Published at 12th of April 2023 06:59:19 AM

Chapter 458 458 Do you know what book the origin of mathematics is? (Two or three more)

Security Bureau.

The second when he saw the "Security Bureau", Yang Baoyi almost fainted!

How could it be here? !

Doesn't the Security Bureau ignore ordinary cases?

Who is Meng Fu? !

She has done a lot of dirty things in her life, she doesn't know how many times she has done threatening things, and they have done more than Jiang Xinchen.

When threatened Jiang Xinchen, she only called two people casually, because that was because she really didn't put Jiang Xinchen in her eyes. .

This is the first time she has been threatened, and it is still a threat to the lives of her family.

Pass the hospital, pass Rui Ze...

Now Yang Baoyi is really afraid, she has no doubt that Meng Fu can make her family disappear silently!

and many more

Yang Baoyi suddenly remembered that Steward Yang told her that Jiang Xinchen was gone. She wanted to ask Steward Yang about the follow-up, but when she called, Steward Yang's son took it and told her Steward Yang was sick in the hospital...

How come you suddenly fell ill all of a sudden?

Yang Baoyi shrinks together, feeling helpless despair for the first time.

**

Jiang Xinchen here.

He follows Yu Wu, his whole person is like a puppet, his mind has no way to think normally.

Yu Wu probably also knew Jiang Xinchen's current state, and did not let him get in the car, so he stood under the car, "Master Jiang, please stand and calm down first."

After a long time, Jiang Xinchen's mind slowly turned around. He looked at Yu Wu, "I, my sister and she..."

"Miss Meng is very good," Yu Wu pinched a cigarette and lit it to himself, biting the **** of the cigarette and looking at Jiang Xinchen, "Then what... the Duan family? Don't worry, I dare not do anything to us.

Jiang Xinchen nodded.

He is indeed a little unbelievable.

Although he is the young master of the Jiang family, he also knows clearly that the gap between the Jiang family and the Yang family, let alone the Duan family, especially the Meng Fu in his eyes, is just a star...

"But Master Jiang, you should improve your strength," Yu Wu let out a puff of smoke and threw the gun in Jiang Xinchen's hand, "This is for you."

Jiang Xinchen's fingers trembled, but his eyes gradually became firmer.

"Anything you want to ask?" Meng Fu was late and walked slowly. He buttoned his hat again and looked at Jiang Xinchen lazily.

Jiang Xinchen clenched the cold gun in his pocket, shook his head, "No."

Meng Fu raised his eyebrows, "Tomorrow you will go somewhere with someone."

Jiang Xinchen didn't ask, but nodded directly: "Okay."

Meng Fu sat in the back seat, lazily propped up the car window with his hands, "Okay, go back to eat."

Yu Wu grinned towards Jiang Xinchen.

Jiang Xinchen pursed his lips and followed Meng Fu, but he did not calm down on the way back.

Going back to eat, Meng Fu took the draft paper from Jiang Xinchen's room, returned to Jianghe to calculate the draft paper, then turned on the phone and sent it to Yang Zhaolin.

Meng Fu: [Picture]

Just a very simple step and answer.

On the phone, Yang Zhaolin received the picture of Meng Fu.

After eating dinner at night, he did not find Steward Yang, so he went to the study to continue the calculations, but he remembered the matter in his heart, always felt that something was wrong, and planned to visit Steward Yang tomorrow.

When Meng Fu sent him a WeChat message, he quickly clicked on it.

They are building nuclear submarines. In modern weapons, nuclear submarines are often used to drop bombs and determine the enemy's position, and they need to use the position to track and locate the enemy's information.

The most important thing for a submarine is to use information to locate a place for the most accurate strike. In order to obtain more accurate data, it is necessary to use Kaman filtering to calculate the optimal state.

There are also various situations. Yang Zhaolin and the others use the UHK filtering algorithm.

UKF algorithm has been proposed for a long time, but if it wants to be really used in nuclear submarines, it is still a little bit. The research team has drawn up simulation scenarios, but Yang Zhaolin and others have done various experiments, and these algorithms have not been calculated.

The measurement update equation and the time equation can be calculated, but the optimal solution cannot be calculated.

The database is huge, the number is large, and there are many interference items. It takes several days to calculate, but the time given to them will end tomorrow. If the optimal solution cannot be obtained, the algorithm must be overthrown and the previous algorithm used. .

Yang Zhaolin thought of Meng Fu mentioned by Jiang Xinchen.

However, I just wanted to give it a try. I didn't expect Meng Fu to actually write the answer.

UKF Yang Zhaolin also studied, the process Meng Fu gave him was very simple, but finally got the result, clarified the accuracy of positioning and tracking.

Yang Zhaolin looked at the brief steps she sent, and recalculated.

Meng Fu has a strong calculation ability, and the calculation process is in his head. Yang Zhaolin spent several times calculating.

At four o'clock in the morning, Yang Zhaolin wrote four densely packed papers, and finally wrote the positioning and accuracy according to several main formulas of Meng Fu.

His eyes are a little black, but it confirms Meng Fu's algorithm.

Yang Zhaolin was overjoyed. Today was the deadline. He didn't even eat any food, so he called Duan Shenmin with these papers.

At four o'clock, Duan Shenmin was woken up by Yang Zhaolin's call, and he heard Yang Zhaolin's excited voice: "My cousin has figured it out!"

Duan Shenmin was also calculating last night and did not go to bed until twelve o'clock. Hearing this sentence, his dizzy mind instantly became sober, Did you come to a conclusion? Go to the research institute and have an emergency meeting. I will call other people.

He quickly got up from the bed, put on his coat, and while washing quickly, he contacted other members of the team to go to the research institute.

**

Yang Baoyi disappeared and the phone could not be reached. Pei Xi searched for the whole night, and finally got through her phone and knew that she was in the hospital.

Before she could go to the hospital, Duan Shenmin called.

She had to rush to the institute for a meeting.

When I went to the office, several other members of the team arrived. Duan Shenmin's team was relatively new. After all, Duan Shenmin was a newcomer. Their data team was only the weakest of the five nuclear submarine calculation data teams.

Pei Xi is one of the higher mathematics city in it.

Since she, a middle-aged man has asked, "Professor Pei, have you figured it out over there?"

Pei Xi pressed his forehead, a bunch of data filled his mind, hearing the words, shook his head, "I don't have one."

The middle-aged man sat back in the chair and sighed.

The group was talking, Duan Shenmin and Yang Zhaolin came in outside, and Duan Shenmin's expression was obviously very excited.

Pei Xi looked at Duan Shenmin's expression, she was taken aback.

Duan Shenmin did not notice her at all. Instead, he put his hands on the conference table and put the steps detailed by Yang Zhaolin on the slide. "Our final result has come out. Everyone will check it. If there is no problem, I will submit a report immediately. Go up."

In this sentence, the entire conference room is fried.

Everyone looked at the screen earnestly, and when they were sure it was really calculated, they were very excited.

"Duan team, you and Zhaolin calculated it?"

"What kind of brains are you all?"

"Great!"

""

The group of people talked a lot, Duan Shenmin narrowed his eyes, then raised his hand to tell the others to stop talking, and finally laughed, "This is calculated by cousin Zhaolin. I will discuss it with Zhaolin and others."

"Zhaolin, who is your cousin? Your family is all perverted? The model has Pei Xi, and the algorithm has a cousin!"

"Quickly, add my cousin to our team, so it's even more powerful..."

""

The crowd talked a lot, and no one looked at Pei Xi.

Pei Xi looked at Yang Zhaolin and twisted her eyebrows: "Which cousin is it?"

Yang Zhao, Lin Shu let out a sigh, and when he heard Pei Xi's words, he smiled, It's Afu.

"She?" Pei Xi couldn't believe it. Her brows tightened. Meng Fu is not a freshman and is not a mathematics major. Her tone is suspicious. "I wrote several model equations and determined the algorithm. But she is really good at computing."

Hearing what Pei Xi said, Yang Zhaolin glanced at Pei Xi. He knew that Pei Xi had always been arrogant, so he didn't speak.

Duan Shenmin smiled and looked at Pei Xi, "Yes, your cousin is amazing, but whoever can compare to your honorary professor in modeling."

Pei Xi said lightly, "Okay, don't talk to me."

"Okay, I won't say anything," Duan Shenmin smiled, "Don't compare these people with you, you are the youngest honorary professor and the youngest winner in China."

Everyone laughed.

"But sometimes the algorithm does need it. Just ask her. It may be difficult to join the group. I will try my best to submit the application," Duan Shenmin said. He glanced at Pei Xi and smiled, "Xixi, I will bother you then. If you persuade, they are all girls, and she might be more obedient to you."

Pei Xi twitched, watching most people in the office showed great interest in Meng Fu, she lowered her eyes and said nothing.

**

Su Huang went to pick up Jiang Xinchen for special training early in the morning.

Meng Fu, she received several WeChat messages from Yang Zhaolin as soon as she got up, asking her if she would like to go to the nuclear submarine team.

Meng Fu pressed reply, lazily unable to go back.

Yang Zhaolin called, his voice was serious: "Cousin, are you really going to learn any perfume? You are like this..."

For a moment, Yang Zhaolin looked like Dean Li possessed.

hurriedly interrupted him, "Brother, if you have any questions afterwards, we can discuss it, and the nuclear submarine is fine."

Yang Zhaolin asked her why.

Meng Fu leaned on the sofa, "I am a good citizen, so I don't engage in weapons."

Yang Zhaolin: "..."

He was silent for a while and glanced at Duan Shenmin beside him. Duan Shenmin gave him a look. Yang Zhaolin felt very complicated. "Then bring Xinchen back for dinner at noon. We have to thank you very much. Also, you helped us solve one. Big trouble, I deserve to be paid."

Meng Fu didn't want to go back to Yang's for dinner. When she heard the reward, she paused, and then said quietly, Since you have to be so polite, then I will make it difficult.

Yang Zhaolin: "...?"

Jiang Xinchen went to train with Su Huang, and naturally Meng Fu could not take him back to dinner.

At noon, she asked Su Di to drive her back to Yang's house.

Yang family, Duan Shenmin, Pei Xi, Yang Zhaolin are all there, and there is a middle-aged man.

Others didn't see it.

The data discussed by their researchers is confidential, so they can't eat in public at will.

The middle-aged man saw Meng Fu and opened his mouth for a long time before staring, "This is your cousin?"

Solving such a difficult algorithm problem, turned out to be a star that is popular in half the sky? ?

Yang Zhaolin introduced the middle-aged man to Meng Fu, This is from our team, Dr. Wu, who was also my instructor before, is now in the same engineering school with Xixi. If you are concerned about the news, you should have seen him.

"Hello, Dr. Wu." Meng Fu touched his nose, quite calm.

Except for Dean Li, she knows nothing in China.

seems to be unclear to Dr. Wu.

Pei Xi glanced at Meng Fu, then withdrew her gaze.

Duan Shenmin apologized to Meng Fu and observed her carefully: "Thank you this time."

Meng Fu sat at the dinner table and waved his hand casually, Don't thank me, I just read this type of algorithm, found the issue of the journal, and brought it in by analogy.

Hearing this sentence, Pei Xi looked up at Meng Fu.

Duan Shenmin and Dr. Wu were also taken aback. They thought it was Meng Fu who did the calculations, "Have you ever had this journal?"

"Well, SCI Mathematics 1-S7 Issue." Meng Fu spoke lazily, and took the cup that the servant handed her.

Pei Xi glanced at Meng Fu, then took out her phone and logged in to the official website to search for it.

She turned to a paper, then sneered, and handed it to Duan Shenmin.

Duan Shenmin took it and took a look. 1-S7 is still a journal from four years ago. This type of journal is outdated. There is indeed an estimate on UKF, which is a bit brief, but it is indeed somewhat similar to today's.

He was stunned for a moment, then looked at Meng Fu, "You know all the journals so long, and you can understand it, it means you are not bad."

is a little worse than calculating it yourself.

Yang Zhaolin didn't believe that it was Meng Fu's own opportunistic tricks, but how did Meng Fu know about SCI journals? Didn't she basically not read it?

He looked at Meng Fu suspiciously.

Dr. Wu also looked at Meng Fu, and Taotao kept on: "Your knowledge is too broad..."

Meng Fu: "...no, I just watched that issue."

Meng Fu is a star. Dr. Wu heard Yang Zhaolin say that she was the top scorer in the college entrance examination, and she then figured out the algorithm by analogy. Dr. Wu was very curious about her and asked her throughout the dinner. Duan Shenmin also paid close attention to her: "You math in the college entrance examination I heard it's difficult?"

Meng Fu nodded: "A little bit."

Chau big interference, see if even Jin Zhiyuan is Waterloo.

Dr. Wu admired, "Then you can get full marks."

"Does the professor know the last SCI paper on the math problem?" Yang Zhaolin smiled and looked at Professor Wu, "Afu can also understand it."

Professor Wu's eyes lit up, he looked at Meng Fu, "You just finished the college entrance examination, can you tell me your opinion?"

Meng Fu glanced at Yang Zhaolin, then leaned back in his chair, squinted slightly, very official, as if reporting to Teacher Galton: "That paper, I think, the most important thing is the final thinking space theory. Poincar guessed there..."

Pei Xi also read this paper.

What Meng Fu said was only the end of the paper.

She chuckled.

Pei Xi could hear it, and Dr. Wu naturally heard it a little bit, but Duan Shenmin didn't understand the paper and didn't hear it much.

was still asking Meng Fu other times.

Pei Xi was so annoyed to hear that, she didn't want to listen to Meng Fu's words anymore. She got up after eating quickly and went upstairs to find Yang Zhaolin's computer. "I'll use my cousin's computer to calculate the model again, it's almost the last point. "

Yang Zhaolin's computer is better than the laboratory's. They all know that they came here today for the purpose of calculation and modeling.

Hearing that she was modelling, Duan Shenmin and Dr. Wu both put down their chopsticks and followed after they finished eating, "Wait, I will check it out too!"

They greeted Meng Fu quickly and went upstairs.

did not look back either.

Yang Zhaolin did not go upstairs. He only looked at Meng Fu, not convinced: "Is that really your analogy?"

Meng Fu: "..."

Former Yang?

She paused, then changed the subject, "What about uncle and aunt?"

"They went to see the aunt in the hospital, and the aunt broke her hand." Yang Zhaolin thought of this, but was diverted from his thoughts, and he frowned.

Yang Baoyi's injury is a bit unpredictable.

Meng Fu lowered her eyelashes to cover the deep cold under her eyes. She picked up the root vegetables: "If you want to see her, take me with you."

Yang Zhaolin nodded, and asked about Jiang Xinchen again, "I will send you back later, and send his airplane model back, and go see Auntie together."

"They studied this model." The two slowly finished their meal, and Yang Zhaolin didn't go upstairs to discuss with Pei Xi. He always felt that there was something wrong with Meng Fu, so he showed Meng Fu the study next to him." What do you think of this calculation model?"

Meng Fu took a look, and he probably understood the model. This model needs to be recalculated. The budget state covariance looks like...

"How does the covariance look like?" Upstairs, Pei Xi just came down. She endured it for a day, but finally couldn't hold it back, and directly took away the files in Yang Zhaolin's hands. "Meng Fu, this is our overall time-consuming calculation for a week It came out, I have just determined the result, you don't want to "look like you" anymore. I admit that your algorithm is good, but the most important thing in mathematics is the model and space view. The algorithm can be replaced by a computer. Since you are familiar with mathematics If you are so interested, go back and take a good look at the origin of mathematics, and study for two or three years. Then you can comment on these papers and models. Do you know what the origin of mathematics is?

**

has been studying UKF for a long time.

Fourth, try to write as long as possible to compensate everyone~

(End of this chapter)