Chapter 295

At 12:00 p.m., the plane landed smoothly at the Capital International Airport in Kyoto.

Cheng and Mu ran straight to Tsinghua and Peking University in Zhongguancun.

The venue of the competition and training is in the school, while the accommodation is still in their dormitories.

Although it is still on the seventh day of the new year's day, there are many students who apply to stay in the school during the winter vacation. The campus is not very cold and the students with books are everywhere.

No, Cheng Nuo just took the suitcase to the library when he saw an acquaintance coming out with a pile of books.

"Happy new year, sister!" Cheng Nuo said hello with a smile.

"Eh?" See feather Luo slant a head, light Yi a, "your freshman is not on January 16 just start school?"

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

"Well! You have to refuel! I've heard that if you can get good results in this competition, you'll get a lot of points, whether it's postgraduate or studying abroad. " See Yu Luo sweet smile.

"Certainly."

Farewell to see Yu Luo, Cheng Nuo returned to the dormitory.

Open the door and the room is empty.

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

I contacted Professor Lu by telephone and told him that he had arrived at the school. Originally, I wanted to sleep for tomorrow's training, but when I remembered that I hadn't eaten lunch, Cheng Nuo asked mulen out and found a high-end western restaurant for a little sweet.

A day without a word.

The next day, the eighth day of the lunar new year. The flavor of the new year has not gone.

Kyoto stores, large and small, have opened in succession.

After a simple breakfast in the school dining room, Cheng Nuo rushes to the teaching building for training.

As the training time is just the winter vacation, almost all the teaching buildings have no courses, so it is easy to apply for the right to use the next building.

There are more than 100 students from all four grades of Tsinghua University Participating in the competition. However, the majority of them are sophomores, accounting for more than 60. As for senior students, there are not many idle people who can participate in the competition, so there are only five in total.

But freshmen, because the most basic advanced generation, several points, solution is not finished, so the number of applicants is also very few.

The classrooms of the freshmen and sophomores are on the first floor of the staircase classroom. When Cheng Nuo slowly wanders over, there is no seat in the front row. He casually finds a seat in the back row.

One of the main leaders of the training was Professor Lu. However, most of the courses are taught by teachers from several colleges in turn.

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

……

Seven days later, the Lantern Festival.

Training has been all over, Cheng Nuo harvest is full.

Professor Lu found Cheng Nuo, "three days after the first round of preliminary competition, do you have confidence?"

Cheng Nuo tone confident, "no problem."

On the Lantern Festival, Cheng Nuo is wandering in a foreign land.

In the evening, he bought a bag of dumplings in the supermarket and cooked a bowl of hot dumplings with the rice cooker borrowed from other dormitories, risking being caught by the uncle downstairs. On the table, there is also a special product from his hometown, Laoshan White Snake water.

So, in Cheng Nuo's 19-year-old Lantern Festival, so 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 preliminaries of the National College Students' competition are held in different divisions. Like the competition system of high school mathematics league, only students who have won the first prize in the preliminary competition can be qualified to participate in the final.

The Kyoto division, due to the existence of a large number of institutions of higher learning such as Tsinghua University, Beihang University and so on, has always been the most fierce competition area.

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

After checking the examination papers, Cheng was released into the examination room.

It's half past nine in the morning.

The examination time is 180 minutes, and it is allowed to hand in the paper in advance.

There are four blank filling and five big questions. The total score is 100. Although the number of questions is small, the difficulty of each topic is absolutely equal to the National College Students' mathematics competition.

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

In order!

This is Cheng Nuo's judgment for a moment. There is little difference in the type of test questions and the test points compared with those in previous years. Only slight changes have been made in specific topics. Generally speaking, they can only be regarded as regular.

In this case, for Cheng Nuo, he lost the difficulty of the challenge."I hope the title will be more challenging in the final

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

Let H1 = (0, 1 | 1,0), Hn + 1 = (HN, I | I, HN), n ≥ 1, where I is a square matrix of the same order with HN, then rank (H4)=______ 】

the test point of this question is related to the knowledge of diagonal matrix.

Shua Shua Shua!

Cheng Nuo wrote on the paper the steps to solve the problem: "HN is a symmetric matrix of M = 2 ^ n, then there will be an orthogonal matrix P such that The answer is: rank (H4) = 10. 】

three minutes, finish, next question!

…………

Outside the examination room, a rest area for several school leaders.

Professor Lu of the school of mathematics of Tsinghua University and Professor Liu of the school of mathematics of Peking University sit together.

Professor Liu said with a smile, "Lao Lu, I didn't expect you to lead the team this year."

Professor Lu gave him a cold glance. "It's like you didn't lead the team last year."

"Ah ha ha!" Professor Liu didn't feel embarrassed at all, "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 were also the leaders of the two universities. The two men made a bet on the competition.

In the end, the university that wins the first prize will win.

And the bet is that the loser will take a month's class free of charge for each other's graduate students. This is what Professor Liu values. Although the Department of mathematics of Peking University ranks first in China, the professors employed are not omnipotent in all fields of mathematics. The functional field is a weakness of the Institute.

Functional analysis is a rare field in China, and few professors have studied it.

However, Professor Lu is an expert in the field of functional analysis, and his attainments in functional analysis are in the forefront of the country.

Therefore, Professor Liu used the method of encouraging Professor Lu to agree to the bet last year.

As a result, of course, there was no accident.

In terms of strength, the University of mathematics is stronger than Tsinghua University. In the end, there were eight first prize winners from Peking University and six first prize winners from Tsinghua University.

www.novelhold.com , the fastest update of the webnovel!