country.

Therefore, Professor Lau used the agitation method to get Professor Lo to agree to the bet last year.

And as a result, naturally, there were no surprises.

In terms of strength, the School of Mathematics of Peking University is stronger than the School of Mathematics of Tsinghua University. In the end, Peking University won eight first prizes in the competition and six first prizes in Tsinghua University.

Genius one second to remember the address of this site:. Mobile version reading URL: m.