Xueba: The knowledge I taught will be returned by crit

“What do you mean?”

After hearing Gu Bai’s words, Xue Jiabao and Li Mengfan were also stunned.

Both are required.

Big brother, are you kidding?

This is not looking for a wife, looking for a girlfriend, the more the better, this is a modeling topic!

There is also the follow-up of thesis writing, which is difficult to complete without dozens of hours.

What’s more, it’s this hellish level of mathematical modeling, which is definitely more difficult.

In fact… Gu Bai actually didn’t mean it all.

Do both topics, but… The ~ he was preparing for the competition was the first A topic.

He is not good at computers, and he is not good at MATLAB mathematical modeling tools, but he just thinks that the computer master Xue Jia-Bao is just there.

Of course, the research on Category B topics is based on Gu Bai’s personal private letters, or personal problems, and has nothing to do with the two seniors.

After a deep groan, Gu Bai said: “Let’s make a class A topic first, as for the latter category B is a problem that I personally want to study.” ”

Looking at Senior Xue Jiabao, Gu Bai said seriously: “If I have time, I want Senior Jiabao to help me build a mathematical model.” ”

“Oh, and do you have a connection with that battery that you used to run to the lab a lot lately?”

Looking at the class B graphene superconducting battery, Xue Jiabao asked.

“I feel that there is, and I feel that there is not…” replied Gu Bai.

“Okay… Regardless of whether it is useful or not, I will write down this topic first. If we still have time after finishing the A questions, I will help you, and I will help you if we don’t have time to go back to school. ”

“Thanks.”

With a snap of his fingers, Gu Bai turned his head to Senior Li Mengfan and said, “The reference and the theme framework of the paper can be searched and written by hand.”

“Leave it to me.”

After speaking, Gu Bai looked at the mathematical modeling topic of this [Great Summer Eye].

The content of the question stem is nothing more than some pictures and materials of the eye of heaven.

The big summer eye (FAST), to put it bluntly, is a radio telescope, which is composed of an active reflective surface, a signal receiving system (feed module) and related control, measurement and support systems, of which the active reflective surface system is an adjustable spherical surface composed of main components such as the main cable network, the reflective panel, the pull-down cable, the actuator and the supporting structure….

After reading all the information in ten lines at a glance, Gu Bai looked at the question after the question:

[1. When the object to be observed is located directly above the base sphere, that is, 0.90, the ideal parabola is determined by considering the adjustment factors of the reflection panel. 】

[2. When the object to be observed is located at 36.795.78.169, the ideal parabola is determined. 】

[3. Based on the reflective surface adjustment scheme of the second question, calculate the reception ratio of the feed cabin after adjustment, that is, the ratio of the reflected signal received by the effective area of the feed cabin to the reflected signal of the reflective surface within 300 meters of aperture, and compare it with the reception ratio of the reference reflective sphere. 】

After reading all the information and the corresponding questions, Gu Bai raised his eyebrows, and his brain ran quickly.

Mathematical modeling, which examines a problem in the student’s use of mathematical ability, is a problem mixed with the eye of the sky and astronomy, which is indeed quite a headache at first glance.

But… After all, the topic is a topic, and he is different from the data obtained and summarized by the scientific research’s own experiments.

When the author of the question came up with the question, he himself edited the topic according to the existing data.

Tap-da-da…..

With his thumb tapping a few times on the table, Gu Bai already had a modeling idea in his heart.

“There are 2226 main cable nodes in the active reflective surface, 6525 main cables are connected between nodes, and there are 4300 reflective panels regardless of the part of the reflection panel connected by the surrounding support structure.”

“Annex 1 gives the coordinates and numbers of all lead nodes, Annex 2 gives the coordinates of the lower endpoint (ground anchor point) of the actuator, the coordinates of the upper endpoint (top) in the reference state, and the number of the main cable node corresponding to the actuator…”

“So, question one: when the object to be observed is located at 36.795.78.169, considering that both the electromagnetic wave signal and the reflected signal are regarded as linear propagation, its ideal parabola…

“Question 2: In order to ensure the establishment of the reflection panel adjustment model, adjust the expansion and contraction of the relevant actuators, and make the reflective surface as close as possible to the ideal parabola, when the object to be observed is located at 36.795.78.169, the function algorithm in the MATLAB software should be used to achieve the ideal parabolic surface in various situations… Finally…”

Soon.

This is a heavenly eye topic with several attached pages and a dozen pictures, and the logical outline has almost been sorted out by Gu Bai.

“Groove… Is it Xiaobai’s real mathematical modeling strength? ”

Li Mengfan’s eyes widened, and his face was full of shock.

Although he and Gu Bai have been working together for several months for the National College Students Mathematical Modeling Competition, he also knows that Gu Bai has strong mathematical ability.

But… He had at least one degree at that time.

However….

At this time, Gu Bai gave him the feeling that he no longer had this degree, which was a kind that was ridiculously strong.

It is so strong that ordinary people simply cannot imagine it.

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You know, this mathematical modeling topic of the eye of heaven… It is a real new topic.

Shocked, Li Mengfan was shocked at this moment.

Xue Jiabao pushed his glasses up with his middle finger, also with an incredulous face.

Without talking about the attachments given by the topic, fade out the principle of reading to understand the operation of the heavenly eye, without an hour or two, it is difficult to understand.

But what about Gu Bai?

In less than 10 minutes, the analysis has been completed, and there is an outline idea for solving the problem.

“It turns out that …. In the past few months, Xiaobai has never exposed his strength. ”

“Or in other words, when we were refining, Gu Bai felt that the topic was too simple… He was too lazy to solve the problem hard. ”

Xue Jiabao looked away from Gu Bai with difficulty, looked at Li Mengfan and laughed at himself.

Mu Ne’s nod, Li Mengfan could only think of this possibility.

“So, we hugged Xiaobai’s thigh this time.” Then, Li Mengfan whispered.

“Haven’t we always felt that way?” Xue Jiabao said with a smile.

“It’s different, this time the feeling is particularly strong!!”

Li Mengfan paused, and then continued: “Actually, according to Xiaobai’s strength, as well as his identity as a proof of the NS equation and Zhou’s conjecture, this modeling competition means little to him. ”

“You mean, he’s here for both of us.”

“That’s right, so this thigh was delivered to both of us.”

Touching his nose a little embarrassed, Li Mengfan swore and said, “So…. I decided. ”

“Decide what?”

“In the future, our Gu Bai Xueshen of Linhai University will be my idol and my eternal little white brother, and I will only look at the little white brother.”

“Huh~~”

Wordlessly rolling his eyes, Xue Jiabao looked at this living treasure.

“Work, you first clarify this idea, and then find more references to make sufficient preparations for subsequent papers, although Xiaobai is a thigh, but… After all, this is not the work of one person. ”

“Well, I’m going to start popping my liver.”

Li Mengfan nodded in reply.

The two knew in their hearts that as long as there were no problems with the follow-up papers and programming, there was absolutely no problem in winning the first prize in this modeling competition.

While all the other groups were still complaining and angrily scolding the question-maker SB, Gu Bai had already finished sorting out the modeling outline this time.

Even, check.

After re-examining the words on the file and sorting out the ideas, Gu Bai rubbed his hands and prepared for his next step.

It is to express these written problem solving outlines in the language of mathematics! .

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