Chapter 370: Professor Li's daily worries

December 16th.

There was unmelted snow on the branches, the sun had already come out, and there was a hint of warmth when it fell on people. At 8 AM, Xu Qingzhou and Song Yao finished breakfast and went to the School of Economics together.

In the past few days, Xu Qingzhou had already perfected the ARIMA, and today he was going to hand in the task.

"It's a pity, after today, it seems there's no reasonable reason to go to your office."

Xu Qingzhou tucked his hands, sighed while walking.

Song Yao glanced at this guy and chuckled twice: "Is that wanting to study? I don't even want to expose you."

This guy just likes to move his hands and feet in the office.

"This is a little fun between couples." Xu Qingzhou said lazily.

Song Yao muttered in a low voice: "Clearly a pervert."

Xu Qingzhou shrugged, already immune to the word "pervert" in Song Yao's mouth. This girl despised him as a pervert every day, but wasn't she secretly cooperating?

Someone still courted death and replied: "Giving me your feet every day, don't know who is the pervert."

Without accident, he was punched in the waist.

The two turned at the intersection and had arrived at the School of Economics.

"Junior Sister Song, Xu Xu Shidi Xu, morning."

Downstairs, "gossipologist" Han Shiyi was gnawing on a bun, waving to greet the two.

"Morning~"

Xu Qingzhou and Song Yao responded.

Seeing Xu Qingzhou holding his waist, Han Shiyi was surprised: "Xu Xu Shidi... what's wrong with you?"

Song Yao also turned her head and stared at him, the threat in her eyes self-evident.

"Nothing, a bit itchy." Xu Qingzhou shook his head.

Office, 9 AM, the research group members were already sitting in the meeting room. Li Daiyue and Ke Chen were explaining the progress of their respective sections at the meeting.

"We have completed the verification of the periodic characteristics of the time series through tools such as spectral analysis and autocorrelation functions."

After Professor Ke Chen finished speaking, he looked at Xu Qingzhou and asked: "Qingzhou, how is the situation on your side?"

Han Shiyi and others looked over curiously.

Li Daiyue's gaze also fell on Xu Qingzhou, curious about the completion of Xu Qingzhou's model.

This kid promised Professor Ke that the error would be around 1.5%.

Very difficult.

If the error was high, after all, he was Little Yao's boyfriend, so he should be encouraged.

However...

She glanced at Song Yao beside her. Her disciple didn't have any intention of worrying, which also meant that Xu Qingzhou's model shouldn't be too bad.

Xu Qingzhou nodded, smiled faintly, and said: "Lived up to expectations. I just finished the model yesterday. The completion is okay, and the error is within the standard range given by Professor Ke."

Han Shiyi nodded slightly. Worthy of being a junior brother, indeed no problem. Others also showed smiles on their faces.

"How much?" Ke Chen asked with a smile.

Xu Qingzhou said in a deep voice: "If there are no accidents, the error should be around 0.02%."

"Hmm..." Professor Ke Chen nodded, but soon found something wrong. He paused, looked at Xu Qingzhou, and his voice couldn't help but raise a few decibels: "You said the error is how much?"

"Around 0.02%."

Xu Qingzhou spread his hands and said helplessly: "Still a bit high. I originally intended to lower it, but time was limited, so I could only make do with it. Currently, it can also meet your calculation needs."

"Xu Xu Shidi, are you sure it's 0.02%, not 0.2%?"

After a brief silence in the meeting room, Han Shiyi swallowed, wanting to confirm again.

The error of the model made by that top team in the US was all around 1.5%. "Yeah." Xu Qingzhou nodded affirmatively.

"..."

0.02%.

And "make do with it"?

Ke Chen's mouth twitched.

In front, Li Daiyue also looked at Xu Qingzhou deeply. She suspected this kid was doing it on purpose.

Must admit, Xu Qingzhou was a genius.

To a certain extent, the impact Xu Qingzhou brought to Li Daiyue this time was greater than the previous times he solved some conjectures, because that was a field she was unfamiliar with.

Being able to lower the error to 0.02% alone was completely comparable to a top team.

Little Yao...

Li Daiyue's focus was now on Song Yao beside her, and worry surged in her heart again.

If the boy is too strong, the balance between the two is very easy to lose.

The one who suffers in the end must be her disciple.

【In one look...】

On one side, Song Yao propped her chin, sighing in her heart: "This guy is too bad. He could have said it directly, but he had to sell a suspense."

Xu Qingzhou handed in the model, and after solving two calculations with the others on the 18th, the work at the School of Economics was completely concluded, and he put his time completely into the research of local smoothness.

Library.

Xu Qingzhou looked at the manuscript full of formulas, thinking about how to verify the inequality he encountered: "Therefore, reaching here, the key to proving this inequality is to establish a discrete bilinear square function estimation."

"Within a sufficiently small spatial scale, use the extension operator to approximate the oscillatory integral operator. Assume o>0 and 1≤k≤λ, perform Taylor expansion near point z, and then perform variable substitution."

After a brief stutter, the train of thought opened up again. After using the third method, the calculation was very smooth.

On the afternoon of the 21st, Xu Qingzhou found a tool that could transform or crop puzzles at will; the "bilinear equivalent form" had already formed a complete figure.

Song Yao was even busier than Xu Qingzhou these few days. Besides following Li Daiyue to do project content, there was also a very important task—preparing her graduation thesis.

According to the previous plan, she needed to complete the undergraduate credits one year in advance and graduate in June next year.

On the 23rd, at 5 PM, Xu Qingzhou took a taxi to the Wanhe Hotel next to Xiangshan.

"Xu Xu Shidi." Gong Yunfei waved, "The professor and the others just went in, hehe, just waiting for you."

"Where are you planning to go to play next?"

Xu Qingzhou asked with a smile.

"Not running north this time, planning to go to Sanya."

"Very good."

Two and a half years, the people originally in the research group were all there. This Senior Brother Gong was already a first-year PhD student, and Hong Yayu and Wang Wei had both graduated with PhDs. It was just unknown whether they would stay in the research group after this project ended.

Xu Qingzhou and Gong Yunfei went in all the way, still the same private room as last time.

"Okay, everyone is here." Zhao Shengwen signaled Xu Qingzhou and Gong Yunfei to sit down, let the waiter serve the dishes, and at the same time, said with a smile:

"Okay, according to the usual practice, I'll just say a few words. From February last year to now, it's been almost two years. I have to thank everyone for their hard work and unremitting efforts over these two years..."

"Of course, there is also the most important thing, the project bonus, which will be transferred to everyone's account tomorrow."

"Thank you, Professor!"

"Professor is mighty!"

Wang Wei and Gong Yunfei applauded on the side. Hong Yayu was still that cold appearance, but judging from the relaxed eyebrows, the mood was also good.

Xu Qingzhou also smiled and followed the applause. Zhao Shengwen was very generous.

He agreed very much with this point of Professor Zhao. As a mentor and the person in charge of the research group, of course, he couldn't just rely on ideals and beliefs to encourage his team members.

(End of chapter) ===== CHAPTER 371 =====