In today's main class, only Xu Shaowen's Chinese class continues to teach him the true meaning of answering questions.

For other subjects, as soon as class started, the teacher sent out the test papers of last night's mixed exam.

The test papers of the mixed examination were only one night apart, and all the marks were completed.

Chen Zhou was the first to receive mathematics, and he scored 94 points.

Because of the reduced number of questions, mathematics is a paper with a full score of 100.

The same is true for the Science and Technology Complex, with a full score of only 200 points, 80 in Physics, 70 in Chemistry, and 50 in Biology.

Looking at this bright 94, Chen Zhou thought to himself, is this considered excellent?

After all, in terms of scores, it is more than 90% of the full score.

Of course, he just thinks about it, and he still knows it in his heart.

For an incomplete math paper, it is impossible for the system to count him as achieving a small goal.

Chen Zhou flipped the test paper to the end and looked at the function finale problem solved with advanced mathematical knowledge.

Wang Xuehui gave 14 points, full marks, and no points were deducted.

The corners of Chen Zhou's mouth hooked up a little, a little proud.

Zhang Yifan noticed Chen Zhou's appearance, followed his gaze, and said strangely in his heart: "Isn't it the last question that has been made, as for it?

However, when Zhang Yifan carefully looked at the answer written by Chen Zhou in the last question, a string of question marks surfaced in his mind: "What is this? Lagrange median value theorem? Who is Lagrange? How can he do this? This is also right?"

On the podium, Wang Xuehui began to explain the topic, and Zhang Yifan had to temporarily suppress the doubts in his heart and concentrate on listening.

When the class ended, he immediately asked Chen Zhou, "Chen Zhou, what are you writing here? What is this Lagrangian theorem, what is it? Can you still do this?"

Chen Zhou was slightly stunned and glanced at him.

Just as he was thinking about how to explain it, Li Xiang heard Zhang Yifan's voice, turned around, and asked, "Yifan, what are you talking about? What Lagrange? Who used this theorem?"

Zhang Yifan pointed to Chen Zhou's test paper.

Li Xiang took Chen Zhou's roll and rummaged back and forth.

"The last question. ”

"Oh. Turning to the last question, Li Xiang became more and more surprised.

After reading it, he raised his head and looked at Chen Zhou, and the admiration in his eyes became more and more intense.

"Why are you looking at me like this?" Chen Zhou got goosebumps when he was watched.

"Brother Chen, you are so powerful!" Li Xiang continued excitedly, "I only knew that you were good at Chinese and English, but I didn't expect that, Brother Chen, you are also so good at mathematics!"

Zhang Yifan was shocked by Li Xiang's exaggerated expression and tone, and couldn't help asking, "No, Li Xiang, what's wrong with Chen Zhou?"

At this time, Chen Haining also turned his head and looked at it curiously.

Li Xiang picked up Chen Zhou's test paper, put it in front of Zhang Yifan, pointed to the "Lagrangian Median Theorem" written by Chen Zhou and the corresponding formula, and explained: "This theorem can only be learned after going to university, and it belongs to the knowledge of advanced mathematics. The average high school student doesn't know it at all, let alone use it for problem solving. Moreover, if you use the knowledge of advanced mathematics to solve high school math problems, you must ensure that you are proficient in relevant knowledge and cannot write wrong at all, otherwise you will not get 1 point. ”

"?!" Zhang Yifan listened, looked at Chen Zhou, then at Li Xiang, and asked, "Li Xiang, how do you know this?"

"I will also know this theorem, but I don't dare to use it, I am not familiar with it, and I am afraid of making mistakes..."

Zhang Yifan and Chen Haining glanced at each other, and Chen Haining asked again: "No, according to what you say, this is not what we can understand now at all, where did you learn it?"

Li Xiang thought for a moment and asked, "IMO knows?

Zhang Yifan and Chen Haining shook their heads.

Li Xiang asked again: "Do you know about the National High School Mathematics Joint Competition and the Chinese Mathematical Olympiad?"

The two nodded: "But what does this have to do with advanced mathematics?"

Chen Zhou also looked at Li Xiang with interest, waiting for his explanation.

After all, Chen Zhou didn't know what the connection was.

Li Xiang continued: "The National High School Mathematics Competition is the most high-level mathematics competition in China's high school mathematics discipline. You can understand that it has a higher status than the mathematics competition organized by our own Anhui Province. ”

"Then, the approximately 400 students who have achieved outstanding results in this national competition will be eligible to participate in the Chinese Mathematical Olympiad, which is often referred to as CMO, sponsored by the Chinese Mathematical Society. ”

Then, about 60 students who have excellent grades in the CMO can enter the national training team. After the selection of the training team, 6 of the top performers will enter the Chinese national team and participate in the International Mathematical Olympiad, which is IMO..."

Chen Haining couldn't help but interrupt: "It sounds very powerful, but what does this have to do with that theorem?"

"Don't worry. Li Xiang glanced at him and continued, "Why do I want to talk about this IMO, because the advanced mathematical knowledge that ordinary high school students can't access is very common knowledge among IMO players. They don't know how much of this theorem of higher mathematics they learned in advance for the sake of competition. Like the Lagrangian median theorem used by Brother Chen, it is the knowledge that these players must be proficient in. ”

"Anyway, apart from the IMO players, I haven't seen a few people who can use these theorems in their entirety. Others, even if they understand, are not proficient in using it. Like me, he's a half-ass. So, you get the idea, right?"

After speaking, Li Xiang looked at Chen Zhou with hot eyes.

Chen Haining and Zhang Yifan were a little slower by half a beat, and then blurted out "it".

Dare to love, this is a player participating in an international competition?

Chen Zhou looked at the eyes of several people, he really didn't expect Li Xiang to say this, IMO player... Look at it high, look at it high...

After thinking about it, Chen Zhou said: "Don't look at me like that, I really haven't participated in this IMO." These... I said I taught myself, do you believe me?"

Seeing the suspicious eyes of the three people, Chen Zhou said again: "Uh... Come to think of it, if I were an IMO player, would I still be here?"

This sentence reminded the three of them, and when they were about to interrogate Chen Zhou again, the class bell rang.

The three of them had to give up for the time being and prepare for class.

Chen Zhou heard Chen Haining still whispering to Li Xiang again.

"Li Xiang, is this IMO really so strong?"

Li Xiang: "If you still don't understand, go back at night to check the gold content of IMO." ”

Chen Haining asked again: "Then you are also an IMO player?"

"No, I'm—" Li Xiang paused before he said, "Preliminary contestants..."

"Oh, that's fine. You and I are the same as Yifan. Chen Haining asked again, "Then you say, is Brother Chen really an IMO player?

Li Xiang replied: "Is this important? Do you think it is important that he can learn these theorems of advanced mathematics and use them proficiently, whether he is an IMO player or not?"

"Moreover, why do I say that if you use this to solve the problem, if you make a mistake, you will not get a point. In fact, this is the protection of ordinary students in the college entrance examination, and not everyone can have access to this knowledge. For the sake of fairness, it is necessary to limit and not use it indiscriminately. If you want to use it, you have to be proficient, otherwise you will do it honestly. You have to know that it is much more difficult to master it and not make mistakes at all than if you learn this theorem..."Li Xiang said this, and glanced at Chen Zhou again.

Chen Haining was stunned for a moment, and then suddenly realized: "That's what I said." It seems that Brother Chen has completely thrown us off... I used to think that Brother Chen was only excellent in Chinese, but later I found out that his English was also very good, but I didn't expect that his mathematics was better than Chinese English, and he went directly to the university's advanced mathematics..."

Chen Zhou: "......"