Time passed quietly.
In the following days, Xiao Yi stayed at the Entrepreneurship Center and conducted research.
As for such things as taking classes, naturally they don't exist.
Of course, the college won't say anything. To a certain extent, they wish Xiao Yi never came to class.
Xiao Yi not coming to class means that he is studying something more important.
Maybe if he really researches it, the posters in their school can be replaced again?
Just like that, a month passed.
At 11 o'clock in the evening, Xiao Yi raised his head and stood up from his seat. He circled three times to the left and three times to the right, twisting his neck and twisting his butt.
After moving his body for a while, he looked at the time.
Well, another day has passed.
But...
He smiled.
Spread several pieces of scratch paper on the table one by one.
The theoretical model of Absolute Electronic Computation has been basically completed.
What's left is to use machine learning to feed a variety of experimental data to this model, so that it can then optimize the prediction of electron trajectories under different circumstances.
As for where these experimental data came from, there is no need to worry. Luo Mingya had promised him that he would provide him with a large amount of experimental data, so today he has also contacted Luo Mingya and obtained quite a lot of data from her.
Of course, in addition to these data, he can also find a large amount of data on the Internet to feed this model.
But before that, he first had to write the model onto the computer.
"Let's start writing tomorrow. Let's go back tonight."
Thinking of this, he tidied up the room and left.
Soon, after returning to the dormitory, he opened the door and said, "Children, your emperor is back."
However, what caught him off guard was that as soon as he closed the door and turned around, he found that he was surrounded by three people Ye Cheng.
He leaned back and said warily, "What do you three want to do? Are you rebelling?"
Ye Chen stepped on his chair with one foot, then held the clothes drying rod in one hand and put it on his shoulder. With the other hand, he pointed at Xiao Yi and said, "Go up! Get this bastard for me!"
Song Ziyang and Luo Qiao immediately rushed forward and held Xiao Yi on the left and right.
"Rebellion, really rebellion!"
Xiao Yi stared at these three guys with wide eyes, "Who gave you the courage!"
"Hmph! Quiet!" Ye Cheng picked up his metal pencil case, used it as a gavel, and slapped it directly on the table, saying, "Bold Xiao Yi, as a member of the 313 dormitory, dare to do things that violate the dormitory harmony law and hurt the feelings of the roommates in broad daylight. Do you think you are guilty?!"
"How can you accuse someone of innocence out of thin air?" Xiao Yi protested with his eyes widened.
"Hmph! Still being stubborn!" Ye Cheng waved the clothes drying rod in his hand and said, "Come here, give me evidence!"
Luo Qiao next to him immediately took out his mobile phone and handed it to Ye Cheng.
Then Ye Cheng clicked on it a few times and showed it to Xiao Yi.
"Look! Is the person up here yours?"
Xiao Yi took one look and was stunned.
I saw a photo on the screen, and in the photo, he and Luo Mingya were eating and chatting.
Isn't this the photo he took this afternoon when he asked Luo Mingya for experimental data?
Gan!
When did these guys take secret photos?
"Humph, I have nothing to say." Ye Cheng patted the pencil case again and said, "According to Article 1 of the dormitory law, the person who leaves the bachelor first must call the other roommates daddy!"
"Bold Xiao Yi, are you dissatisfied?"
Xiao Yi rolled his eyes, and then said to Luo Qiao and Song Ziyang next to him, "Help me take down this kid Ye Cheng. I'll treat you to dinner later."
Ye Cheng suddenly opened his eyes. "How dare you! How dare you bribe him in public? It's so unreasonable! Song Ziyang! Luo Qiao! Why don't you punish him quickly!"
However, Song Ziyang and Luo Qiao did not listen to him. Instead, their eyes lit up and they asked Xiao Yi: "Seriously?"
"Seriously." Xiao Yi clicked his chin. "And you can choose from restaurants near the school."
Luo Qiao and Song Ziyang immediately let go of Xiao Yi, turned around and walked towards Ye Cheng: "I'm sorry, Cheng'er, he gave too much."
"You! You can't be lewd with wealth, and you can't be subdued by power! Even if you have money, you can't do whatever you want!"
Ye Cheng pointed at them in horror, only to be taken down with a backhand in two or three strokes.
Xiao Yi twisted his arms, clenched his fists, and then walked up to Ye Cheng with a grin. "I'm sorry, sir, you can do whatever you want if you have money."
Then he suddenly grabbed Ye Cheng's waist and scratched it hard.
Ye Cheng immediately started struggling, "Ahhahaha no, ahhaha..."
It wasn't until the kid's expression completely collapsed after being tickled that Xiao Yi let go of him, shook his hand, and snorted, "You dare to fight with me, kid? From today on, the first rule of the dormitory law is that whoever treats guests to dinner is the boss."
After some fun, it took Ye Cheng a long time to recover, but he still asked, "But, Brother Xiao, we still want to know who the girl next to you is."
"You're not really single, are you? We're studying mathematics. Do you understand that wise men don't fall in love?"
Xiao Yi rolled his eyes and said, "Go, go, don't talk nonsense. That's a doctoral student from the Institute of Materials Science. I collaborate with her on a laboratory project. We just wanted to talk about the project during the meal. You guys secretly filmed it here and didn't tell me. You were hiding it, right?"
After hearing Xiao Yi's explanation, the three of them immediately breathed a sigh of relief.
Ye Cheng patted his chest. "Hey! If I had told you earlier, I was really scared to death. It turns out it was just a project collaboration. I almost thought you were really single."
Song Ziyang also let out a sigh of relief, "Let's just say, how can we, Mathematics Department, find a girlfriend? There is not even a girl in our class B. Those people in the dormitory next door are calling each other baby, baby, baby, all day long, which makes me homophobic."
Luo Qiao nodded repeatedly. "Indeed, Brother Xiao, you don't know. When I was secretly taking pictures today, I saw that girl, Wo Ri. Although she didn't dress up much, her bare face was unmatched by any of the few girls in our college. What I was thinking at that time was that you really deserve to die."
Xiao Yi: "..."
How come the reactions of these three people are more demanding than the other?
At this moment, his cell phone suddenly rang.
I was stunned, who would call me at such a late hour?
As soon as he took out his phone and looked at it, he realized what was going on.
The person who called him is Zhang Yitang. Today, he seems to be conducting Landau-Siegel-Zero Conjecture report at Princeton University.
It is now past eleven o'clock in the evening, Chinese time. If you put it over Princeton University, it is eleven o'clock in the morning. That means that Zhang Yitang is reporting at this time.
He shook his head helplessly, it seemed that he still hadn't escaped.
After signaling to his three roommates, he answered the phone.
At the same time, far away in a lecture hall at Princeton University.
Zhang Yitang was holding a mobile phone in his hand and said to the scholars below, "It should be 11 o'clock in the evening in China now. We can only hope that Xiao Yi hasn't gone to bed yet."
The audience below all smiled and looked forward to it.
Just now, Professor Manjul Balgava from Princeton University raised a very critical question regarding Circle Method Expansion mentioned in the papers of Zhang Yitang and Xiao Yi.
As for this question, Zhang Yitang didn't know how to answer it. Just when everyone was worried about how he should deal with this problem, he performed a hand shake on the spot.
He actually called Xiao Yi directly and asked him to help.
Although they were caught off guard, they had to deny that this seemed to be a very effective measure.
What did not disappoint them was that the call was answered quickly.
Xiao Yi's voice came from inside. "Professor Zhang, let me guess, have you encountered a problem?"
"Sorry to bother you." Zhang Yitang said helplessly, "You are right, I am in the lecture hall of Princeton University now. Professor Manjul Balgava asked a very critical question about Circle Method Expansion. Now I can't answer it."
Xiao Yi said, "Okay, let's make a video."
"Then I'll trouble you."
No nonsense, they quickly started the video, and Xiao Yi's avatar also appeared on the multimedia screen at the back.
Xiao Yi Looking at the scene through the camera, there must be hundreds of people.
Then he said, "Professor Manjul Balgava, please explain your question again."
"Okay."
In the first row, Manjul Balgava stood up and said with a smile, "In Circle Method Expansion, how do you deal with the high-order terms in the polynomial expansion? These high-order terms will cause serious error accumulation in traditional Fourier analysis, thus affecting the accuracy of the results."
"For example, from your and Professor Zhang's paper, on page 46, there is a formula of the form f(x)=∞∑_(n=∞)Cne^(inx). In this formula, when n is large, how do you control the error accumulation of the higher-order term Cne^(inx)?"
Hearing this question, Xiao Yi raised his eyebrows. This is indeed a very critical question. No wonder Zhang Yitang couldn't answer it.
The problem of high-order items exists in the traditional Fourier expansion, and his Xiao's Polynomial Expansion is a technology born out of Fourier expansion, so it was also brought into Circle Method Expansion.
Professor Manjul Balgava is the Fields Medal winner in 2014. He has conducted very in-depth research on Analytic Number Theory. It is no wonder that he was able to find this problem.
But...
Xiao Yi just smiled lightly.
"This is a good question. Of course, to solve it, we only need to use the adaptive weighting function in the sieve method to filter these high-order terms layer by layer."
"The specific operation... Well, I'll ask Professor Zhang to write it down for me."
"Of course, no problem." Zhang Yitang walked to the blackboard, "Just tell me."
"Okay." Xiao Yi said, "We first perform a transformation on the polynomial expansion to map f(x) to a new function g(x), where n(x) is a special basis function that can significantly weaken the influence of higher-order terms."
[g(x)=∞∑n=∞dnn(x)]
"Then we introduced the adaptive weighting function w(n), which has the form: w(n)=1/(1+|n|^k), where k is an appropriately chosen positive number to control the weight of higher-order terms."
"Next, we only need to further combine the sieving method with weighting technology. Through this transformation, we can control the error of higher-order terms within an acceptable range while ensuring the retention of the main number theory information."
"That's it."
Xiao Yi said, while Zhang Yitang also wrote these steps on the blackboard.
Manjul Balgava looked at these steps and thought about Xiao Yi's explanation just now. After pondering for a long time, he finally nodded and clapped his hands and said, "It's a good solution. I don't have any problems anymore."