In the following period, Shen Qifen wrote a book and completed the compilation of more than 100,000 words, including functions, vectors, derivatives, sequences, solid geometry, plane analytic geometry, probability and statistics and other core knowledge of high school mathematics.

Shen Qi did not include threshold-level knowledge such as sets and common logical terms, this thing is too simple, even for ordinary high school students. With this kind of conceptual common sense, Shen Qi has no way to give any problem-solving skills.

After compiling the first edition of the "High School Mathematics Cheats", Shen Qi is equivalent to combing the basic mathematics system in his mind, a good brain is better than a bad pen, turning the ideas in his head into words is also a method of self-learning, and induction and summary is an important ability.

High school mathematics includes many branches, such as functions, vectors, derivatives, sequences, solid geometry, plane analytic geometry, probability and statistics, and other basic branches continue to extend and expand, and are upgraded to more professional knowledge theories such as calculus, series, number theory, matrix theory, and spatial analytic geometry.

Learning is a step-by-step process, in fact, all the courses in high school together contain a lot of basic knowledge, some college students graduate and join the work and find that the most effective in the market society is still middle school knowledge, but unfortunately the middle school knowledge is almost forgotten, and the university professional knowledge is not right, no wonder the leader scolds me every day, waste, garbage, college in vain? Find a high school student to work is more efficient than you, deduct bonuses!

Let knowledge be popular, and science be popular. Shen Qi didn't realize that he was engaged in a significant job, and his original intention of compiling this "high school math cheats" was just to fulfill his promise to his classmates.

It took half a month, more than 100,000 words of induction, printed out on A4 paper and bound into a book, a big stone in Shen Qi's heart fell to the ground, he conceived this secret book from September, and the draft was completed in early December.

After Shen Qi wrote this cheat, the experience value of the mathematical index increased by more than 20 points, and the experience value of the language index increased by more than 500 points.

When I reached level 6 in math, it was slow to gain experience through the daily accumulation mode.

Chinese level 2, through high-intensity daily writing practice, Shen Qi inadvertently increased the experience value of Chinese, and his writing level improved. It is not a matter of ornate rhetoric and flying writing, but it is the most basic writing requirement to be smooth and fluent in writing so that readers can understand it.

Chen Xiaoting and Gu Xiaodan played an important role in the process of writing the "High School Math Cheats", and they reported to Shen Qi in a timely manner every day.

The feedback of the typical target readership is of reference value to an author, solving the pain points of readers and satisfying the unmet needs of readers, and Shen Qi does his best without overturning the main line setting.

According to Chen Xiaoting and Gu Xiaodan's immediate feedback, Shen Qi made appropriate revisions to the first draft, all in all, he felt that what should be done had been done, and instructed Chen Xiaoting and Gu Xiaodan: "The little secret between the three of us must be kept secret, don't tell other students for the time being, especially Teacher Zhang, don't study this secret book under his nose, you two work hard, and then study the secret book I wrote when you go home at night." ”

In the next six months, Shen Qi plans to expand the breadth and coverage of his knowledge according to Professor Yan Dasun's directional suggestions, and appropriately promote other disciplines, so that he can cultivate some hobbies, cultivate sentiments, and meet a better self.

In the blink of an eye, in the monthly exam in December, Shen Qi still took the exam, he scored 719 points, and he was the first in the whole grade.

Chen Xiaoting scored 535 points in the exam this time, and Gu Xiaodan scored 527 points, and their total scores and grade rankings have improved compared with the last time.

"This time I scored 111 points in math, which is a full 10 points. Chen Xiaoting was very pleased.

"I scored 124 points in the math test, which improved by 12 points, but unfortunately I failed in the English test, damn!" Gu Xiaodan was happy and annoyed, he said to Chen Xiaoting: "Chen Xiaoting, you suppressed me in the total score of these two mock exams, I am very unhappy." ”

"Accept all this, Gu Xiaodan, this is your fate. Chen Xiaoting said in a strange tone, covering her mouth and snickering as she spoke.

"Damn, Chen Xiaoting, you were damaged by Shen Qi. No, this shouldn't be my fate!" Gu Xiaodan raised his head and howled, and looked around when he was done: "What about Big Brother Shen Qi?

"It has to be. Chen Xiaoting looked at the empty desk beside her, and she didn't know where Shen Qi had gone.

Shen Qi hadn't shown up for several days, and no one knew what he had been busy with lately, except for taking the monthly exam in December.

Shen Qi forgot about mathematics for the time being, and he concentrated on overcoming sound, wave equations, beats, wave membranes, harmonics...... and so on.

However, without thinking about it, the wave equation and chord vibration in physics are closely intersected with mathematics.

Similar to ordinary differential equations, mathematicians created partial differential equations primarily to provide support for physics.

The study of the displacement of the vibrating string as a function of time and as a function of distance from one endpoint to a point on the string cannot be explained in depth by pure physical language, so partial differential equations were tinkered with by Euler and D'Alembert, and the language of mathematics made everything simple. In Euler's and d'Alembert's time, most mathematicians were also excellent physicists.

With partial differential equations, the sounds of horns, organs, bells, drums, and other musical instruments of various shapes can be explained mathematically.

Shen Qi is studying this piece of content.

After compiling the "High School Math Cheats", Shen Qi doesn't go to school much, let's talk about physics class, physics teacher Zhao Hongtao talks about college entrance examination physics questions and various mock questions every day, which is also too boring.

"Mr. Zhao, I have a few doubts about the propagation of sound in one-dimensional space, and the one-dimensional wave equation derived after considering the fluctuations of small amplitudes, and I would like to ask Mr. Zhao to give me advice. A few days ago, Shen Qi took the initiative to ask Mr. Zhao for physics knowledge.

"Shen Qi, let me tell you, the college entrance examination will not test the wave equation, this is the knowledge point of college physics. Zhao Hongtao persuaded bitterly, "Shen Qi, have you finished the physics chapter of the Five Three Golden Classics? ”

Shen Qi: "Last time, I made a mistake in chemistry and biology and deducted 10 for a multiple-choice question, and the physics part was all right. ”

Zhao Hongtao's face did not change, reflecting the calm demeanor of an old teacher: "Shen Qi, let me tell you, this life is very long, what do you do at any stage, since you have finished brushing the five or three golden classics, you might as well brush him seven or eight times, the college entrance examination is actually summed up in one sentence: without him, only familiar with your hands." ”

From that day on, Shen Qi no longer asked Mr. Zhao for physics questions.

Teachers are unwilling to teach students, so how can students learn by themselves.

Shen Qi adjusted the self-study plan, just take one or two hours a day to review mathematics, the focus of learning gradually shifted to physics, Chinese, English, biology, chemistry are also appropriately taken into account, this winter is relatively cold, outdoor running is no longer suitable, Shen Qi goes to the gym two or three times a week, equipment exercise, to maintain good health.

After the system was adjusted to 1.1.0, Shen Qi could accumulate experience points in various subjects through daily practice.

After the end of the year, in January, Shen Qi's indicators for each subject are:

Mathematics Level 6 (42/150,000)

Physics Level 3 (612/5000)

Language Level 2 (562/3000)

English Level 2 (312/3000)

Chemistry 2 (289/3000)

Creature Level 2 (201/3000)

Physical Education Level 2 (199/3000)

History Level 1 (0/1000)

Geography Level 1 (0/1000)

Politics Level 1 (0/1000)

Balance of student points: 42113 points

There was also a monthly exam in January, and Shen Qi continued to take the monthly exam, with a total score of 716 points, a decrease of 3 points from the monthly exam in December, and still ranked first in the total score of the whole grade.

In this monthly exam, Shen Qi got full marks in mathematics and science, and he also did well in the Chinese test, with 141 points. But the English performance was too abnormal, so I scored 125 points.

Chen Xiaoting and Gu Xiaodan's total score ranking continued to improve, Chen Xiaoting scored 551 points, Gu Xiaodan was suppressed by Chen Xiaoting for three consecutive months, and he scored 549 points.

The comprehensive level of the two is actually about the same, Chen Xiaoting's Chinese and English are better, Gu Xiaodan's science and science are stronger, and mathematics is basically a draw.

Chen Xiaoting and Gu Xiaodan's rankings jumped up, attracting the attention of the head teacher Zhang Wanbang.

Compared with Chen Xiaoting and Gu Xiaodan's results in November, December, and January, Zhang Wanbang found that the main increase of the two came from one subject--- mathematics.

Chen Xiaoting: 520 in November, 101 in Mathematics, 535 in December, 111 in Mathematics, 551 in January, 125 in Mathematics.

Gu Xiaodan: 518 in November, 112 in Mathematics, 527 in December, 124 in Mathematics, 549 in January, 129 in Mathematics.

"Chen Xiaoting, Gu Xiaodan, the two of you come to my office. Zhang Wanbang dropped a sentence and left the classroom of the third (2nd) class of high school.

Chen Xiaoting and Gu Xiaodan came to Zhang Wanbang's office tremblingly.

"Say, why have you two improved your math scores significantly in the past few months?" Zhang Wanbang got straight to the point with a serious expression.

"Teacher Zhang, we have worked hard to study mathematics, and the emperor has lived up to his wishes. Gu Xiaodan replied.

"Hmm. Chen Xiaoting nodded.

"Tell the truth!" Zhang Wanbang scolded.

"Teacher Zhang, you teach well!" Gu Xiaodan was startled and instinctively raised his hands.

"Really?" Zhang Wanbang snorted, finding Gu Xiaodan and Chen Xiaoting's math test papers.

"In this mock exam in January, the two of you have the same idea of solving the last question, I have never taught you such a way to solve the problem, but this method is reasonable and does not exceed the outline. In the last big question, there are only three people in our class 2 who got a perfect score of 15, you two, and Shen Qi. Zhang Wanbang looked at Gu Xiaodan and Chen Xiaoting with cold eyes.

"No, no, no, Mr. Zhang, you misunderstood, we didn't copy Shen Qi's test papers!" Gu Xiaodan shouted wronged.

Chen Xiaoting was a little nervous, she took a kind of insurance measure, did not say a word, and remained silent.

Syllable!

Zhang Wanbang slammed the table: "I hate students lying to me the most!"

Gu Xiaodan confessed: "Actually, we have been worshipping Shen Qi as a teacher, and it has been two or three months, and he has written a ......"

"Gu Xiaodan!" Chen Xiaoting, who only said the word "um" after entering the office, was angry, and she stared at Gu Xiaodan, very disappointed and angry.

"Chen Xiaoting, you go back to the classroom first. Zhang Wanbang waved his hand and let Chen Xiaoting go first.

Chen Xiaoting walked to the door of the office, glanced back at Gu Xiaodan, her lips squirmed, and the meaning of her lips was "traitor." ”

Gu Xiaodan has been recruited, all of them have been recruited, Teacher Zhang, Shen Qi is also kind-hearted, you must not beat him and scold him, what punishment will come at me.

Zhang Wanbang did not continue to blame, he said: "Gu Xiaodan, what kind of math cheats did you say, take it and show it to me." ”