In the next few days, the Peking University Mathematics Camp entered the regular training mode, and Sun Erxiong was responsible for teaching.

The teaching content includes calculus, spatial analytic geometry, linear algebra, infinite series, ordinary differential equations, etc., in fact, the course of advanced mathematics is taught in advance.

The course of advanced mathematics itself is general, and so many branches such as calculus, spatial analytic geometry, linear algebra, infinite series, ordinary differential equations, etc., are combined to form an advanced mathematics course, and each of these branches can be written into a separate book.

Although it is a general talk, it is impossible for Sun Erxiong to finish the two volumes of high mathematics in detail in a few days, he mainly explains the essence and guides the direction.

Before entering the camp, most of the 26 students had learned mathematics outside of high school textbooks, either by themselves or under the guidance of their respective math team teachers.

Sun Erxiong is still very level, Shen Qi has already finished teaching himself high mathematics, and he still listens with relish.

Shen Qi likes Sun Erxiong's highly condensed and fast scanning teaching method, who wants to finish the upper and lower volumes of high mathematics in a year, Shen Qi really doesn't have the patience to listen.

A week passed in the blink of an eye, and it was early November.

The math camp ushered in an exam, each student made a paper, with a full score of 200 points, and the test content included 10% high school mathematics, 70% advanced mathematics, and 20% more advanced content than advanced mathematics.

After the test paper was corrected, Sun Erxiong took the report card and took a look: "Shen Qi scored 200 points, impeccable." The second place is actually Zhou Yu'an, with 188 points. ”

"Zhou Yu'an has been selected for the Olympic national team, Shen Qi's teammate, and an IMO gold medalist. Assistant Qian Fang carried a small notebook with him, and only he could understand what was recorded in this small notebook.

Sun Erxiong patted his head: "Oh, is it...... Yes, this young man Zhou Yu'an is from the national team, he has a lot of words, but he can't always say the key points. ”

"Ou Ye, who has a strong ability in quick arithmetic and mental arithmetic, scored 182 points and was fifth. Qian Fang said again, he flipped the small book to a certain page: "After this week's observation and testing, and after calculating the weight score, Shen Qi temporarily ranked first in comprehensive ability, with 9.7 points. In second place is Zhang Siyu, with a score of 8.5, he is very average, with no outstanding highlights and no fatal shortcomings. Zhou Yu'an ranked third with 8.4 points, and if it weren't for that minus 10 points, Zhou Yu'an could have risen to second. Ouye is fourth with a score of 8.3, and her strengths and weaknesses are equally obvious. ”

"Well, Xiaoqian, you use data to speak, and I have a similar evaluation through intuitive feelings. Sun Erxiong nodded and asked, "What do you think of Xiaoqian, which direction is suitable for a student like Ou Ye, who has the same obvious advantages and disadvantages?"

"Number theory direction, right?" replied Qian Fang noncommittally.

"What about Zhou Yu'an?" Sun Erxiong asked again.

"Zhou Yu'an and Zhang Siyu are the same type, so let's train them according to the regular route of the Department of Mathematics. Qian Fang replied in the affirmative this time.

"So Xiao Qian, Shen Qi, who ranks first in your scoring system in terms of comprehensive ability, in which direction is he suitable for training?"

"This ...... I can't say for sure at this time. ”

……

While Sun Erxiong and Qian Fang were discussing, Shen Qi walked out of the gate of Peking University alone.

Today's math camp has a rare half-day rest, Shen Qi has not been out of Peking University this week, and he wants to go out for a walk.

Walking around, Shen Qi passed by Tsinghua University.

There seemed to be an invisible force pulling Shen Qi, and he walked into the Tsinghua campus for some reason.

Tsinghua once left a beautiful and deep memory for Shen Qi, he lived in the Tsinghua dormitory for a week, won the national final championship in Tsinghua Park, and then was selected for the national team, all the way to London to bring back the IMO perfect score gold medal.

"I thought I would come to Tsinghua University, but I didn't expect to end up at Peking University. ”

Wandering in Tsinghua Park, Shen Qi's feelings are different.

The summer flowers that bloomed at that time are now withering, and the autumn wind blows cool.

The ghost sent the gods, and Shen Qi came to the lake.

A few months ago, Shen Qi met two forced kings of Tsinghua University, a man and a woman, here, and he will never forget the abnormal forced king of that day for the rest of his life.

The lake is still the same lake, the stone bench is still the same stone bench, but the withered leaves remind Shen Qi that in autumn in the Northern Hemisphere, is the non-inertial deviation of the earth's revolution the same as in summer?

Shen Qi sat down on the stone bench and picked up a branch casually, if the branch is used to make a simple Bravi pendulum pendulum, how should the thermal expansion coefficient be corrected?

Shen Qi looked at the lake, his eyes were erratic, he looked around and seemed to be looking for someone, what about the 2-meter-tall king?

Suddenly, I saw a beautiful figure flashing in front of Shen Qi's eyes, and a girl was running around the lake to exercise.

"Hey, Miss 170!" Shen Qi slapped his thigh, acquaintance.

The running girl stopped, she had neat short hair, and looked at Shen Qi suspiciously: "This classmate, who are you?"

"Senior sister, why did you cut your hair?" Shen Qi broke the branch in his hand, thinking that this young lady still looks good with long hair.

"Do we know each other?" Tsinghua female college students don't remember such a person as Shen Qi.

"Senior sister, your IQ is as high as 170, and a few months ago I borrowed a few hairs for a very tall senior brother to make a Bravi pendulum. Shen Qi said.

"Oh...... Oooh. The female college student suddenly realized and asked, "This junior brother is a freshman this year, which major?"

Shen Qi pointed to the distance: "Mathematics major." "Hey, the young lady doesn't care about IMO? Think about it, why does Tsinghua's IQ170 female coercion pay attention to the math competition of high school students?

"Mathematics major, awesome, come on, junior brother!" the female college student made a starting gesture after speaking, ready to continue running.

"Senior sister, wait a minute, may I ask what is that very tall, about 2 meters tall? Shen Qi asked.

"He's ......" The female college student showed a complicated and strange expression, and some regret.

He ...... What's wrong with him?" Shen Qi was shocked, the 2-meter male forcing king wouldn't hang up, right?

"He took a leave of absence. The female college student said lightly.

"It's okay, it's just a suspension. Shen Qi took a long breath and asked again, "Why did you suspend school?"

The female college student sighed: "Hey, I'm sick, go home to recuperate." ”

Shen Qi: "What's the disease?"

College Girl: "Capgra Syndrome." ”

"Walter ......" Shen Qi was very surprised, his mother is a doctor, he seems to have heard of such a symptom, Capgra syndrome, this seems to be a mental illness!

"Capgra syndrome is a delusional disorder, and the medical explanation is that people with Capgra syndrome believe that many people around them are actually disguised as the same person, and that the patient himself can separate multiple personalities...... Hey, it's a pity, he's a brilliant and cutting-edge talent, and the scientific research project he followed up is about to produce results, which is a pity. The female student shook her head, and then ran, running farther and farther.

Shen Qi also ran, running faster and faster, and in a blink of an eye, he ran out of the Tsinghua school gate and returned to Peking University.

"Fortunately, I chose Peking University. Shen Qi slipped into the dormitory of Peking University in one breath, frightened.

The hand that took out the key to the door of the dormitory trembled slightly, and Shen Qi took out the door key from his trouser pocket several times, and the moment he opened the door, Shen Qi found that a courier envelope was stuffed in the crack of the door.

Picked up the courier envelope and took a look, the recipient was Shen Qi of the XX dormitory of Peking University, and the sender was Jia Baojian of the editorial department of the "Mathematical Innovation News".

"It's great that my math paper has finally been published, and this is the only thing that can surprise me, and this day has been a real surprise. ”