Chapter 877 Get It Done in an Hour

Although Lu Zhou doesn't know much about economics, in a place like Princeton, any subject that has a little relationship with mathematics will more or less have something to do with people who study mathematics.

Especially things like economics.

Either a new social production relationship will be born or the scope of human civilization will be further expanded. Otherwise, it will be difficult to create novel theories through traditional theoretical research methods.

Therefore, mathematics can be said to be the only way out for modern economists if they want to make outstanding research results. Although this situation has been criticized by traditional economists as an act of showing off a numbers game, it has indeed helped the industry solve the problems of countless doctoral graduates and employment.

In fact, after so many years of barbaric growth in the field of theory, mathematics is a bottomless mine for any computing science. Whether we can dig out valuable things from it depends on how scholars in other fields use it. And improve those mathematical tools tempered from countless problems, and integrate them into their own subject areas.

Therefore, although Lu Zhou is not particularly interested in economics, whenever he appears in the coffee shop on the first floor of the Institute for Advanced Study in Princeton at three o'clock in the afternoon, occasionally a professor engaged in economics will chat with him and talk to him. Talk to him about some not-so-difficult math problems.

After staying in Princeton for so many years, Lu Zhou has dealt with economics experts, and he can't count them with two hands.

Not to mention those bigwigs who have won the Nobel Prize, even the editors of the top journals of "Nature" and "Science" have a close relationship with him.

But anyone with a normal IQ would not take the risk of offending such a big boss to get a master's degree certificate and degree certificate...

As for why Lu Zhou must have this corresponding author...

It's not that he cares about the corresponding author of a mere paper, it's just that he doesn't want Xiaotong's supervisor to take advantage of him.

Although he was still a little worried, but seeing that the almighty brother had said so, Xiao Tong stopped insisting. After asking about his parents and how he was doing recently, he went to the starving Lu Zhou. Under the urging of her, she reluctantly hung up the phone.

After closing the laptop, Lu Zhou stretched himself, took out his mobile phone and ordered a takeaway, then opened Xiaotong's unfinished thesis, and read it line by line.

"Let me see...it seems interesting?"

Although he doesn't know much about the Bewley model, the part involving mathematics is no different from the mathematics homework of elementary school students to him.

After all, no matter how complex the model is, it is impossible to be more complex and chaotic than the system of plasma turbulence. Even the NS equation and the model of plasma turbulence, two world-class problems, can be solved. A mere Bewley model is not even qualified to give him shoes.

For the understanding of functional analysis, if he thinks he is second, then no one can be called the first.

However, it is also helpful for his research to occasionally think about some simple questions.

Anyway, the takeaway hasn't been delivered yet, and being idle is idle, so it's time to relax.

Holding the ballpoint pen in his right hand and placing his left hand on the keyboard, he quickly went through the information in the attachment. The tip of the pen held by Lu Zhou's fingertips was like a flying wheel, rolling a series of smooth and neat marks from the paper.

"Although it is a bit simple, it is indeed a very interesting math problem... Who talked to me when I was in Princeton? I can't remember clearly."

"...Why use the Lagrange multiplier method to solve each step in the optimization process?" When the calculation reached a certain block, the tip of Lu Zhou's book paused for a few seconds.

However, it was only a few seconds.

"You can use the endogenous grid method..." muttering to himself, Lu Zhou crossed out the previous line of steps and re-wrote a line of calculation.

"The endogenous grid method is also a bit troublesome. Directly optimizing the original mathematical model can save at least 20% of the cumbersome calculations... maybe 25%."

This kind of problem is really not even a problem.

The gushing inspiration broke down the city wall that stood in front of the finish line in an instant.

After writing down the last line of calculation, Lu Zhou leaned back on the office chair, lowered the screen of the notebook slightly, and let the front camera point at his few draft papers.

"Xiao Ai, help me tidy up."

"By the way, refer to the Bewley model and compile a new algorithm for my new model."

Xiao Ai: [Received~ Leave it to Xiao Ai! (▽)】

Almost as fast as Lu Zhou's page-turning speed, Xiao Ai, who completed the calculation step scanning in the shortest time, quickly sorted out the entire mathematical model, and marked out possible problems or clerical errors, and presented In front of Lu Zhou.

Lu Zhou simply glanced at it, and after confirming that there was no problem with the marked area, he nodded towards the computer.

Soon the data was uploaded to the quantum computer located underground at the Jinling Institute for Advanced Study. Almost a few seconds after the data transmission was completed, the feedback data was transmitted from the quantum computer.

Xiao Ai: [The algorithm is compiled! ()】

Xiao Ai: [Through 12777 sets of random parameters, the numerical calculation results of the improved mathematical model are basically consistent with the original model, the dispersion is reduced by 13%, and the calculation efficiency is increased by 21%. (^^*)】

He is not very clear about what the dispersion of calculation results means, but the 21% increase in computing efficiency is basically in line with his expected results.

It is said that using a quantum computer to check a master's thesis, will it feel like hitting a fly with a cannon?

Forget it, never mind.

Who wants him to have only one sister?

What's more, the electricity bill in Suzhou Province is not worth much now...

Thinking of this, Lu Zhou looked at the computer and continued to order.

"Help me edit an email, and send the algorithm and mathematical model together."

Xiaoai: [Good master! ()】

Seeing the emoticons behind the bubbles, Lu Zhou suddenly remembered something, and then said, "By the way, don't put your emoticons and emoticons in the email, just send the email normally."

Xiaoai:【Σ(っ°Д°;)っ】

Lu Zhou: "...?"

Although he didn't quite understand what Xiao Ai's emoji meant, Lu Zhou didn't want to ruin his image as a tall, handsome, smart and reliable brother in his sister's mind because of a few emoticons or off-line emoticons.

It took about five minutes for the email to go out.

He received a reply from Xiaotong in his mailbox.

Although the content of the email is very short, even as short as only three characters...

[? ? ? 】

Seeing these three question marks, a smug smile appeared on the corner of Lu Zhou's mouth.

Come to think of it, Xiaotong didn't expect that he solved such a "difficult" problem in only one hour.

"Speaking of which, it's been an hour. Why hasn't the takeaway I ordered arrived yet?"

Rubbing his stomach, Lu Zhou took out his mobile phone and was about to call the delivery man, but found that his takeaway had been signed for twenty minutes ago.

Fuck?

Who picked up my takeaway?

He was so involved in solving the problem just now that he didn't even notice the reminder from the phone.

Just when Lu Zhou was in a daze, there were three knocks on the door of the office, and then Wang Peng came in with a packing box.

"Your braised chicken and rice," Wang Peng said with a sigh as he put the plastic bag in the box on the table, "Can we discuss it? I'll buy what you want. Can we not order it in the future?" Takeaway, it's just making our job harder."

"It's easy to finish when you're hungry." Reaching out his hand to take out the packing box from the plastic bag, Lu Zhou smiled embarrassedly and said, "...Speaking of which, why did you send it here?"

Wang Peng: "It's safer if I send it off."

Lu Zhou: "This means that my security level has increased again?"

Wang Peng hesitated, then nodded.

"Um."

There's nothing to hide about this kind of thing.

Just like when the controllable fusion research entered a critical stage, the local military region directly transferred a company to be responsible for the security of his residence. It was not until the Pangu fusion reactor was connected to the power grid that it was adjusted to normal levels.

Although it is not as exaggerated as it was when the research on controllable fusion was done, and the international situation is not as severe as it was then, carbon-based chips are related to the future of the domestic semiconductor industry after all, so it is right to be careful.

Hearing this "hmm", Lu Zhou stopped breaking the chopsticks and looked at Wang Peng silently.

Just when Wang Peng was a little puzzled by this look, Lu Zhou coughed lightly and said.

"...you didn't do that kind of...taste something like that?"

Although I can't talk about cleanliness or something, or maybe I do have a bit of cleanliness...

It doesn't matter unless it's eating at the dinner table, other than that, he can't eat the food that others have touched, either psychologically or physically.

"How is it possible?!" Choked by Lu Zhou's words, Wang Peng coughed twice before recovering, "What age is this, and there is no such thing as a poison test. But you don't have to worry about hygiene. Dr. Yan has done a simple test, and there must be no problem in terms of hygiene."

Lu Zhou: "..."

MMP!

It turned out that I took my takeaway and went for a test. I said why the delivery was so slow!

It made him almost throw a bad review backhand.

But when he heard Wang Peng's explanation, Lu Zhou became even more entangled.

Before sending it over, it passed Dr. Yan's hand...

This guy has a criminal record...

Lu Zhou still remembered that this guy drank his own Coke secretly a year ago.

No, it should be said that Ming Qiang drank it in the past.

Thinking of this, looking at the takeaway Lu Zhou, he couldn't help but fell into deep thought.

To eat or not to eat?

really tangled...