Chapter 71
Chapter 71 Directional recommendations
During lunch, Sun Erxiong didn’t discuss any specific mathematical problems with Shen Qi, and they spent most of their time at home.
“Shen Qi, what are your parents’ occupations?”
“My dad is a small business, and my mom is a doctor.”
“It seems that your family is in good condition, what about your grandparents’ generation?”
“Professor Sun, do you have to check your household registration when you come to Yan University? My grandparents are all workers, and my grandparents are all doctors.”
“Very good, good, your father’s roots are Zheng Miaohong, your mother’s medical family, then Shen Qi, why did you choose mathematics?”
“Learning mathematics, physics and chemistry well, you are not afraid to travel all over the world.”
“Very official answer, but I believe it. Are you used to life in the north?”
“Even if the road to school is more difficult, I will go on. In fact, the north is pretty good, but it’s dry. I haven’t had a bowel movement for three days, and I can’t get it out.”
“Shen Qi, I’m eating dumplings!” Sun Erxiong stuck a mouthful of dumplings in his throat, struggling to advance and retreat.
“Professor Sun, am I eating too?” Shen Qi was not abnormal.
“Count you cruel, I’m leaving.” Sun Erxiong wiped his mouth, stood up and left.
“Hey, Professor Sun, don’t go…” Shen Qi watched the two hundred catties of fat old grandson drift away. They divided three catties of dumplings, Shen Qi ate one catty, and Sun Erxiong ate two catties.
All afternoon, Shen Qi drew pictures on scratch paper.
In fact, Shen Qi also felt some of his problems in mathematics. In the past eight months, he has read a large number of mathematics literature, journals, and papers. The accumulation of mathematical knowledge is enough, and he has a certain comprehensive application ability, but There is still a gap between the realm of wide open and close, freely retractable. This led him to fall into a misunderstanding on certain mathematical problems, and love to dig into the corners.
“Forget it, don’t draw anymore, I have a headache.” Shen Qi stopped drawing and rubbed his temples. He drew 101 patterns in the afternoon, and they could be sold in a book if they were bound.
Crunch, the door of the small house opened, and Sun Erxiong carried a big bag of buns into the house.
“It’s almost six o’clock, Shen Qi, let’s have steamed buns for dinner.” Sun Erxiong put the steamed buns on the table.
Shen Qi pushed a stack of 101 sheets of white paper with graphics to Sun Erxiong, looking very tired: “Professor Sun, I drew 101 answers, you can see which one is what you want.”
Sun Erxiong left the bun with his left hand, and quickly flipped the white paper with his right hand. He turned to the twelfth sheet, pulled out and said lightly and said: “Just this one, congratulations Shen Qi, the answer is correct.”
“Professor Sun, don’t you need to check the back?” Shen Qi asked.
“No need.” Sun Erxiong put the 12th blank paper on the table.
The pattern on the white paper is a regular hexagon with a circle cut inside, and three lines are made inside the regular hexagon, just passing through the center of the circle.
“This… is Brianchon’s theorem done?” Shen Qi couldn’t believe it, it was so simple?
(Note [2] Brianchon’s theorem: the connection of three pairs of vertices in a simple six-line shape circumscribed to a non-degenerate second-level curve is at the same point, this point is called Brianchon point)
“Yes, what I want is the supplementary drawing of Brian Xiong’s order.” Sun Erxiong nodded and ate a pork bun with green onion.
“Ah…” Shen Qi looked up at the ceiling and let out a desolate sigh. I worked hard to draw pictures for an afternoon and think about it all day. All you want is a Brian Xiong point?
“Look at Shen Qi, the left picture on the blackboard is based on Pascal’s theorem.” Sun Erxiong walked to the blackboard, knocked on the left picture, and said: “You only use the projective geometry expression of Brianchon’s theorem. Enough. In fact, the logic is not difficult. Pascal’s theorem and Brianchon’s theorem are dual.”
“For example, Shen Qi, you open your palm and see the palm, then turn over your palm so that the back of your hand is facing up, and you have completed the answer. It is so easy. However, in order to complete this easy step, you first do a set of warm-up exercises. , Running another five kilometers, tired yourself down. In fact, a lot of exercise in front of the palm is futile. It does not mean that it is useless and unnecessary.”
“Fuck…” Shen Qi spread out his palms, palms facing upwards, and then flipped his palms, with the backs of hands facing upwards, one more time, one, two, three, four.
“So Shen Qi, are you aware of your problem?” Sun Erxiong asked.
“I’m afraid I’m going crazy.” Shen Qi’s expression was solemn, and his cultivation in the field of mathematics may have reached the tribulation period, stepping further into the fairy world, taking a step back and thundering every day.
“Have you read martial arts novels, Shen Qi.” Sun Erxiong suddenly talked about a seemingly irrelevant topic.
“Of course, Jin Guliang is very familiar with it.”
“Then I ask you, is Zhang Wuji’s internal strength strong?”
“Master Zhang has the Nine-Yang Magical Power to protect the body, which is very strong.”
“What are the specific tricks that Zhang Wuji often uses?”
“He… he doesn’t seem to have any specific tricks, right? The Universe moves the opponent twice and kills the opponent in seconds. This is a stream of consciousness operation.”
“So Shen Qi, what have you learned from Zhang Wuji?”
“Could it be that… the highest level of martial arts is to win without a stroke, and if you can’t kill within three strokes, you count me as a loser?” Shen Qi trembled inexplicably.
Sun Erxiong smiled and said: “Basic mathematics is the same, the simpler, the more complex, the more complex, the simpler. Can you experience it?”
After staring at the dog for a minute, Shen Qifan woke up: “I understand, I understand! Thank you, Professor Sun, I have learned a new skill! I know how to write my problem-solving skills guide! Master! , Professor Sun, you must be a super master, like Zhang Sanfeng!”
“I’m not a master, I’m just an ordinary teacher.” Sun Erxiong waved his hand and said, “There are still nine months before you come to Yanda University to officially report. The directional advice I give you for these nine months is that you don’t need to be here. Add reading content to mathematics, just review the mathematical theories you have taught yourself. After this mathematics camp is over, Shen Qi, when you return home, you should diversify the breadth of knowledge and expand the coverage of knowledge. Basic physics and basic computer theories are Good supplement.”
“Even entry-level architecture, painting principles, and musical foundations. You can try to get in touch with it when you have time. Believe me, it will help you step into a deeper realm in mathematics. We at Yanda never train nerds, we He is the creator of an academic master. He can only do questions without thinking. Even if you get a diploma from Yan University, you are nothing more than a senior worker.”
Shen Qi was sensational: “Understood, listening to Professor Sun’s words is better than ten years of reading.”
“In September next year, I hope to see a better Shen Qi.” Sun Erxiong smiled, took out a bun from the bag and handed it to Shen Qi: “I’m done talking about it, let’s eat the bun, Shen Qi.”
Shen Qi took the steamed buns, they were very delicious.
At this time, the wall clock on the wall ticked, and Shen Qi turned his head to take a look, alas, it’s six o’clock!
“Professor Sun, you will definitely see a better Shen Qi in September next year, but now, I have to go.” Shen Qi grabbed two buns and stuffed them into his pockets, as if to leave in a hurry.
“Where are you in such a hurry? Do I need to see you off?” Sun Erxiong took out his car key.
“Capital Sports University Stadium, I have a good brother who is about to compete.”
“Shen Qi, take the subway by yourself. Drive to the Capital University of Physical Education at this point. The road will be blocked for at least two hours.”
“I’m leaving, see you tomorrow!” Shen Qi ran away.
In a hurry, Shen Qi arrived at the stadium of Capital University of Physical Education at 6:30 The U19 Track and Field Games of the country was held here.
“Fortunately to catch up, which one is Xu Rui?”
On the spectator stand, Shen Qi looked around. At the 100-meter starting line on the plastic track, eight young runners lined up.
The muscular guy on the fourth track, wearing a blue sportswear with the words “Southern Guangdong Province” on the back, is Xu Rui.
boom!
At this time the starting gun was fired and the men’s 100-meter race finals of the National U19 Track and Field Games began.
Xu Rui’s start was terrible. He was obviously slower than the other competitors in the start, and fell to the last place as soon as he started.
During the acceleration run and on the way, Xu Rui rushed desperately, and he chased more than a few people to the third position.
“Come on Xu Rui, let’s explode two more!” Shen Qi watched the battle with nervousness. He knew that only the 100-meter champion was meaningful to Xu Rui, and second and third equated to failure.
However, the two players who rushed to the front were very strong on the way. Even if Xu Rui pressed the gun to start, he did not necessarily have an absolute chance of winning the championship, not to mention his poor starting and starting comparison.
The red-shirted player in lane 5 crossed the line first, and Shen Qi covered his face and did not dare to continue watching.
In the end, the results were displayed on the big screen. The athletes from the capital team won the men’s 100 meters championship in 10.79 seconds. Xu Rui ranked third in 10.90 seconds.
Shen Qi had to see if he didn’t look, he saw Xu Rui, who had finished the game, sitting on the ground, his expression dull and lost to the extreme.
“Hey, it’s really not easy to win a national championship.” Shen Qi hurried to the scene of the competition, he failed to witness Xu Rui’s victory, all he saw was failure. According to Xu Rui’s statement, Shuimu University only accepts national championships in each individual event, so Xu Rui’s admission to Shuimu University through his sports expertise is a bit hanged.