Except for the clothing store, Liu Yichen just breathed a sigh of relief.

Damn it!

Beat yourself up and don't come here again next time. Isn't this a scam? Look at the way those women look at him. The glowing, interested and curious look makes Liu Yichen want to find a hole to crawl into. It's so embarrassing.

.

Some women even winked at him from time to time, energizing her with their eyes. Yaoshou, he was not interested in these women at all.

After shopping and buying clothes, it was already 9:30 in the evening. Liu Yichen sighed secretly, "This girl is simply a born expert at shopping and buying clothes."

The two of them walked back to school, chatting while walking.

Feng Lin laughed happily from time to time and was obviously in a good mood, while Liu Yichen was also in a good mood except for being embarrassed in the women's clothing store.

The two were chatting and laughing, talking about this and that for a while. The spring breeze was blowing gently, and they were intoxicated. It really made people intoxicated. The spring breeze is not intoxicating, people are intoxicated by themselves.

The lights on the road are dim and there are very few vehicles. Most of the people walking here are students. Although the school prohibits love, high school students are all over 16 years old. They themselves are vaguely curious about love. In addition, today's youth idol dramas

The popularity naturally stimulates the yearning for love, and one can always fall in love involuntarily.

Therefore, high school campus love is actually not a rare thing. It is relatively rare in No. 1 Middle School, but it is quite common in No. 2 Middle School. This made Lao Liu worried about his daughter falling in love at school, and he no longer allowed Liu Tingting to live on campus.

Instead, I went back to live at home, and time was very tight.

"Liu Yichen, are we in a relationship now? Am I your girlfriend now?" Feng Lin suddenly asked, "Am I your girlfriend now?"

Liu Yichen was startled.

What does this mean? Why don't two people just be friends? Why don't they mention which pot to boil?

How do you answer this?

I am now so focused on studying that I don’t have time to think about falling in love. I am now moving towards the goal of becoming a top student, and I want to become a top student. There is also a broken system that is watching me from time to time to prevent me from slacking off at all.

.

I want to say that I don’t want to fall in love.

However, it is true that he is a straight man, but he does not understand anything. His soul is the soul of an uncle in his 30s. He knows that if he talks directly to Feng Lin, he will be heartbroken. There will be a gap between the two from now on, and I am afraid it will be difficult to get back together

Become friends.

To be honest, for Feng Lin, Liu Yichen has pretty good senses and a good personality. Although his family is rich, he does not have the high-profile and showoff of the rich second generation, and he is also very serious in his studies.

The point is, Feng Lin is very beautiful. Although she still has some baby fat on her face, she still looks beautiful. If she puts on makeup and shows her dimples in her smile, it shouldn't be a problem to compete for the school beauty.

"Um... Feng Lin, we are still high school students and we can't fall in love." Liu Yichen hesitated for a moment and organized his words: "The adults in my family strictly asked me not to fall in love in high school. If I want to fall in love, I have to wait until college.

fall in love."

"Our mission is to study hard and try to get into a good university!" Liu Yichen said: "Now you are my only friend in school. If you still like me in university, we can try to fall in love again."

While saying that, Liu Yichen played a prank and said jokingly: "I think you are my best friend, but you want to pick me up and give me a child."

Feng Lin was worried, shy, and sad just now. Now when she heard Liu Yichen's joke, Feng Lin suddenly exploded with anger: "Liu Yichen, go to hell~~"

He said he was going to beat Liu Yichen, but Liu Yichen held his clothes and shoes in both hands and ran away, with one person chasing after the other.

Inside the campus, after the fight ended, the two of them walked side by side. The lights were dim, and there were very few people. There was only the sound of crickets. Neither of them spoke at this time, enjoying this moment of tranquility.

Suddenly, Feng Lin hugged Liu Yichen, who was so frightened that Liu Yichen's hands shook and he almost put down the things in his hands and dropped them to the ground.

Why did this little girl become so bold all of a sudden? This was at school, and it would be bad if she was seen.

‘Ding dong~’ Feng Lin touched her toes and kissed her.

Soft and tender, Liu Yichen's whole body felt like an electric shock. It was so beautiful that words cannot describe it.

After a long time, their lips parted, and both of them breathed a little quickly. Feng Lin avoided his eyes, lowered her head, and her face turned slightly red...

Liu Yichen was stunned.

My first kiss...was just gone!?

Damn it, this little girl is so courageous, she always makes sneak attacks and kisses him. It was like this last year, and it's like this again.

This confirms that I... won't reject anyone!

Liu Yichen was a little frustrated, he really wouldn't refuse...and by the way, the kiss was quite wonderful, it was really intoxicating.

"From now on, you are mine... If you want to find a girlfriend, you can only find me. If you dare to find anyone else, I will bite you~~" Feng Lin's slightly red face looked thin and frail.

Body, speaking incomparably domineering words.

Good guy, I originally thought she was the innocent girl next door, but I didn't expect she turned out to be a domineering queen.

He actually made a mistake, Feng Lin actually had the potential to be a queen.

After entering the dormitory, the two separated. Most of the students in the dormitory had gone home for the May Day holiday, leaving only a few students who had not yet taken the holiday.

Returning to the dormitory, Liu Yichen put away his clothes and shoes. He was still a little dizzy. He didn't expect that girls today would be so bold. He, a grown man, was actually being chased by a woman.

He was really shocked!

"But... it seems pretty good!" Liu Yichen murmured, and the appearance of Feng Lin could not help but appear in his mind. That face was full of girlish beauty.

Well, Liu Yichen admitted that he seems to like being a weirdo.

...

On the other side, Feng Lin returned to the dormitory with her clothes and shoes, and immediately locked the dormitory door. Her whole body seemed to have lost all strength. She felt that her face must be very good, as if it was burning, and her

Her heart was beating fast, she could hear her own heartbeat, and it seemed as if her heart was about to jump out.

Liu Yichen's figure was in her mind, holding her cheeks with both hands. The more she thought about it, the more shy she became, and the more she thought about it, the more embarrassed she became.

"Oh~~ Feng Lin, how could you be like this?"

"How can you, a girl, be so proactive?"

"Will Liu Yichen be disgusted with me and stop being my friend?"

"He said that I am his only friend~~Does that mean that I am his girlfriend by default?"

"..."

That night, Feng Lin was sleepless, like a little girl who fell in love, turning over and over, unable to sleep. Various fantasies appeared in her mind, including fantasies about the two of them watching movies together, fantasies about the two of them entering college together, fantasies about

Wearing... Wearing a beautiful wedding dress, I walked into the marriage hall sweetly and happily.

The German poet Goethe once said: What man is not in love, and what girl is not pregnant with love!

This statement is indeed true!

...

On the other side, Liu Yichen took a cold shower to calm down his body and prevent his blood from boiling.

After calming down, Liu Yichen read a book in the dormitory. He was the only one in the dormitory now, and all three roommates had gone back.

One advantage of the May Day holiday is that the lights in the dormitory will not be turned off. And the dormitory building seems much quieter.

He has now learned about sequence, which mainly solves the general formulas of the sequence, including substitution method, characteristic root method, fixed point method and iteration method, mathematical induction method and recursion method.

Although its importance is not as important as functions, plane geometry, and solid geometry, it is also a relatively important knowledge point in high school, and it involves a lot of mathematical thinking, such as the substitution method, which is a high school topic.

Very common and commonly used mathematical thinking, using simple methods to solve complex mathematical problems.

The substitution method does not only exist for a quadratic equation of one variable. In fact, it can convert high-order to low-order, convert fractions into integers, convert irrational expressions into rational expressions, and convert transcendental expressions into algebraic expressions. When studying equations and inequalities,

It is widely used in functions, sequences, triangles and other problems.

The methods of substitution include local substitution, triangular substitution, mean substitution, etc. The types of substitution include equal parameter substitution and non-equivalent substitution.

Liu Yichen has now been vaguely exposed to it. By learning knowledge points, he can understand its thinking on a deeper level, instead of just staying on the methods and tools.

It vaguely understands why mathematics is so great and why mathematics is so important!

Why do those great mathematicians leave their names in history and let the world remember them forever?

He studied mathematical knowledge, which is the wisdom left by those mathematicians. It is better to say that learning mathematical knowledge is learning mathematical wisdom, learning the wisdom of these mathematicians, and communicating with those mathematicians through theorems and formulas.

Have a conversation across time and space.

Although he is very small, he is growing rapidly. Sooner or later, he will grow into a big tree, and the mathematical wisdom left by his predecessors is the nutrient and water for his growth.

What kind of big tree it can grow into depends on how much water and nutrients it can absorb.

"Sure enough, Newton is right. Only by standing on the shoulders of giants can you stand tall and see far!" Liu Yichen muttered to himself.

Everyone's impression of Newton is that he was a great physicist. The only person who could rival him was Einstein. Looking at the entire history of mankind, Newton was like a giant of physics, standing tall in the history of physics.

Looking down at the world and those who come after.

In fact, this impression is somewhat biased, because Newton's achievements in mathematics are equally amazing. For example, he is the founder of calculus, or one of the founders. He proved the generalized binomial theorem and proposed the 'Newton's method'.

'To approach the zero point of the function and made outstanding contributions to the study of power-level functions.
Chapter completed!