"The first prize winner of the National Collegiate Mathematics Competition? Professor Wu's students? ”

Hearing the addition of Li Qing's identity by the person behind him, a gleam flashed in Zhang Jing's eyes. He didn't care about Wu Bingbai's identity as a student, but he had to care about the identity of the first prize winner of the National College Student Mathematics Competition.

In 2009, TheChineseMathematicsCompetitions (CMC) was launched. As a national high-level discipline competition for undergraduates, the National Undergraduate Mathematics Competition provides a stage for young students to demonstrate their basic mathematical skills and mathematical thinking, and accumulates research materials for discovering and selecting outstanding mathematical talents and further promoting the reform and development of mathematics curriculum construction in colleges and universities. It is a sign of the math competition. It is also a place where geniuses gather.

Being able to enter the finals of the National Collegiate Mathematics Competition and win the first place has proved Li Qing's genius. After all, the National Mathematics Competition is not simple, although it was held relatively late, in 2009, but since its birth, the influence is huge.

All colleges and universities in the country, as well as military academies and academies of the armed forces, have joint participation. Even, its competition organizing committee is headed by an academician, and the other team members are also well-known professors, scholars, honorary or in-service professors of many universities.

Such a competition has been valued by the whole country from the beginning. There are no more contestants who sign up for this competition every year, not to mention that the number of participants can be compared with the college entrance examination, but if it is said that it can reach one-tenth of the college entrance examination, there is no problem at all.

won the championship among so many people, and it is not surprising that Li Qing has such a strong popularity among a group of top students, nor is it blamed that he will be accepted as a student by Wu Bingbai.

After winning the championship of the National Mathematics Competition, Li Qing has long been familiar with his reputation among the top students. So the little commotion in the audience didn't have the slightest impact on him, he still said with a flat expression: "Don't talk nonsense, I know the purpose of your coming here today, if you want to join the math club, let's pass the test of the math club first!" ”

As soon as the words fell, several whiteboards entered outside the door in turn.

Of course, it is impossible for the whiteboard to walk into it by itself, but to be carried by someone.

There are four people next to each whiteboard, and although the whiteboard looks large, the weight is not too heavy. Even with the body of a group of scholars, there is not much pressure on the four of them. A group of people easily carried the whiteboard to the inside of the math club.

After entering, several whiteboards surrounded the city in a circle and put down.

I have to say that the area of the whiteboard is not small, and several whiteboards completely surround Wang Ning's group of people in a circle, and standing in the circle, people can't help but feel a certain sense of depression.

However, the top students who came to the math club didn't care, they were all attracted by the questions on the whiteboard.

"Set up the ∈ r,...... Damn, what the hell, can you really understand these heavenly characters? ”

Not everyone in the crowd was ready to join the math club, and there were a small number of people who were just going to watch the excitement. Mathematics itself belongs to the occult, and it has its own circle, which is difficult for outsiders to understand.

The same is true for students in schools, and the requirements for higher mathematics vary between different majors. Just like now, some people can't even understand the same topic. Not to mention knowing the meaning of which symbols.

For these students, the other top students didn't even bother to look at them. People who are not in the world at all waste time by looking at them, and their attention is all focused on the topic.

"Set up "厶l・∈r," "夙." cr is the set of two matrices on the number field F, and they are said to be similar on F: if there is an invertible matrix P on zàiF that is independent of i∈I such that P-P = Ma, V∈r. Proof that if they are similar in the field of real numbers R, then they are also similar in the field of rational numbers Q...... I'm so familiar with this question, I vaguely seem to have seen it somewhere! ”

Beside Wang Ning, a student with a delicate face, but a little pale face, with thick glasses, muttered.

"Me too, the second question I've definitely seen somewhere. Suppose the function f(x) is continuous on [0,1], and is second-order derivable in (0,1), passing through the point A(0,f(0)), and the straight line with the point B(1,f(1)) intersects the curve y=f(x) at the point C(c,f(c)), where 0