Chapter 6679 Situation

Chapter 6679 Situation

As soon as Xu Yue finished speaking, he was ready to run away. It's not that he couldn't figure it out. He had an idea and the method was correct. But these days, one has to calculate the exact value of pi by oneself, especially for calculating the radius of the earth. The accuracy must be at least an integer. Conversely, pi must be calculated to at least seven or eight digits. Oh no, no. Triangles are easy to calculate, but pi is a hassle.

Li You grabbed Xu Yue and said something straightforward. At this time, Li You really felt that Xu Yue was quite useful. For this kind of thing where nothing could be retained in the mind after reading the question, Xu Yue just thought about it and knew how to calculate. Li You was satisfied with this.

"How is this calculated?" Li You grabbed Xu Yue and asked. He was really curious about this.

"What's there to calculate? Just solve the triangle by the change in degree. But what you actually calculate is the circumference. After that, you can derive the radius using pi. The only trouble is that pi is very difficult to calculate. You have to calculate to at least seven or eight digits. I don't want to cut the circle and force the calculation. It's too uncomfortable. Pure numbers like this are meaningless. I like the mathematical rules behind them." Xu Yue said very dissatisfiedly. He was not interested in calculations. Zhao Shuang liked this kind of thing. He liked mathematical logic.

Although they are both mathematicians, Xu Yue actually follows mathematical logic and studies the laws of mathematics. Therefore, his spiritual talent allowed him to write a usable operating system, because machine code requires logic and laws, and Zhao Shuang follows pure numbers. Therefore, when Zhao Shuang is asked to calculate pi, he can easily calculate tens of thousands of digits.

But if Xu Yue is asked to calculate this, to be honest, he can only use the method of cutting the circle to calculate it slowly. Unless he spends time to make a program specifically for this calculation, otherwise, it will be uncomfortable for Xu Yue to calculate it himself.

To put it bluntly, the normal calculation method for pi is a bit too difficult after the sixth or seventh digit. Although Xu Yue can calculate it, as someone who knows the radius of the earth, he knows very well that if he wants to write out the calculation process, just to take a more accurate value of pi to ensure the accuracy of the integer part of the radius of the earth, the circle cutting method alone has to cut the edges to a 24576-sided polygon...

After all, Chen Xi's question was very clear. We only knew that the interior angles intersecting with parallel lines were equal, but we had to calculate everything else ourselves, which was very time-consuming.

Xu Yue quickly explained to Li You on a piece of paper how to calculate the radius of the earth based on this piece of information. Li You was extremely silent. As a person with spiritual talent, and a leader among them, Li You was more or less aware that mathematics was something that you just couldn't do.

"Actually, the difficulty of this question is not in calculating the circumference, but the radius." Xu Yue said with a sigh, "The circumference in the first half is an easy question."

Xu Yue said this, and Jiang Wan, who was standing beside him, put his hand on his forehead. Is this actually considered a free point question? Ah, this can be considered a free point question.

"Almost. It's an easy question indeed." Chen Xi nodded. "The difficulty of this question actually lies in finding the radius. Because the earth is so big, when you calculate, the minimum requirement is to be accurate to the single digit. However, the existing three-dimensional radius-one can only be accurate to the thousandth digit under this huge circumference value."

Fa Zheng's face twitched when he heard this. This can be considered an easy question? If I remember correctly, I learned math from my grandfather when I was a child. The problem is that I have never seen such a perverted question since I was a child. What a joke, this is considered an easy question?
"It's an easy question. If you tell them the value of pi, there are at least 300 people in the Central Plains who can solve this problem." Xu Yue thought for a while and said, "Anyway, most of the families who study astronomy can solve this problem. The method used by the Gan and Shi families when they first calculated the circumference of the earth was actually similar to this. At most, they didn't react for a while after reading the question, but they will know it after thinking about it."

"The real difficulty is actually calculating pi directly without any prerequisites, and figuring out the radius accurate to the single digit. How many calculations are required at least?" Chen Xi looked at Xu Yue and asked. He didn't give the value of pi in this question, and even if he knew the value of pi, the existing normal value of pi would not be enough to calculate the radius to the single digit. At least six or seven digits after the decimal point would be required.

"It needs to be calculated once each time a side is cut. If there are no mistakes throughout the whole process, it will probably take more than 90,000 calculations of the side length of the triangle and the same number of calculations of the perimeter. My estimate is that if I try to do this problem, I may not be able to figure it out within the specified time." Xu Yue thought about it and said, the test time is too short, and to do more than 90,000 trigonometric function calculations plus perimeter calculations, his calculation ability may not be enough.

There is no other way. The further you calculate, the more decimal points there are, and you cannot take fuzzy values. The actual calculated data is probably in the millions. Xu Yue doesn't want to participate in this kind of cheating game at all.

"I guess, in the entire Central Plains, Zhao Shuang is the only one who can solve this problem to the degree that satisfies Lord Chen within the exam time, and he needs to have spiritual talent to do so." Xu Yue said unhappily.

Do you think the difficulty lies in calculating triangles and perimeters?
That’s just the beginning. The real difficulty comes after you know the super large circumference, but without pi, you need to calculate pi in reverse order!
"Indeed, we can just calculate to kilometers. In this way, with four decimal places, the difficulty is not very high." Chen Xi said after thinking for a while.

Xu Yue sneered when he heard that. He took a gamble. Even if someone who could figure it out could give up after seeing this question, only someone like Zhao Shuang would do this kind of question. It was really a pure test of computing power. Damn it, if you want to be accurate to the millimeter, you need at least a dozen digits.

According to the unoptimized hard calculation method of the circle cutting method, every additional digit will directly increase exponentially. With more than ten digits, Xu Yue suspected that Chen Xi was not looking for a mathematician, but a computer scientist.

"In short, the difficulty of this question is not in what you think it is difficult, but in how to choose the value." Xu Yue said unhappily, "If it is really difficult, it will be extremely difficult."

Human supercomputers have been calculating pi for more than a hundred days and can still continue calculating. The question is only to screen out geniuses among ordinary people. Only those who truly realize the problem are the talents Chen Xi wants.

"Don't you have enough supercomputers?" Xu Yue made outrageous remarks to Chen Xi, not taking Lord Chen's authority seriously at all.

"You know it, why don't you make it quickly?" Chen Xi didn't care about Xu Yue's tone at all, because he really needed a supercomputer. Even if it was not a very powerful one, it would be fine. It would not be a loss to calculate other things.

Xu Yue had nothing to say and ran away. He couldn't stay in such a rotten place any longer.

Fa Zheng, Jiang Wan and others fell into autism as they watched the communication between Chen Xi and Xu Yue. They estimated that they would never make such outrageous remarks about being good at math again. Good at math? Hahaha, there is such a concept as being good at math in the human world. It doesn't exist. The more you know about math, the more insignificant you will feel!
"Then let's take this question as the last big question in mathematics. How many digits accurate can you give?" After Xu Yue ran away, Li You turned his head and looked at Chen Xi and asked.

"It's just a joke. How could I be that bad? Of course, just be accurate to three decimal places. Just a few kilometers will be enough." Chen Xi said with a smile. He was not an animal. How could he be as perverted as Xu Yue thought.

Li You glanced at Chen Xi and was too lazy to discuss the matter with Chen Xi.

"Do you have anything else to say? If not, I'll run away first." After answering Li You's question, Chen Xi looked at the sky, thought about the problem Zhou Yu was currently facing, and decided to go home to sleep and see if he could help Zhou Yu. After all, he had tried his best before, and the situation was not very good. It seemed that Zhou Yu really had a hard time escaping from the divine land.

"I want to run too." Fa Zheng said immediately.

Zhuge Liang glanced at the two of them, raised his hand and signaled them to stop talking and leave. Fa Zheng hurriedly said a few words of thanks, and then ran away decisively. Unlike Chen Xi, Fa Zheng still had some dignity. Chen Xi was definitely likely to run away at any time. It didn't matter whether Zhuge Liang agreed or not. Do you think that was an inquiry? No, it was a notification.

"Run!" Seeing that Fa Zheng was also planning to leave early, Chen Xi waited for Fa Zheng for a while, and the two of them left together, leaving Guo Jia alone on the other side. However, Chen Xi and Fa Zheng had no bottom line and just ran away as if they didn't see Guo Jia.

"Fengxiao, you should go and listen to the music too." Li You called out to Guo Jia who was gritting his teeth. Guo Jia packed up his things and ran away without saying a word. The government office quickly became deserted, and those who stayed behind were truly capable ministers.

"You two bastards didn't even call me!" Guo Jia chased out and yelled at Chen Xi and Fa Zheng.

"We both have things to do when we go back, why are you going back?" Chen Xi said unhappily.

"I'm going back to teach my stupid son!" Guo Jia said with some sarcasm. Of course, this was not an empty statement. Guo Jia's son Guo Yi was indeed not very smart and did not inherit Guo Jia's imaginative wisdom and strategy. However, Guo Jia did not feel bad about this.

"Teaching? I think you should send Bo Yi to General Zhang to practice martial arts. I feel that his physique is inherited from you and is a little weak." Fa Zheng frowned and suggested.

Earlier, Fa Zheng didn't think Guo Yi was weak. After all, Fa Zheng himself was also weak, and without comparison, there was naturally no harm.

But not long ago, Guo Yi stood together with a group of guys younger than him, such as Liu Chan, Sun Shao, Deng Ai and others. Fa Zheng discovered that Guo Yi seemed really weak. Why were those guys so strong?

How could they not be strong? This group of people eat well and are urged to train, so it would be strange if they were not strong.

"You have to practice hard. During the time when Yunchang came back to recuperate, I took my son to see him. Hey, Yunchang's youngest son and grandson have started practicing martial arts." Guo Jia said with a tone full of emotion, "Time flies so fast."

"Tanzhi is really a good person." Fa Zheng added after hearing this.

To be honest, Fa Zheng and Guan Ping were not actually very familiar with each other. Fa Zheng's circle of military generals mainly consisted of Guan Yu and Zhang Fei. As for Guan Ping, Guan Yu asked Guan Ping to call Fa Zheng uncle, and Fa Zheng felt that this was not right. But it didn't seem right to say that they were separate, because they were indeed very close.

So Fa Zheng felt embarrassed to see Guan Ping, and Guan Ping also noticed this. To be honest, there was not much age difference between them, so generally they rarely met to avoid embarrassment. But when Guan Ping got something good, he would remember to give it to Fa Zheng. For example, this time, Guan Ping gave Fa Zheng a fruit horse for his son who was just born and not even a hundred days old.

The Guoxiama is the thing that Chen Xi's son Chen Yu got from Zhang Bao's hands before. At that time, Chen Xi thought it was a foal, but in fact it was not a foal, but a real adult Guoxiama. This thing is inherently small in size, and its height is generally less than 70 cm. It is indeed very suitable to be used as a mount for children of Zhang Bao and Chen Yu's age.

The last time Guan Ping came back, he saw Chen Yu and Zhang Bao fighting over this thing, so this time he brought back a lot of it from the southwest, basically giving one to each child of this age group.

After all, we all know each other every day, so it’s no big deal for a junior to give a small gift. As for how these horses came, Guan Ping said they were caught from the wild.

Although it sounds outrageous, there are really a lot of wild animals these days. Even in the theoretical homeland of the Han Dynasty, there are actually many places that have not been developed at all.

"Indeed, Yu'er likes it very much, and Chen'er likes it too. The two of them ride horses together to chase the big geese..." Chen Xi looked up and thought for a while before saying.

This was what Chen Xi had witnessed with his own eyes last time. His eldest son was teaching his youngest son how to ride on a Guoxia horse and use a lasso to catch a big goose in the Ba River. After catching the goose, they would just run away with the horse dragging the goose. Although the horse was too small and couldn't run fast, after getting on the horse, Cai Chen, who instantly became bolder, under the leadership of his eldest brother and his eldest brother, Chen Tai, actually caught a big goose and brought it back.

When Chen Xi saw Cai Chen at that time, he saw that he was holding on to the noose tightly, his face flushed, and he refused to let go. He was very excited and lively. He no longer spoke in a soft voice as Cai Yan had taught him, but shouted loudly and fiercely. It was obvious that he was very excited.

Of course, for Chen Xi, this child finally has some boyish spirit. If Cai Yan continues to raise him like that, he will become a daughter.

"I feel that boys should be a little wilder when they are young. After having this horse, Chen'er has become much more naughty. He is completely different from the well-behaved boy before. It's good." Chen Xi said with a smile.

"Come to think of it, did you really let this child have the surname Cai?" Fa Zheng frowned and said. People these days are still very particular about this. It would have been fine if Chen Xi didn't mention Cai Chen, but after he mentioned it, Fa Zheng couldn't help but ask a few questions.

"Don't you know that the Chen family has a tradition?" Chen Xi was silent for a while. He felt that he could not argue with Fa Zheng on this matter using normal logic. After all, even Liu Bei, who supported him staunchly, could not understand Chen Xi on this matter. So Chen Xi felt that he needed to use some seemingly illogical but always happening realities that were recognized by people to describe this matter.

"What tradition?" Guo Jia glanced at Chen Xi, as if to say, I'm a native of Yingchuan, come on, make it up, I want to see what you can make up.

"How should I put it?" Chen Xi took a big step forward with his hands behind his back. After a few steps, he looked back at Guo Jia and Fa Zheng standing there. "The Chen family has a characteristic, that is, the direct line of the Chen family can consistently produce elite figures of the same era. However, no matter how outstanding this elite figure is, when a branch line rises, the brilliance of this elite figure will be overshadowed by the genius of the branch line."

Guo Jia was silent for a while after hearing this. As a native of Yingchuan, he knew this joke. Especially after working with Chen Xi for many years, Guo Jia had a clear understanding of this thing. This thing that sounds outrageous is actually in line with reality if you really want to talk about it.

Sima Rangju, Sun Wu, Sun Bin, and Kuang Zhang, not to mention the civil officials, each of these people was far superior to the elites of the Chen family in their time.

"So letting Cai Chen go may not be a bad thing, right?" Chen Xi said with a smile, "Maybe it's not a good thing for the Chen family, but it's definitely not a bad thing for me. Besides, it can also please Zhao Ji and make me feel more relaxed, right?"

"It's just that you have a good attitude." Fa Zheng curled his lips and said, the surname passed down by the ancestors, the number assigned to the Y chromosome is the essence of the surname. If the surname is not changed at will, the same surname represents the same Y chromosome. Although Fa Zheng does not have this awareness, Fa Zheng will never accept changing the surname of his child.

"I don't take this kind of thing too seriously." Chen Xi waved his hand and said, "I really have something to do. I need to leave first. I'll contact you later if you have anything else."

"What's going on recently?" Fa Zheng raised an eyebrow and said, "Come to my house for a drink if you have nothing to do in the evening. Forget the invitation. It's rare that most people are in Chang'an recently."

"Regarding Jiangdong's matter, Pang Shiyuan judged that Meng Kangbu will arrive soon, so I have to release Gongjin quickly. To be honest, even if Xingba is driving the seventh-generation ship, I am still a little worried." Chen Xi sighed and said, "Meng Kangbu's strength is still quite good. If the seventh-generation ship fights head-on, I am not worried that Xingba will lose to Meng Kangbu. The problem is that if Meng Kangbu sees the seventh-generation ship and still fights head-on, then he really has a problem with his brain."

"By the way, has the submarine problem been solved?" Guo Jia asked with a raised eyebrow.

If Meng Kangbu continued to dive all the way, it would be difficult for the Han Dynasty to observe or attack him. After all, the new water flow buffering secret technique that Kushan had developed was too disgusting. The seawater itself would absorb the impact, further enhancing the effect. Meng Kangbu's fleet was hiding under the sea three or four hundred meters deep, and the seventh-generation naval guns would not cause any casualties unless they hit it directly.

"No need to solve it. The Malacca Strait becomes shallower as it goes southeast, and the average water depth is 25 meters." Chen Xi shook his head and said, "Degui's navy is there."

I get up early to work, I feel like I'm really useless, if you have votes please vote, there is really something wrong with the author's level of struggle, sigh