Ji Tang

Chapter 433 A master of arithmetic?

Chapter 162: Master of arithmetic?
It is the most beautiful day in April in the world, when all the peach blossoms have fallen and taken on a new look.

It was already April on the top of Taibai Mountain, and there was still a hint of chill, which was in sharp contrast to the heat below.

Today is the day for Taibai Academy to recruit students. It would have been good to have more than a thousand people, but looking at the ant-like crowd at the foot of the mountain, Ji Song confirmed that he had underestimated the persistence of scholars in this era for any opportunity.

"How many people will be recruited today?"

Li Shimin looked at the students at the foot of the mountain with somewhat complicated eyes. They were all the elites of this era, and there were definitely many good talents among them. However, because the aristocratic families controlled the promotion channels, they could only wait for the opportunity year after year.

After the news of Taibai Academy's enrollment spread throughout the elite areas of the Tang Dynasty, some people had already dug into the situation of the academy.

Of course, this is also the reason why Ji Song deliberately let them know, he just wanted to dig out some people.

I’m telling you plainly, aren’t you just learning because of your pride? Don’t you hate not having a chance all day long?
Now, the opportunity is right in front of you, it depends on whether you dare to come or not.

During the more than ten years of war in the late Sui Dynasty, countless people died and many talented and learned people were buried.

Ji Song was not sure how many people could be unearthed this time, so he could only do his best to pass on the news.

Ji Song, standing behind Li Shimin, said: "According to the plan, there are only 300 people, but it seems that there are a little less."

There are indeed fewer people. There are no less than 2000 people at the foot of the mountain now. Even if you exclude those who make up the numbers, there are no less than a thousand people.

With so many students, it would be strange if nothing happens if we only take 300 students!

"For such a big academy, you only admit 300 people?" Li Shimin said in disbelief, pointing to the academy at Yamashita University.

Looking with his fingers, a huge building under the mountain was looming in the shadow of the trees.

As a teaching area, there are three areas covering an area of ​​more than [-] acres. Such a large place is more than enough to teach a thousand people at the same time.

Ji Song smiled bitterly and said, "It's not that I don't want to recruit, but there really aren't that many suitable teachers!"

The fact is that the teaching force prepared by Ji Song is less than 50 people, including a dozen students who came back from the south.

Due to various reasons, they could no longer go to sea. Ji Song also understood that this was a personal wish. He had known that this day would come, and he was not disappointed!

After all, everyone has their own ambitions, so there is no need to force them.

On every road, some people will quit and some will join. As for whether the choice is right or wrong, only time will prove it.

After these dozen people left, hundreds more people joined Ji's school. They had already set off with Ji Qing and others.

This is the second phase of the planned exploration, all heading towards the South China Sea. According to the plan, this time will last half a year, and by then, no matter where they go, they must return.

Otherwise, even if the plan is completed perfectly, there will be no chance to go to sea again. This is Ji Song's strict order to these young people, and there is no mercy.

In the ever-changing sea, not obeying the command is the biggest crime, and there must be no tolerance!
Except for these dozen people, the rest are scholars who have made extraordinary achievements in their respective academic fields in the Tang Dynasty.

Some were invited by Ji Song with high salary, but more were attracted by old Li Gang.

Otherwise, Ji Song wouldn't have the dignity to invite them here.

"Your Majesty, this is not a question of whether the house is big or not. You have read the academy tutorials. There is a lot of knowledge here that cannot be found in the Tang Dynasty!"

"Let's not talk about Confucianism. This is a school that has been passed down for thousands of years. Now it has the image of dominating the world. It is not surprising that there are more people!" "But other things are different. Just study it and you can achieve something. Almost all of them have been dragged into the court by you, and the few in the opposition are pitiful. These few were invited by the thick-skinned brats, and even now the boss is not happy."

Speaking of this Ji Song, he was a pretty girl. An old man who was almost sixty years old was simply a fool. He never married, had no children and no family in his life. He devoted all his life to arithmetic.

When Ji Song followed the teacher's guidance and came to a village and saw an old man, he almost dropped his eyes.

He was wearing an extremely dirty sheepskin jacket, and his long hair that covered the floor even covered his face, which was unkempt.

If it weren't for those bright eyes, he would have thought he saw a savage.

According to Li Gang, this person was his good friend when he was young. He was also a high-spirited young talent, but for some reason he became obsessed with arithmetic, and he became obsessed with it.

This would have been more than forty years. If the teacher had not sent people to help him frequently, and the villagers, although they avoided the old man, they did not bully him and even gave him some food during the holidays.

He had endured it for all these years, until the moment when Ji Song saw him.

He didn't pay too much attention to it at first, but when he saw the very familiar numbers on the ground, he couldn't help but be shocked!
Without saying a word, he directly asked someone to pack up the old man and all his belongings and send them to the academy, along with a small building worth more than 3000 yuan at the time.

A maid, a cook, and a student from Ji's Academy were sent directly to the small building by Ji Song.

This is Li An. After all, he was sent by Pingyang. He must take care of his own people no matter what.

As for why Ji Song spent so much effort to forcefully bring a dying old man here?Not only did Ji Song not feel worthless, he also felt that he had made a lot of money.

Oh my gosh, pi is eighth!

Ever since Zu Chongzhi during the Southern and Northern Dynasties calculated pi between the seventh and eighth digits more than 100 years ago, no one has been able to calculate it any further.

But the person in front of me actually calculated pi to the eighth place. Looking at the subsequent trend, it is estimated that the ninth place is not impossible.

If such a great god is encountered by him, he will turn him away unless his brain is crazy.

Pi is widely used, especially in astronomy and calendar. All problems involving circles must be calculated using pi.

In "Zhou Bi Suan Jing" and "Nine Chapters of Arithmetic", it is proposed that the diameter of a circle is three times, and the pi ratio is three times, that is, the circumference of a circle is three times the diameter.

Since then, through successive generations of explorations by people with lofty ideals, the calculated pi value has become increasingly accurate.

Zhang Heng of the Eastern Han Dynasty calculated the pi value to be 3.162.

During the Three Kingdoms period, Wang Fan calculated the pi value to be 3.155.

When Liu Hui, a famous mathematician in the Wei and Jin Dynasties, wrote annotations for "Nine Chapters on Arithmetic", he created a new method for calculating pi - circle slicing. The value of pi is the side length divided by 2, and its approximate value is 3.14; and explained This value is smaller than the actual value of pi.

After Liu Hui, scholars who made great achievements in exploring pi include He Chengtian, Pi Yanzong and others in the Southern Dynasties.

The value of pi obtained by He Chengtian is 3.1428, and the value of pi obtained by Pi Yanzong is 22/7≈3.14.

But Zu Chongzhi calculated it to be between 3.1415926 and 3.1415927.

This is an achievement that spans the ages. It was only in the 15th century that those in the West broke through this limit and reached No. [-].

(End of this chapter)