Love is priceless.

In the face of love that cannot be measured by money, what can an expensive villa be?

Wang Hao felt that the reason he thought was very convincing, so he continued to persuade Zhang Zhiqiang for a few words, and then looked forward to the villa that was rewarded.

The city center, Guangxian Mansion, more than 250 square meters, is likely to be finely decorated.

Perfect!

Love is a priceless luxury, let Zhang Zhiqiang enjoy it, he can enjoy the low-end villas.

With security, with villas, life becomes better.

Wang Hao was really relaxed for a while, even if he had already been inspired, he didn't continue to do research.

People are not machines, and they still need to rest.

Wang Hao instructs students in the Mason Tree Laboratory, occasionally goes to the classroom to give lectures, and also opens a small \ class in the laboratory, and the leisurely life makes people sink into it.

But research still needs to be done.

Wang Hao occasionally uses his brain to think about new research and development ideas, and the main idea lies in the study of the NS equation

Trajectory correction of functions" is to find inspiration for completing the direction of the NS equation.

After completing the relevant research, he also knew the subsequent direction of the NS equation research.

That's related to the computational logic.

In the previous study of the NS equation, there is an approximate solution for the system of partial differential equations, and a more approximate solution can be solved, and the limitation is beyond that.

Approximation, always approximate.

Even for an ordinary system of partial differential equations with exact solutions, it is possible to find the exact solution by this analytical method.

This is just an approximate solution analysis method, which is consistent with the idea of actually solving the solution.

Ding Hui completed the study of "parameter calculation logic" through a simple argument of regression with Luo Xiaoyong, so he could not solve the partial equation system in a more refined way according to that idea.

The original way was to find the approximate solution by analyzing the substitution, but now by clarifying the calculation logic of the system of partial differential equations, it is impossible to find the "finite extension applicable solution set".

The numerical method is the breakthrough point, relying on computational logic analysis to find the "optimal solution" br/

For example, a system of partial differential equations does not have seven solid parameters, two of which can be solved exactly, and two of which can only be approximated.

That method will not be able to find the exact solution explicitly, and make the two more approximate.

Of course, not having an exact solution is a common case.

In the vast majority of cases, there is no exact solution, so it is not possible to clarify the solution of one of the unknown numbers by substituting the numerical method, and expand and find it by analyzing and calculating the association

My low approximation solution.

The solution method will be more approximate than the original method, and if it can not be accurately unassembled, it cannot be substituted to find the exact ungroup.

"Regression analysis through finite extension, and then find the corresponding applicable solution set."

"That makes the solution more muddy, more precise, and more approximate of the solution."

"But what's the point?"

Before Ding Hui made a summary, he had to think of the problem of application. The method I used really doesn't give a more accurate degrouping, but the corresponding computational analysis

A small boost.

Other scholars who want to use the same method to do analysis, the threshold for understanding the method is not very low, and they need to master very little cross-disciplinary knowledge.

Even if you don't know how to solve it, it takes a long time to find a set of solutions.

"If you're talented, maybe a week?"

"Worse, maybe a few months..." Ding Hui didn't think about it for sure, but judging by the content, even if it was Professor Zhou Qingyuan's level, it would be

Poor talent".

The main reason for the poor judgment of talent is that he is good at "simple analysis", and he may be unfamiliar with the method of simple analysis.

At the same time, scholars who are good at analysis must be proficient in partial differential equations.

Needless to say, it also involves the knowledge of function analysis, computational mathematics, etc., and the threshold is not low enough to exclude the vast majority of mathematicians.

That calculation method is so difficult that it's almost possible to cover the application.

One is the possibility of using computer regression analysis.

Seventh, it has been a regressive analysis for a long time, and the requirements for scholars are too low.

On the other hand, even if a more precise solution can be found, the significance seems to be small.

For example, the interior design of the aircraft.

There are too few things to consider in the design of the inner shape, and it is possible to change the direction of the wing or other parts of the wing specifically for "more accurate calculations".

That kind of direct application design, special approximate solution is not enough.

"So, is that research pointed?"

"But it's also possible to publish it." Even if you want to find the application direction for the time being, because the solution of the NS equation is directly related to the application, the non-theoretical content can be straight

Pick it up.

That made Ding Hui very embarrassed.

I always feel that it is too wasteful to write a paper and submit it for confidentiality.

Even if it is a confidential archive, there will be few people to view such a difficult content, and it may be that before the confidential archiving, the paper will always be outside the confidential document

Ten years, no one will grasp the content.

"So, you design an airplane yourself?"

"Calculate and design by yourself, and design to the most perfect state in theory, which cannot minimize the increase in resistance and increase the downward thrust, and the same power can fly

Further..."

"It doesn't make sense!"

Ding Hui's eyes lit up as he thought about it.

Before I was born and drew a picture, I buried my head in the calculations.

Zheng Guofeng pushed the door and walked back, I saw that Ding Hui was busy, so I waited next to me for a while, until Ding Hui raised his head, and then asked, "Did you disturb him?"

"It's related."

Zheng Feng said with concern, "You're just designing something."

"Design what?"

"Airplanes."

Zheng Fengjin was stunned for a moment, his face was confused, I glanced at the things under the table, and found that they were all a small pile of simple mathematical calculations, and there was a complex airplane painted next to it

Is it really an airplane?

I thought I had heard something absolutely secret, so I quickly covered my mouth, and even my ears, and walked forward several times in a row before I said, "What are you?

You have heard it, you know it, you know everything. 「

Ding Hui gave me a strange look and asked, "Are you okay?"

"That's right."

Zheng Guofeng remembered the purpose of looking for it, "Is he going to say next time that there is no - a four-million project?" A project with WISCO? How's it going? You and the space agency

The project was born and debugged, and the previous continuation was not a retrogressive modification and finishing, and then waited for the space agency to dock. 「

"You've been idle for the last two days." I sighed and continued, "You guy, you're all over when you're free."

Ding Hui was stunned, and I wondered, "Really? Is he happy when he is free? 「

I walked over and looked at Zheng Guofeng and gave a suggestion, "If that's the case, when you go to the office early, Zhu Ping said that there is no small pile of homework to be corrected, but he doesn't

To help you correct your homework? 「

"Not yet, the workers in the newly built building of our laboratory are busy, and he is also busy, not yet, you see that a few doctoral students are very hard, he will help us buy lunch."

Zheng Guofeng grinned hard when he listened, and held back a sentence for a long time, "The rest of you are not sick!"

Ding Hui laughed.

Of course, I know what Zheng Guofeng means, I don't want to do less projects, take a little less labor fees, and the cooperation with WISCO is a personal project of Ding Welding, and I will find others to do it together.

However, there is also a little labor fee.

Ding Hui sat back, "Brother Zhang, this project is still slowing down, wait for you to finish the work outside of your hand." He waited, he really wanted to do the project and find someone to help him. 「

"It's okay to say this delay, but don't tell Professor Qi, this guy is always ......."

"Ahem."

Professor Qi Xiao stood at the door and coughed, glanced at Zheng Guofeng angrily, and then snorted and said to Ding Hui, "You debugged the program just now, is there any problem?

Is it born to let the space agency dock here? 「

Ding Hui nodded, "You can talk to us about this."

Qi Xiao glanced at Zheng Guofeng again, and snorted again angrily.

Zheng Guofeng was even more embarrassed.

At the same time.

The 137th Institute ushered in Zheng Guofeng, the head of the Eighth District of the Aerospace Industry, and was accompanied by several professors, including the leaders of the two military regions.

The group came to 137 to investigate.

In recent months, we haven't just cut off our research institutions to learn about the latest research retreats.

Before understanding the information that is not available, it is possible to comprehensively discuss the direction of missile development.

For any research, the formulation of small directions is the most important, and the eight zones of the aerospace industry attach great importance to this.

Zhang Zhiqiang and Pang Sibo greeted them at the door with people from outside the office.

Zheng Fengjin and his entourage were welcomed out of the institute, and then retreated to visit the main research building, and we also went to the equipment laboratory room in front to check the experimental equipment.

When he returned to the conference room, Zheng Guofeng sat up and asked, "Professor Zheng, haven't they retreated from the ballistics research they are in?"

I continued, "They have made very little contribution to Qian Xuesen's ballistic research, and that direction cannot be further explored. And then you went to 136, and we were there

There is no retreat in the direction, saying that there can be fewer changes in the trajectory of the ballistics, and you listen to the whole report, and you have no idea! 「

I said that to put pressure on Zhao Xingli.

The 136 and 137 institutes also do ballistic research, but there is still no competition with each other, and each institute wants to overpower the other, and if scientific research encourages that kind of healthy competition

Target.

Zhao Xingli seemed to feel the pressure of being served, and I smiled, "It's nothing, your research should be low-end."

"Oh?"

Zheng Guofeng was interested, and other people next to him were also interested.

Zhang Zhiqiang shouted to the front, "Wang Hao, come and introduce to Academician Zhao the latest research of our institute."

"Here we are."

Zheng Feng snorted, hurriedly walked to the back, and introduced, "Academician Zhao, you are currently developing a new way to change the orbit of a missile.

"If you can complete that research, you will be born to regress and upgrade the special missile, so that the special missile cannot have absolute penetrating strike capability."

"That kind of penetrating strike ability, when the missile is born, can be born to change the trajectory in time, and the previous will automatically adjust to the trajectory that can hit the target."

"In addition, theoretically, there is a limit to the number of orbit changes, and it will only be affected by power technology."

"When that technology matures, your special missile will be able to penetrate the existing anti-missile system!"

Wang Hao said excitedly.

137And the others who were present held up their heads with pride.

Zheng Guofeng was stunned.

The others who came with him were also stunned.

Zheng Guofeng looked at Wang Hao for a long time, then at Zhang Zhiqiang, and then at Zhang Zhiqiang, and it took a long time to hold back a sentence, "Are they joking?"

"You're not doing that research." Zhang Zhiqiang said very seriously.

Zheng Fengjin asked with confusion, "I'm sure you heard it right, they are talking about a missile that can change its trajectory at any time. There are definitely no enemy missiles coming, guided

Will it automatically change the trajectory? 「

"And then it can automatically adjust and change back?"

"Are he sure he's talking about ballistic missiles? It must be a cruise missile that has been artificially controlled, and you can still doubt ......"

"Hahaha~~「「

Zhao Xingli laughed when he heard Zheng Guofeng's words, "Academician Zhao, don't say that he is suspicious, you are suspicious in the end, but you have not perfected it yet

Talked. 「

"Wang Hao, let's talk about it again!"

Zheng Feng immediately spoke energetically.

Before the repeated explanations, Zheng Guofeng still didn't understand too much, but nothing was certain, Zhang Zhiqiang and Wang Hao were joking.

It can also be seen from the expressions of the other 137 personnel.

We're really working on that research, and we don't think there's a theoretical basis yet.

That surprised Zheng Guofeng very much, and I asked Zhang Zhiqiang loudly, "You still don't understand it now, can you tell me where the foundation of that technology came from?" be

Could it be the Wang Hao behind the eyes? Do you think I have that level? 「

Zhang Zhiqiang leaned into Zheng Guofeng's ear and said two words heavily

"Zheng Feng!"

Zheng Guofeng suddenly didn't feel a sense of sudden realization, the mathematical logic that was born in this way can be completed for a long time, and it is not something that can only be completed by these top mathematicians.

Really!

Ding Hui, that would make sense.

But is it OK to be correct?

Zheng Guofeng was still not born, because the technology I heard was too low-end, so low-end that it felt like it had crossed the times.

I had to be vague.

Westsea Elementary School, Mason Mason Mathematics Lab.

Zheng Guofeng, Qi Xiao, Zheng Yaojun, and several students, including Xu Chao and Qiu Hui'an, all gathered in the director's office.

Let's look at the so-called "small \ results" under the table.

Zheng Fengjin walked over, picked up the "small achievement" under the table, and asked Ding Hui with a complaint, "Isn't that the little research he said? That's not what he designed...... i

Machine? 「

I have a paper airplane in my hand.

The paper airplane is very simple to fold, it is cut and spliced from seven ordinary sheets of cardboard, which looks quite rough.

However, it is still a paper airplane after all.

"He's big-hearted! Don't fold. 「

Ding Hui hurriedly reminded, "You folded half a young age!"

There was a collective silence outside the office.

Several people looked at each other, and we thought we understood what Ding Hui was thinking, studied a small amount of mathematics that was born, and said that we wanted to design an airplane by ourselves, and then folded it before that

―A paper airplane?

The paper airplane was indeed folded very wrongly, but ......

It's not weird to think about it!

Helen walked over and looked at the paper airplane sloppily, and suddenly said to Ding Weld, "Mr. Wang, he must have designed such an airplane after a few calculations, right?"

"Wrong."

Ding Hui gave Helen a commendatory look, "It took you eight days just to calculate, and there were very few simple problems of dynamics involved.

I took the plane from Zheng Fengjin's hand, put it back under the table, and continued, "When they look at the plane, the thickness of each part is the same, even if it's the plane

There is no difference, they look at the wings, the tail, the thinness, direction, and position of each part are all calculated in detail, and even the amount of glue in the middle layer is used

Finely weighed. 「

"You've also designed two thin wings above the wings to make the plane more stable."

"It's a very aerodynamic aircraft, and it's a design strategy that you've calculated. Its construction, to a certain extent, is even said to be perfect at birth. 「

I nodded and listened for a long time, but a few people thought it was true.

A paper airplane, perfect?

At that time, Ding Hui said the first sentence, "It may be the farthest paper airplane that can be thrown in the world."