Chapter 137: Pi

The surrounding people took refuge under the eaves on both sides of the street because of the scorching sun.

"Second baby! Your mother told you to go home for dinner! ”

"Oh!"

Unconsciously changed the time for eating, and the questions from the two were posted on the public list, and some people in the crowd were inevitably interested in numbers, but they found that they couldn't even understand the questions.

Tang Sha's forehead had begun to reflect, and sweat was raining.

Tang Sha doesn't care if it's hot or not! She's really on the bar with this pi today!

The algorithm Tang Sha knows that Zu Chongzhi used regular polygon cutting. Draw a hexagonal line inside the circle to calculate the approximate pi of three. Pi is the ratio of the diameter of a circle to its circumference, which is 3.1415926 that year......

The more sides of the polygon, the closer the shape is to the circle, so that the calculated value is closer to the fixed ratio of the diameter of the circle to the perimeter.

Tang Sha began to make a drawing, drew a circle, and simply drew a hexagonal shape in it. Auxiliary lines are added, the intersection points are marked with ABCDO, etc., and then an n-sided shape is assumed, and the length of the regular row is An, etc.

The Pythagorean theorem, the square difference, the square root formula, etc., calculated the formula for pi π=n/2×A2n

It is not difficult to reason about this formula, as long as you have studied high school normally, you can calculate it. The hard part is the calculations that follow.

Suppose that the time of the hexagon is the time of the twelve-sided line, all the way up to the ninety-six side. The length of the side is used to express pi. Finally, suppose that when n is equal to what is, pi has a corresponding value.

Tang Sha is in this calculation again, let himself go. The whole person is going crazy.

As for the boy on the other side, his hair was scattered and he was caught by himself. His mentality collapsed at this point. In the past, I felt that there were few people in Chen Guo who could compare with him. But now this question is really something that no one has ever thought about.

He considered the unreasonableness of this question, but after thinking about it carefully, he felt that there was a law to it, but he had no way to start with this law.

Looking up at Tang Sha again, there were more than a dozen pieces of paper full of them, all of which were full of strange symbols.

Does this guy know or is he scribbling? Hmph, how would he know? I and my teacher have been studying for so long, but we have only roughly calculated a three. He didn't believe what she could do!

There were fewer and fewer onlookers, and in the end there were few people left. Qu Gu took a little mistake and they bought some cold drinks from Xiaoming Restaurant, which is rare in the world.

This ice drink is a new model that came out only a few days ago, and it was bought out as soon as it came out.

The group of sons and brothers from the imperial city also followed them to buy some, and found that there was actually a Xiaoming restaurant here on the street, what does it have to do with Xiaoming Bookstore? At first glance, the name is a boss.

But this cold drink is really delicious, and the imperial city doesn't have it. No, you must bring back the cooks here!

They bought something and went back, and the two of them were still counting.

Xiao Cuo sensibly walked to Tang Sha's side with the ice drink in his hand, scooped a mouthful and fed it to her, Tang Sha opened his mouth to eat, not caring that this spoon was eaten by Xiao Cuo.

The prince of the imperial city did not admit defeat, and also ran up to feed, but what he got was a rolling word.

This son-in-law, who is calculating problems with Tang Sha, is Lu Pengyun's closed disciple. He has a very high talent in arithmetic.

This time I came to Diancheng because Tang Sha wrote in the daily column of the twelve young people in Diancheng that they were good at arithmetic.

Otherwise, how could he be in the company of this group of gentlemen? The teacher didn't know that he had come to the city. I was afraid that the teacher would blame myself when I found out, but now it seems that I am completely overly worried. After taking this question back, the teacher is afraid that he will only indulge in it as much as himself.

Later, even small mistakes were not difficult for them to wait. The problem that the eldest brother can't solve, this kid seems to have a good level!

Those sons and brothers in the imperial city were even more impatient, and a few even ran to the Yuhua Building in the city.

As the sun set, Tang Sha's furrowed brows began to unfold. Because it's finally over. Although it can't be too specific, three points and one forty-one can still be calculated.

The sun was completely hidden in the corner of the city. It was not yet completely dark, and the lights began to turn on in the city.

The group of people from the professional group also lit the lamp for them, Tang Sha gestured, exhaled deeply, and put down the pen.

"Labor and management should treat themselves!" Tang Sha stretched his waist and smiled at the professional group.

Then I began to pack up my papers, one by one and in order. I personally took it and walked to the front of the professional group that was also working hard.

The group sensed that someone was coming to them, and they looked up, and their faces were confused.

"Done?"

"Or else?" Tang Sha raised his eyebrows and asked.

The others also raised their heads one after another, staring at the paper in Tang Sha's hand with blazing eyes.

Tang Sha handed over the paper.

Over there, Xue Yu, Lu Pengyun's closed disciple, also stopped his pen and walked over in disbelief.

An elderly bachelor of the professional group took over Tang Sha's manuscript paper. I started to look at it.

However, he couldn't understand what Tang Sha was writing at all.

Tang Sha looked at the bachelor's expression and seemed to understand something! ! With such a large amount of calculations to use Chinese characters, she just admits defeat.

Tang Sha took another piece of paper, wrote down the correspondence between the numbers, and explained the meaning of various mathematical symbols. Only then did those bachelors know what Tang Sha wrote.

The old bachelor couldn't reflect it at all, so he picked up his pen and began to write it out in a man's voice. The old bachelor writes very fast, and he has to write it at the beginning, but he doesn't control it later.

It took about an hour for the old bachelor to finish writing.

After writing it, the old bachelor didn't look at it again, but calmly handed what he had written to others for circulation.

He sat in his place by himself, his head hung down, not knowing what he was thinking.

After everyone watched it, not a single person spoke. It's all like the state of an old man.

The rest of the people were inexplicable.

Xiao Kuo couldn't wait, and asked loudly, "Eh! Who the hell wins! ”

Tang Sha turned his head and reached out to pat Xiao Wrong's head: "Call Bachelor!" ”

Xiao Cuo touched his head, pouted, and called respectfully: "Bachelor! ”

"Alas!" The old bachelor sighed: "The future life is terrifying! A ragged colt may make a good horse! We're all old! ”

A few people next to him sighed.

Xue Yu was even more anxious, on the one hand, he hoped that Tang Sha would not be able to calculate it, firstly, he would not have to lose, and secondly, the teacher had studied with him for so many years, if it was calculated by a little hairy child who was less than twenty, then what face would they have!

But there is another expectation, if Tang Sha really solves this problem, then one of his knots will also be untied.

The old bachelor's terrifying offspring made Xue Yu understand something, and he directly stepped forward and picked up Tang Sha's manuscript. Look at the explanation again.

Tang Sha raised his eyebrows and looked at this Xue Yu, this receptivity is a bit strong! At a glance, you can skillfully match, tsk, high-IQ people.

Tang Sha knows what he is like, his IQ is mediocre, and he can be regarded as clever at best. I just know a lot. If these people live in the original world, they are not members of the same world.

Xue Yu's eyes widened more and more, and after reading the last page, he suddenly realized! I see! I see!

There was ecstasy on his face! The next moment, this expression froze on his face, but unfortunately this thing was not something he came up with.

Tang Sha shrugged: "Don't look at me, this thing didn't come up with me!" This is calculated by an old man named Zu Chongzhi in our hometown. ”

"The old man ......" Xue Yu was overjoyed and wanted to ask something, but was interrupted by Tang Sha before he finished speaking.

"I went west." Normally, in this case, the other party would ask to see an old man, just like when Ye Yu wanted to see Tang Xianzu.

Thinking of Ye Yu, maybe he had already returned to the Imperial City at this time. That kind of place is where they really should be.

Tang Sha felt a little sad, what kind of person would Ye Yu marry in the future? Married? Marry someone you don't like? It's not as free as Yuejiao City.

"That's a shame!" The stone in Xue Yu's heart fell, it's okay like this, it's okay like this.

"How do you know that?" Xue Yu frowned, remembering the crux of the matter.

"Our village is a retreat for the world's masters, and they are all my teachers."

"You mean, besides Zu Chongzhi, there are other masters?" Xue Yu suddenly took a step forward and reached out to grab Tang Sha's arm.

Tang Sha subconsciously shook him off, took a step back and said, "Hehe, our village was burned by mountain bandits, and I don't know where they went." ”

Xue Yu was stunned for a moment, and when he grabbed Tang Sha's hand just now, he found that his hand was actually so slender. And in addition to the smell of sweat, there is also a hint of aroma on the body.

After getting closer, this face actually looked a little feminine. Xue Yu had some doubts in his heart.

"You have some skills, too! Would you like to go back to the Imperial City with me? Xue Yu directly threw out an olive branch. If such a person is let go, the teacher will not agree.

"Eh, don't, we are also free and easy in the city, and there are many rules when we go to the imperial city, and we can't afford to offend you big people, so it's time to forget it." Tang Sha refused very clearly.

"With my teacher here, no one dares to touch you easily in the imperial capital!" When Xue Yu talked about the teacher, his eyes were full of reverence.

"Your teacher ......"

"Lord Lu Pengyun, a scholar of the Hanlin Academy, the second grade of the official residence, do you know him?" Xue Yu's chin was raised, quite proud.

Although the scholars of the Hanlin Academy are second-class officials, they are protected by the emperor above, and there are a bunch of literati behind them, so naturally no one wants to provoke them.

"I've heard of it, and thank you for your solicitation, I'm really not used to it, and for arithmetic, I still prefer to do a little business." By the way, it would be even better to do something great for the country and the people.

Xue Yu felt that Tang Sha was a little ignorant, but it was common for talented people to be arrogant. If you don't go, you won't go!

"Oh, by the way, if you want to learn something else, you can deal with Xie Chuan." Tang Sha kindly reminded him.

"Do you recognize Xie Chuan?!" How could Xue Yu not know Xie Chuan, the disciple of Wang Taifu and the righteous son of General Zhou. Lu Pengyun and Wang Xuan have always been in the same vein, and Xie Chuan himself has met him twice. This person's behavior is slightly frivolous, and his mouth is also very harmful.

Of course, it is possible to make Wang Xuan recognize him as a disciple, and he has his own merits. It's just that Tang Sha, the eldest brother of the Twelfth City of the Upper City, also knows Xie Chuan, so it's a little strange.

"Some friendship." Tang Sha smiled, Xie Chuan's kid is mixing well, isn't there more and more of his thighs? In the future, I am afraid that one day I will walk on the street and report those people behind me, tsk, it will be sour to think about it!

Those who are close to Zhu are red and those who are close to ink are black, this Tang sand is afraid that it is not simple.

"Then Tang Gongzi knows the boss of this Xiaoming Bookstore?" If you don't know each other, you won't open a column for them, Xue Yu still understands this.

"Do you have a problem?" Tang Sha looked at him a few times, he wouldn't look for fault!

I really know! Xue Yulian asked excitedly: "I don't know if I can let him record the rate of one on Wednesday in the column of the magazine." ”

Oh, the wording is very slippery, it seems that I usually buy books from Xiaoming Bookstore.

"Yes."

"And ......"

"What else?" Are young people nowadays asking for so much?

"You gave me that question......" Xue Yu's meaning was obvious, he just wanted Tang Sha to tell him about it.

What does this Tang Sha say? I didn't think about letting the other party figure it out when I wrote this question! She will use formulas herself, and the specific principles are all Western, and she doesn't know. Then the matter can only be fooled.

"If it's messed up, I can't figure out the answer." Tang Sha ruffian laughed.

Xue Yu: ......

"Wow, you look like you're trying to kill me, young man, it's going to jail. This game is considered a draw. ”

The group of professionals didn't seem to be in a good mood.

This challenge is over, and no one cares whether they win or lose. Tang Sha went to the bookstore that night and gave the text version written by the old scholar to the bookstore to print it overnight.

It was sent out the next day.

Some of the sons and brothers returned home, and some continued to stay in the city for a few days. I also want to pry the corner of the Tang sand wall. Tang Sha has applied for a patent for this thing, it is only two years, and this thing can only be eaten in summer, Tang Sha plans to let Qinglan open one in the imperial city, and the formula can be provided here.

As soon as that issue of the magazine came out, the academic community was shocked. The name Tang Sha became popular in Chen Guo's academic circles.

There are also people who come here.

After Xue Yu went back, he told his teacher what had happened from beginning to end. Lu Pengyun not only did not blame him, but also praised him.

In addition, he also brought back the topic that Tang Sha came up with. So the second half of Lu Pengyun's life was dedicated to this thing.

Tang Sha naturally didn't know about these things, and in July, Mo Chuanxiang came back from Yicheng.

Potatoes were planted in a second wave.

The net on Lu Ren's side was also established.

It was really Mowen who had an accident with the Mo family, and he was assassinated, but fortunately, he didn't die. Mo Chuanxiang pursued this matter and found nothing.

Mo Wen said to Mo Chuanxiang that he was from the Qing family. Mo Chuanxiang felt that this matter was not so simple. It can't be the Qing family! It was too late for the Qing family to protect him, why did he come back to kill him? And wouldn't it be nice to do it directly to Qingzheng?

It's not the Qing family, who else knows about this? The old ghost is dead, and the uncle has been out of the rivers and lakes for a long time, and I'm afraid no one will know.

Mo Chuanxiang delayed for three months, on the one hand, he arranged the affairs of Yicheng, and on the other hand, in order to save Mowen's life, he directly took Mowen with him and asked him to go to the city with him.

So when Tang Sha saw the ink incense, he also saw the ink text that he hadn't seen for a long time.

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Sogou