"Yu Lei, if the properties 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)?"

On the third day of the training camp of the Olympiad national team, Director Liu wiped the blackboard and knocked on the blackboard, and today it was his turn to talk about algebra, and he was the coach in charge of algebra.

"Equal to...... 1?" team member Yu Lei replied without confidence.

"Why do you think about it for so long!" Director Liu scolded, "Yu Lei, I really don't know how you were selected for the national training team? Okay, U(ε,ζ)=1, then I enclose (ε,ζ) in a circle, and then exclude it from the integral region, so when this circle shrinks to (ε,ζ), it can be obtained from the generalized Green's theorem?"

"Gotta gotta get it...... Get it?" Yu Lei was dumbfounded, and he spoke in a trembling voice.

"Idiot!" Officer Liu yelled, and he asked, "What?"

Yu Lei: "Gotta get it...... Gotta gotta get ......"

"Forget it, sit down, it's only a shame for you to go to the international arena at your level. Director Liu shook his head in disappointment.

Yu Lei sat down, looking demented, still trembling quietly: "Gotta gotta get it...... Gotta ......"

"Hey. Shen Qi couldn't bear to sigh, it's over, this guy is crazy.

"Zhou Yu'an!" Officer Liu called the name of another team member.

Zhou Yu'an stood up nervously.

Mr. Liu asked: "Continuing from the previous question, if the function v is a Green's function, then what can be obtained by appending the condition that v is 0 on the R boundary to the definition of the Green's function?"

Zhou Yu'an scratched his ears and cheeks, puzzled.

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

Zhou Yu'an went from nervous to frightened, and finally laughed weirdly: "Hehe." ”

"What?" said Director Liu's face sank.

"Hehe, hehehe. Zhou Yu'an smirked.

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

Zhou Yu'an sat down, like the second fool at the entrance of the village in the rural movie: "Hehe, hehe, hehehe." ”

"Hey. Shen Qi couldn't bear to look at it directly, and when it was over, he was stupid again. Director Liu is really ruthless, and a team member is crazy in an algebra training class, and he is a fool. Is this a training camp or a concentration camp?

"I'm...... I...... I...... I'll take some medicine later. Director Liu's heart ached faintly, and he quickly took out the medicine bottle and knocked a heart-saving pill.

"I can't be excited, I can't be angry, I can't be stimulated, I beg you, can we fight for breath?"

Brush Brush Brush!

Officer Liu picked up the chalk and wrote the blackboard, writing down a new style.

"Can anyone tell me how to transform this second-order equation into a first-order equation in the simplest and most effective way?"

Five seconds passed, and no one raised their hand.

"A bunch of ...... Idiot!" Director Liu turned on the group mocking mode.

Ten seconds passed, and Shen Qi raised his hand.

"Shen Qi?" Seeing Shen Qi raise his hand, Director Liu said, "Shen Qi, wait a minute." ”

knocked another heart-retaining pill, and Director Liu's whole person was relaxed: "Shen Qi, you can say it, or come up and write." ”

"I'll write it. Shen Qi walked up to the podium, picked up half a piece of chalk and wrote.

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

Do the following calculations

......

DY/DX

Fixed constant α

Thus eliminating the exponential factor......

......

Then transform z=dv/dt

Convert the second-order equation to the first order

Finished

After Shen Qi finished answering, the chalk was gently put into the blackboard slot, and he returned to his position and sat down.

"Gotta ...... Yu Lei, who has always "gotten it", lit up his eyes and returned to normal.

"Huh...... Hehe, yo, it can be transformed like this!" Zhou Yu'an no longer smirked, he gained inspiration from Shen Qi's answer.

"Yes, Shen Qi's brain is very bright. After all, Director Liu took medicine and was resistant, and he praised Shen Qi a lot, and he did not have any heart discomfort.

This algebra training session is finally over, and no team member is going crazy and stupid anymore.

At lunchtime, Yu Lei and Zhou Yu'an were on both sides of Shen Qi.

"Shen Qi can, after all, he is a gold medalist in the national final, and he is very powerful. Yu Lei said.

"It's not just a gold medal, it's a perfect score. Zhou Yu'an added.

Shen Qi is neither proud nor too modest: "It's okay, what about you two, why haven't I seen you in this national decision?"

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

Zhou Yu'an: "I participated in the Wisdom Cup and won the championship. ”

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

"Yes. Yu Lei nodded, "But the level of the Mathematics Elite Cup and the Wisdom Cup cannot be compared with the National Finals of the Digital Federation, Shen Qi, you have the highest gold content in the National Finals." ”

China has a vast territory, so many people and so many students, and the math competition in high school is not only a number of colleges.

If the Digital League belongs to the top league of the Premier League, then the Mathematics Elite Cup and the Wisdom Cup belong to the Bundesliga and Ligue 1, and the grade is slightly lower.

Champions from various leagues have come together to form this Olympiad national training team.

"In other words, the training method of the national training team is quite perverted, this is 15 days of assault training, if it is extended to 1 month, I don't think anyone can leave the training camp alive. Shen Qi didn't like the training mode of the national team very much, but in order to fight for an IMO place, he chose to be patient.

"Hopefully it's over soon. Yu Lei was a little tired.

"Me too. Zhou Yu'an sympathized with the same illness.

"It's all here, we still have to hold on to the end. Shen Qi took a bite of white rice.

After a short lunch break, the afternoon was followed by a probability theory training session.

This is followed by a daily routine test in the evening.

A test is an exam, and after a daily training session, each team member makes a paper with a full score of 100 points.

After three consecutive days of testing, Shen Qi ranked first among all the team members with 297 points.

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

The following week, two more players left the team.

One is a physical problem, and the other is a psychological problem.

There are 17 players left to hold on.

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

Shen Qi found that it was getting more and more difficult to get a full score, and the more difficult the test became, the coaches could always find fault and deduct a few points from him.

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

Among these 14 people, the six people with the highest total score in the test were selected for the official list of the Olympic national team.

Shen Qi's name is on the list.

On July 23, more than 10 members of the Chinese Mathematics Olympiad team flew to the United Kingdom by plane.

A new challenge is coming, and Shen Qi is ready.