Chapter 8

Shuangyun: "How did you do it?"
Cheng Lang: "Come up and I'll tell you. 1008."
Shuangyun: "I live above you."
Cheng Lang: "Come down then."
Shuangyun carefully read Cheng Lang's message, her brain spinning rapidly. What did he mean? Just directly asking her to come to his place?
But her body had already made the choice. Shuangyun quickly rushed to the bathroom to shower.
After her hair was dry, Shuangyun changed into a tank top and long pants. She wasn't wearing makeup, looking very casual. She grabbed her laptop and keys and went out, only to realize she couldn't go to Cheng Lang's floor. She could only take the elevator to the first floor, then ring the doorbell.
After all that trouble, Shuangyun finally arrived at Cheng Lang's door.
She knocked lightly, and it quickly opened.
The two stood facing each other, very close. Shuangyun noticed even more how tall he was. He was still wearing last night's clothes, probably hadn't slept like her.
Cheng Lang didn't say much, just stepped aside to let Shuangyun in.
"I can't explain it clearly in messages. I made several different models that can be applied to different scenarios."
As Cheng Lang spoke, he led Shuangyun toward the desk in the living room.
Shuangyun glanced around his apartment. A standard one-bedroom layout, floor-to-ceiling windows, carpet throughout. The open kitchen faced the dining and living area. But Cheng Lang's living room had no sofa—only two large desks, three huge screens, and a chair that looked very comfortable. The whole place seemed restrained and very clean. No unnecessary decorative items.
Nerd.
Shuangyun thought of this word again.
She secretly smiled and followed him to sit next to Cheng Lang.
He connected Shuangyun's laptop to the screen too. Shuangyun naturally took the mouse and began explaining her settings to him.
Cheng Lang sat to one side, listening seriously.
Her thinking was very clear, and she'd also discovered the numerical algorithm settings he'd changed last night. According to the diffusion formula, she'd also coupled all the needed parameters into the model.
Shuangyun opened the model results. Cheng Lang was about to speak when Shuangyun said first, "I know I haven't done calibration yet or tested the running results under different scenarios, but I just want to tell you, I'm not as stupid as you think."
"I don't think you're stupid." Cheng Lang said.
"You said what I made has no real-world significance."
"Yes."
"Isn't that saying I'm stupid?"
"Many smart people also do meaningless things," Cheng Lang said. "Sometimes things that look pretty on the surface are more attractive, even if they have no real-world significance."
Shuangyun looked at him. He hadn't slept all night, but his face showed no fatigue. His eyes were still very alert, very focused when listening to her talk about the model.
The house seemed very quiet. Even though they'd been talking, Shuangyun felt it was quite quiet here.
"Then do you think I'm pretty?" A question out of nowhere. Shuangyun looked at him with interest.
The apartment didn't have curtains drawn. Outside, the sky was slowly brightening. A cool-toned orange-blue light passed through the glass and fell on Shuangyun's face and body.
Thus decorating her face with hard-to-see colors.
Cheng Lang said, "You're very pretty."
Shuangyun smiled.
She had no makeup on her face. When she smiled, she revealed white teeth.
Cheng Lang moved his gaze back to the computer screen. "This is the model I made. You can reference it too."
Shuangyun carefully looked at his model and found he'd built it extremely systematically. The thinking and logic could be understood at a glance. He'd set up many equation calls in the model, convenient and efficient, but requiring strong programming and mathematical ability.
Shuangyun was impressed while asking if he could send it to her to look at later.
Cheng Lang: "Of course."
"Thank you." Shuangyun said.
Cheng Lang stood up. "It's fine. I didn't help you that much anyway."
Shuangyun: "What do you mean?"
Cheng Lang stood in a backlit area. Shuangyun couldn't see his face very clearly.
But his voice was clear: "You'd already coupled the simplified pollutant diffusion module, hadn't you?"
Shuangyun didn't answer.
"I came back in the evening and carefully looked at your thesis, then found your group's webpage. It briefly introduced the model you made and mentioned you'd coupled pollutant diffusion. I think you'd probably already made a simplified diffusion module."
Cheng Lang's tone didn't have much fluctuation. Shuangyun couldn't tell his emotions.
She simply laid her cards on the table: "Since you already knew I was deliberately asking you, why did you stay up all night helping me make this complex model?"
Cheng Lang walked to the kitchen and took out the kettle to fill it with water.
"Because last night when you closed your laptop and left without wanting to hear me say another word, it was because you could do the simplified version, but you really didn't know how to do what came next."
He pressed the boil button and said, "I have a student who's like this too."