Haze weather

Song Boyang, who returned home, finally saw the "long-lost" smartphone.

The days of being dependent on the old man's mobile phone can be regarded as an end. After successfully transferring the phone card to the smartphone temporarily, Song Boyang forcibly shut down the old man's mobile phone, and threw it at the bottom of his school bag to sleep.

Winter vacation is wonderful.

Zhou Chiyu's grades are good, he participated in the math competition class, and more importantly, he seems to have a good relationship with himself. Every time he thinks about this, Song Boyang feels a little more confident when he harassed Zhou Chiyu online.

Most of the time it is to share video links, often find something to talk about, and occasionally ask for answers to math competition questions.

One day Song Boyang discussed the topic with Zhou Chiyu on QQ as usual.

Chi Yushan: What don't you understand?

Another advantage of chatting with the other party is that Song Boyang collected a stack of emojis about puppies from Zhou Chiyu, added them to his favorites, and threw one over when he needed them.

Poplar: Puppy Tears.jpg

Poplar: /images/

Poplar: Algebra proof that question

Poplar: Stuck

Poplar: The answer is not very clear

Chi Yushan: I'm in the library and can't make a voice

Chi and Shan: I will tell you when I get home at noon

Originally, Song Boyang couldn't figure out the answer by himself, so he was impatient, and even had the urge to tear up the page of teaching assistants. When he saw the news of Zhou Chiyu, he probably had already mastered it proficiently, and his anxiety slowed down for a while. Slowly calmed down.

Poplar: I knew you could write

Poplar: Are you omegas so smart?

Poplar: Thank you for your kindness

At noon, Song Boyang finished his meal as fast as he could, slipped back to his room with a few big strides, closed the door, opened the chat box, and started squatting on the other party's voice messages.

Song Boyang's mother's puzzled voice came from behind, "Why does this child eat so fast today!"

The phone on the desk vibrated suddenly.

[Chi and Shan initiated a voice call] [Rejected] [Answered]

Song Boyang didn't expect Zhou Chiyu to call directly, and pressed the green answer button in a hurry.

【Voice chatting】

Chi Yushan: "Can you hear me?"

Poplar: "Yes."

Chi Yushan: "I don't think it's convenient to send a voice, so I made a voice call directly. The step circled on the picture you sent me, the answer omits a lot of logical reasoning, which is really a bit difficult to understand."

Song Boyang began to laugh, that smile seemed to be a good boy even if he was cheap.

Poplar: "Why are you still making money for me? You are so sweet. Actually, I won't be angry if you say I'm stupid."

Chi and Shan: "..."

Chi Yushan: "You prepare a piece of draft paper, you may use it halfway."

Song Boyang transferred the mobile phone from his right hand to his left hand, picked up the draft paper with his left hand and put it in front of his eyes, and raised the black pen that was lying on the table with his right fingertips.

Poplar: "Okay."

Chi Yushan: "The sum of k/k^2+1 can be approximated to the sum of 1/k, where k=1 to n, there is a conclusion that the sum of 1/k minus lnn tends to be a constant, and you regard lnn as It is the result of integrating 1/n, draw a graph of y=1/x."

Song Boyang immediately took a pen and drew a concave curve on the draft paper.

Poplar: "It's done."

Chi Yushan: "You draw two straight lines x=1 and x=n, and the area enclosed by the curve is the result of integrating 1/n, that is, lnn, which divides the distance between 1 and n into n can be approximated as many small rectangles with a width of 1, then their area values ​​are exactly equal to their heights."

After drawing the lines according to Zhou Chiyu's instructions, Song Boyang's right hand refused to be idle. The black pen nimbly drew a circle between the index finger and middle finger, then fell between the middle finger and ring finger, and then jumped into between the ring finger and little finger. Finally, go back the same way.

He couldn't help turning his pen when he was thinking.

Chi Yushan: "Because you can choose to use the y value on the left to be high, or you can choose to take the y value on the right to be high, so two inequalities can be obtained by summing the heights, which are the inequalities that will be used in the later proof..."

Poplar: "Fuck, I get it!"

Chi Yushan: "Is there anything else you don't understand?"

Poplar: "I don't know. I'll do it first. If there's anything I don't understand later, I'll ask you again."

Chi Yushan: "Do you have any other questions to ask? You can take this opportunity to talk together."

At this moment, Song Boyang was immersed in the joy of finally figuring out the steps to solve the problem. Although he completed it with Zhou Chiyu's assistance, it didn't prevent him from feeling a little flustered, and he blurted out without even thinking about it——

Poplar: "Yes."

Poplar: "You have a really nice voice."

The other side suddenly stopped talking.

After the eerie silence, there was a beeping beep.

The voice call was hung up by Zhou Chiyu.

what's going on?

It can't be... I'm sorry, right?

Many times before, Song Boyang praised each other, but Song Boyang always carried it with a sense of ridicule, or going back, the two of them were not familiar with each other at that time, Song Boyang hadn't changed his mind, he opened his mouth and forgot.

The situation just now is an exception for Song Boyang, because he really thinks boys who are good at math are very attractive.

The person who praised others was a bit uncomfortable for a while, and always felt that he should send a few messages to the other party right now. When Song Boyang opened the dialog box to type, his knuckles became inexplicably inflexible. The tone is all clear.

At the same time, "the other party is typing..." is also displayed at the top of the dialog box.

But after a long time, the last message of the dialog is still "Call duration 03:49".

.

Soon it will be New Year's Eve.

The lights of Wanjia lighted up leisurely, the moonlight dotted the undulating roof, and the fireworks outside the window exploded in the night in an instant, turning into colored meteors with folded wings and falling downwards.

The reunion dinner in the house is full of aroma.

Song Boyang's father was still sitting at the dining table, eating side dishes and drinking wine. Song Boyang's mother had already turned on the TV first, tuned to CCTV as the background sound, and began to participate in the activity of grabbing red envelopes in the WeChat family group.

Lying on the sofa, Song Boyang didn't want to watch TV, so he used his mobile phone to send Zhou Chiyu an emoji with a screenshot of the red envelope.

He had been teased by Mr. Jiang with similar emoticons before, and he went in with great interest, but what was displayed was not the amount of the red envelope, but the details of the picture.

I don't know if the other party was fooled.

Zhou Chiyu almost replied in seconds——

Chi and Shan: High imitation QQ red envelopes, right?

Pond and Mountain: See Through at a Glance

Chi Yushan: I have never been fooled since high school

Pool and Mountain: The other party threw a fruit fly's eyes at you.jpg

Pool and Mountain: The Puppy Points to You.jpg

Poplar: Then I will send you a new one

Song Boyang never tired of it, continued his prank, and sent another high-definition pink picture of Grandpa Mao to the other party.

Pool and Mountain: ...

Pond and Mountain: Numb.jpg

Chi and Shan: You can shut up.jpg

Song Boyang laughed on the sofa, and then replied——

Poplar: This time I will send you a real red envelope

Poplar: /qq red envelope/

Song Boyang didn't lie, it's just that he sent a password red envelope - "Dad".

Pool and Mountain: The Puppy Points to You.jpg

Poplar: Let me change the word then

Song Boyang typed two words on the password red envelope setting interface with a sly smile, and then clicked to pay.

Poplar: /qq red envelope/

The other side was silent for a full minute.

Just when Song Boyang was about to poke him, Zhou Chiyu finally sent two messages in succession——

Chi and Shan: Dad

Chi and Shan: Brother

【Chi and Shan received your red envelope】

【Chi and Shan received your red envelope】

【Chi Yushan withdrew a message】

【Chi Yushan withdrew a message】

Poplar: Hahahahahahahaha

Poplar: What's the use of withdrawing, I've seen it all.jpg

Poplar: I have taken a screenshot as a souvenir

Pool and Mountain: The Puppy Points to You.jpg

Although Song Boyang's red envelope with the password was a bit messed up, the amount was real and not mixed with water.

Chi Yushan: For the sake of your expenses, I will also send you a red envelope

Pool and Mountain: /qqhongbao/

It was a voice red envelope, so Song Boyang looked at the text and read it——

"Happy New Year, Xiao Zhou."

This time Zhou Chiyu returned a voice message, and he said, "Happy New Year to you, and everything goes well."

The author says:

There may be another eight chapters or so of plot to write together.I understand that some readers are dissatisfied with the procrastination of the plot. Maybe you can choose to save up and read it or skip it. They are all paid chapters. I still hope that everyone can spend money to buy a good reading experience (bow