"Yu Lei, if the characteristics of this conjugate equation are the same as v=Ulogr+V, and U and V are continuous in the region R, then what is U(ε,ζ) equal?"

On the third day of the training of the national Olympic team in Mathematical Olympiad, Director Liu knocked on the blackboard with a blackboard. Today it was his turn to talk about algebra, and he was the coach in charge of algebra.

"Equal to...1?" Team member Yang Rui answered without any confidence.

"Why do you think for so long?" Liu Jianshi scolded, "Yang Rui, I really don't know how you were selected into the national training team? OK, U(ε,ζ)=1, then I will surround (ε,ζ) in a circle and then remove it from the integral area. So when this circle shrinks to (ε,ζ), can I get it from the generalized Green's theorem?"

"Get to get it...get to get it?" Yu Lei was dumbfounded and trembled when he spoke.

"Idiot!" Secretary Liu shouted, and he asked, "What do you need?"

Yu Lei: "Get get it...get it get it..."

"Forget it, sit down. It will only be embarrassing to go to the international arena at your level." Director Liu shook his head in disappointment.

Yu Lei sat down, looking demented, still trembling: "Get done...Get done..."

"Oh." Shen Qi sighed unbearably. It's over, this guy is crazy.

"Zhou Yu'an!" Director Liu pointed out the name of another team member.

Zhou Yuan stood up nervously.

Secretary Liu asked: "Continuing the previous question, if function v is a Green function, then what can I get by attaching the condition that v is 0 on the R boundary to the definition of Green function?"

Zhou Yuan scratched his ears and his face was puzzled.

"Zhou Yu'an, I'll ask you what you can get!" Director Liu roared angrily.

Zhou Yuan went from nervous to panic, and finally laughed strangely: "Haha."

"What do you get?" Director Liu's face sank.

"Hehe, hehe." Zhou Yuan smirked.

"Forget it, sit down, the national team of Mathematical Olympiad is ashamed of you." Director Liu was angry and helpless.

Zhou Yuan sat down, like the second fool at the entrance of the village in the countryside movie: "Haha, hehe, hehe."

"Oh." Shen Qi couldn't bear to look at him. After finishing, he was stupid. Director Liu was really cruel and ruthless. He made a team member crazy in an algebra training class and made him stupid. Is this a training camp or a concentration camp?

"I'm so angry...I...I...I'll take some medicine later." Director Liu's heart ached faintly. He quickly took out the medicine bottle and knocked a heart-protecting pill.

"I cannot be excited, angry, or stimulated. Dear boys, I beg you, can we fight for the breath?" Secretary Liu was angry that he did not fight and used the method of provoking.

Brush!

Secretary Liu picked up the chalk and wrote a quick pen on the blackboard, writing a new formula.

"Can anyone tell me how to transform this second-order equation into first-order in the simplest and most effective way? Please raise your hand if you know how to do it?" Liu no longer pointed out the name of a player alone, but asked questions to all the players.

Five seconds passed, no one raised his hand.

"A group of... idiots!" Director Liu started the group ridicule mode.

Ten seconds passed, and Shen Qi raised his hand.

"Shen Qi?" Seeing Shen Qi first raised his hand, Secretary Liu said, "Shen Qi, wait a moment."

After another heart-preserving pill, Director Liu felt relieved: "Shen Qi, you can tell me, or you can write it up."

"I'll write." Shen Qi walked up to the podium, picked up half of the chalk and started writing.

Let ax^mdx^p=y^ndy^p-2d^2y

Do the following calculation

...

Get dy/dx

Fixed constant α

Thus eliminating the index factor...

...

Change z=dv/dt again

Turn the second order equation into first order

Explanation

After Shen Qi finished the answer, he gently put the chalk into the blackboard slot and returned to his seat.

"Get...get it!" Yu Lei's eyes lit up and returned to normal.

"Haha...hehe, hehe, it can be transformed like this!" Zhou Yuan stopped giggling, and he gained inspiration from Shen Qi's answer.

"Yes, Shen Qi's mind is very smart." After all, Director Liu took the medicine and was resistant. He praised Shen Qi very much and did not experience any heart discomfort.

This algebra training class was finally over, and no team members went crazy and stupid anymore.

During lunch, Yu Lei and Zhou Yu'an were guarding both sides of Shen Qi.

"Shen Qi is OK, after all, he is a gold medal player in the national finals and is very powerful." Yu Lei said.

"It's not only a gold medal, but also a full mark." Zhou Yuan added.

Shen Qi is not proud or overly modest: "It's okay, what about you two, why haven't you seen you in this National Final?"

Yu Lei: "I was selected into the training team through the Mathematics Elite Cup."

Zhou Yuan: "I participated in the Wisdom Cup and won the championship."

"Oh, Yu Lei is also the champion of the Mathematics Elite Cup, right?" Shen Qi asked.

"Yes." Yu Lei nodded, "but the levels of the Mathematics Elite Cup and the Wisdom Cup cannot be compared with the United Nations League Finals. Shen Qi, the full score gold medal in the National Finals, has the highest gold content."

China has a vast territory and a vast territory, with so many people and so many students. The mathematics competition in high school is not just a few links.

If the SUN League belongs to the top league in the Premier League, then the Mathematics Elite Cup and the Wisdom Cup belong to the Bundesliga, and the Ligue 1 level is slightly lower.

Champions from various leagues gathered together to form this national training team for the Mathematical Olympics.

"By the way of training in the national training team is quite perverted. This is 15 days of attack training. If it is extended to 1 month, I think no one can leave the training camp alive." Shen Qi very much dislikes the training model of the national team, but in order to win an IMO place, he chose to endure it.

"I hope everything ends soon." Yu Lei looked a little tired.

"So too." Zhou Yuan felt sorry for each other.

"We've come here, we still have to stick to the end." Shen Qi took a mouthful of white rice.

After a short lunch break, a probability theory training class was held in the afternoon.

Then, the daily routine test was performed at night.

Test is an exam. After every training class every day, each team member will make a paper, and the full score is 100 points.

After three consecutive days of exams, Shen Qi ranked first among all the players with 297 points.

He finally missed once, and was deducted 3 points in yesterday's test and did not get a full score.

In the next week, two more players left the team.

One is physical problems and the other is psychological problems.

There are still 17 players left to persevere.

In the past 10 tests, Shen Qi continued to lead the way with a total score of 985.

Shen Qi found that it was getting more and more difficult to get full marks. The more difficult it was to get later tests, the more difficult it was. The coaches always pick some problems and deduct him a few points.

Finally, the 15-day intensive training ended, and there were 14 players left to the end.

Among these 14 players, the six with the highest total score in the test were selected as the official list of the national team of the Mathematical Olympics.

Shen Qi's name is on the list.

On July 23, a group of more than ten people from the Chinese Mathematical Olympiad team flew to the UK by plane.
Chapter completed!