They're already in university, and the primary school system is only just starting out?

Sun Yu snapped out of his daze and quickly picked up the few sheets of draft paper. "Master, I'll organize them right away."

He took a deep breath, forcibly suppressing the shock in his heart, opened his laptop, created a new Word document, and began to type in the content that Chen Lin had written on the paper and the explanation he had just given, word by word.

The process of organizing was slower than Chen Lin had imagined.

After all, Sun Yu had only listened to it once, and he didn't remember some of the details and logical connections between the steps very clearly.

"Master, could you explain the calculation of the curvature of that microsegment, specifically the three-point method you just mentioned, in more detail?" Sun Yu asked, turning around somewhat embarrassed as he typed on the keyboard.

"Sure." Chen Lin was wearing headphones while looking at a PowerPoint presentation. Upon hearing this, he took one off and explained succinctly, "It means taking three consecutive discrete points P_{i-1}, P_i, and P_{i+1}. These three points can determine a unique circle. The curvature of this circle can be approximated as the instantaneous curvature of the middle point P_i."

Seeing that Sun Yu still looked confused, he simply took a blank sheet of paper, quickly drew a diagram, and wrote down the calculation formula.

"You see, curvature is the reciprocal of radius, and the radius R of this circle can be calculated using the coordinates of these three points and the formula for the circumcircle radius of a triangle. Specifically..."

Chen Lin patiently explained it to him again.

After about half an hour, with Chen Lin's help in checking and filling in the gaps, Sun Yu finally finished a well-organized PDF document with illustrations and clear logic. He checked it twice to make sure it was correct before solemnly sending it to General Manager Peng via encrypted email.

When the email was successfully sent, a notification popped up. Sun Yu let out a long sigh of relief and slumped into his chair, his face filled with a sense of relief.

"Thank you so much, expert!"

Chen Lin glanced at the time in the lower right corner of the computer screen. The consultation had taken less than two and a half hours from start to finish.

Sun Yu spent more than an hour researching the solution himself, and another half hour organizing the documents. In fact, the total time he actually spent explaining it was less than an hour, which was even faster than the first time.

"I'll be going now if there's nothing else." Chen Lin closed his laptop, preparing to pack his things and leave. "Also, don't call me 'God,' just call me Chen Lin."

"Hey... Chen Lin, wait a minute!" Sun Yu quickly called out to him, "There's something else."

He sat up straight in his chair, his expression becoming somewhat serious: "President Peng specifically instructed that the company plans to rent an apartment for you outside the school."

Seeing Chen Lin raise an eyebrow, Sun Yu quickly added, "As for me, what President Peng means is, if you don't mind, we can rent a two-bedroom apartment together. Besides consulting with me, I can also run errands for you. Of course, if you want to live alone, I'll find another place in the same neighborhood or apartment building, and the company will reimburse the rent."

After listening, Chen Lin couldn't help but sigh inwardly, realizing that this General Manager Peng had really gone to great lengths to secure a long-term relationship with him.

However, the suggestion of renting a house outside the school did indeed tempt him.

He considered it carefully.

First of all, I have made up my mind that I will definitely switch to the mathematics department next semester.

According to the school's regulations, after changing majors, dormitories will be reassigned, and he will most likely be placed in a male dormitory with an empty bed in the School of Mathematical Sciences.

He and his three lively roommates in room 406 have been living together for almost two years, and they know each other's personalities and routines very well.

Chen Lin would be happy to continue living with them.

But if you were to have several completely unfamiliar new roommates, the variables would be too great.

Instead of gambling on that little bit of luck, it's much better to rent a place to live and enjoy peace and quiet.

Secondly, and more importantly, his consulting business will definitely increase in the future. Whether it's for Mr. Peng's design institute or potential clients on Xianyu (a Chinese online marketplace), he will inevitably need to handle these matters at night.

We can't keep doing what we did last time, running to a small hotel near the school in the middle of the night to book a room, can we?

With this in mind, Chen Lin had already made up his mind.

But this means saying goodbye to my three goofy roommates.

He sighed, a sudden pang of reluctance welling up inside him.

Well, all good things must come to an end.

I had promised to treat them to a barbecue on the fourth floor of the cafeteria before summer vacation, so I'll tell them about it then.

"I think I'll live alone," Chen Lin said to Sun Yu. "It doesn't need to be too big, a one-bedroom apartment or a studio is fine. Can you help me find a small place or apartment? I don't have high requirements for living conditions, just basic furniture and appliances, and internet access."

"Okay, Chen, no problem, I'll take care of it!" Sun Yu immediately agreed, quickly packed his things, stood up, and said, "I'll be going now. I'll contact you again when I find a suitable place!"

After Sun Yu left, the study room returned to silence.

Chen Lin glanced at the time; it wasn't even five o'clock yet, and there was still a while before dinner. He composed himself and prepared to continue reviewing the PPT and notes at hand.

Just as he picked up his pen, he suddenly remembered something.

Chen Lin took out his phone, opened WeChat, and sent a message to Shen Yan and Yun Qing respectively.

The message was very simple, just one sentence: "I went to the hospital for a checkup today, and the doctor said there's nothing wrong with my health."

Almost at the same time the message was sent, a red dot appeared on Yun Qing's profile picture.

Yun Qing: [That's great, I can finally relax (≧◡≦)♪]

A few seconds later, new messages popped up one after another.

Yun Qing: [Junior, junior, are you free tonight?]

Yunqing: [Our band is having our first rehearsal in the new rehearsal room, please come and be our audience! (｡>ㅅ<｡)]

Yunqing: [I told them all that you're an amazing singer, so you'd better show off your skills! ヾ(･ω･*)ﾉ]

Looking at this series of messages, Chen Lin smiled and immediately used the excuse he had thought of that morning.

Chen Lin: [Sorry, senior, I'm starting to focus entirely on preparing for final exams this week, so time is a bit tight.]

Chen Lin: [When I come back from summer vacation and have time, I'll definitely go and support your band!]

Yun Qing: [What a pity (╥﹏╥)]

Yun Qing: [Then good luck to you, junior! Wishing you all 90+ on your finals! p(^-^q)]

After dealing with Yun Qing, Chen Lin was just about to log out of WeChat when he saw Shen Yan's reply.

It still maintains her signature minimalist style.

Shen Yan: [Okay]

Chen Lin looked at these three words and was about to lock his phone.

The screen lit up again; it was a second message from Shen Yan.

Shen Yan: [If you experience any further discomfort, you can tell me, and I'll go to the hospital with you for a checkup.]

Upon seeing this message, Chen Lin's fingers, holding the phone, paused.

He could picture the earnest and concerned expression on Shen Yan's face as she typed those words.

A strange warmth welled up inside me.

Chen Lin: [OK][OK]

Putting away his phone, Chen Lin leaned back in his chair, a slight smile unconsciously creeping onto his lips.

I have to admit, it feels pretty good to be cared for like this.

However, the focus right now should be on improving myself and making money.

He shook his head, banishing those random thoughts from his mind, and refocused his attention on the PowerPoint presentation and class notes in front of him.