Li Shimin and Changsun Wuji leave.

The situation in the hall is a bit clear.

Li Chengqian and Du He were squeezed together.

Li Tai pulled Li Yuanying and spoke aside.

Li Zhi was shameless and went to accompany Xiao Yizi, and the princess of Hengshan County played beast-fighting chess.

Li Yuanai could only talk nonsense to Changsun, whom he had just met.

Li Yuanai briefly talked about the entire project: "The three villas occupy too much land. Judging from the land deeds, the three villas have a total of 310 acres. I asked someone to measure them on the spot, which is far more than this number. It is about 380 acres, and there are seventy acres more. For such a large place, we can only start from the key points, first build the central pavilion, and then advance step by step from the inside to the outside. However, it is really necessary to take it step by step, and the progress is a bit slow. I plan to use the staged construction method to focus on the pavilion of Xiao Zhongnan Mountain and the remaining places. In addition, the central building and construction are also divided into the winery friends introduced to me. His connections are indeed extraordinary. The craftsmen he found are all good players, which saves me a lot of effort."

When Changsun Chong heard Li Yuanai say a few acres, he suddenly thought of a case he encountered quite a long time ago and asked: "I have encountered a headache before. I wonder if the King of Shang can give me advice."

"you say!"

Changsun Chong said: "There were a case of land disputes in the royal family many years ago. King Guangping Li Xiaoci and King Hejian Li Xiaoyou fought for a piece of land. The King of Huai'an died and shared a piece of land near Luoyang to the two brothers. It seemed that they were not evenly divided, and they went to Zongzheng Temple. One of them measured the path in a Wednesday, and the other found Li Chunfeng, calculated it with the convention rate and secret rules, and came up with two different answers. The matter was quite a big deal, and both sides had their own reasons, and no one could convince anyone. At that time, he was ordered to deal with this matter, and he was not afraid of his highness laughing. I heard this and that, and I was full of my mind and didn't know how to make a decision. Later, the trouble was a little dissatisfied and it was all heard in the ears of Your Majesty. In anger, the land was taken back directly on the grounds of the brothers' disagreement. The matter was settled."

After a pause, he continued: "If I could make a decision at the beginning and find the right side, I would not have let Your Majesty come forward. Even if I understand this, I have been unable to let go of it. I want to ask for a correct answer. I heard that when the Shang King made the cylindrical car, he used numerical algorithms to calculate the size of the cylindrical car, but I don't know if I could calculate the size of the field."

Li Yuanai was already interested when he heard the words "Li Chunfeng", "Appointment" and "Mind Rule", and asked, "The divided field is not the four-sided field."

Changsun Chong seemed to remember it freshly and said directly: "Yes, I have a deep impression. Because it is located next to the river channel and is affected by the river channel, the land is not standardized, so it is difficult to judge with the naked eye."

Li Yuanai said: "Can there be detailed values?"

Changsun Chong shook his head and said, "I can't remember the specific values ​​very clearly, and I just remembered them temporarily. I have to go back and check the files."

Li Yuanai said: "Then let's take the result of Li Chunfeng's calculations, he is right."

Changsun Chong said: "Why? The algorithm recorded in the Pythagorean circle and square diagram of "Zhouteng Summary" has been based on this algorithm for hundreds of years."

Li Yuanai shook his head and said, "If you really want to ask me why, I can't say it. I can only say that there is no absolute correctness in the number of numerology in many cases, only more accurate algorithms. The diameter is one week, multiplied by three, and divided by four, the algorithm is the simplest and most practical. But if you want to say that the rate of quotient and secret law of Mr. Wenyuan. But if you really want to say that the rate of quotient and secret law is absolutely correct, this is also wrong. I have more accurate and fast algorithms here. Mathematics is a knowledge of continuous excellence, and there is no permanent correct answer, only relatively correct ones."

"In simple terms, the pi is the most suitable key value for calculating polygonal shapes such as circumference, circle area, and sphere volume... It is advanced than the diameter of three times, so it is more accurate."

Changsun Chong became more and more confused as he heard it, and said, "Why do most people in the world still calculate it by one week, rather than Mr. Wenyuan's rate of contingency and secret rules?"

Li Yuanai said: "It's very simple. Mr. Wenyuan's contingency and secret rules are too difficult, and most people cannot accept it at all. I remember Mr. Wenyuan's arithmetic scriptures that left behind in "Jiaoshu". It is not an exaggeration to say a mathematical work with the highest level of the Han, Wei, Sui and Tang dynasties. It's just a pity that the "Jiaoshu" is too profound, so I don't know what the official in charge of the imperial culture at that time was called. He couldn't understand it, and he abandoned it and ignored it, so that the pearl was covered with dust."

Changsun Chong was furious when he heard this and said, "This is so hateful. Thank you for your advice. Chong went back today and tried to find "The Art of Purification" and study it carefully."

Li Yuanai breathed a sigh of relief in her heart and finally fooled her.

Zu Chongzhi is the world's first terrifying existence to calculate the pi to the seventh decimal place. He is full of formulas and formulas. He can calculate the ratio rate and the secret law algorithm has a more correct answer. But if you really need to figure out why this formula is calculated like this, only the old genius knows.

Changsun Chong was thinking about "The Art of Purification" and was a little absent-minded.

Li Yuanai was also worried that his skills would be exposed and he was not good enough, so he did not dare to say much.

Changle Ben pulled Princess Chengyang to talk. Seeing that they had finished chatting, he came over and said, "When will Uncle Sixteenth plan to teach Changle to sketch?"

"This?" Li Yuanai hesitated and looked at Changsun and rushed towards him for help.

Changsun Chong, who was unbearable, said: "The princess loves painting and is very persistent. The King of Shang should agree, so as not to anger His Majesty."

Li Yuanai remembered the nature of Li Shimin's daughter slave, so she had to say, "Let's do this, I'll go to the princess's house to visit before Monday, Wednesday and Friday. Sketching is simple and easy to learn. You have a foundation in painting and you will be able to control it in no time."

Princess Changle shook her head and said, "How can this work? Changle was originally a junior, but now she is a student. How can she make her elders and gentlemen come to visit her? One, Three, Five, Changle will come to Da'an Palace for advice." As she said that, she also gave a blessing.

It happened that Li Shimin and Changsun Wuji returned from a walk.

Li Shimin announced the opening with a smile on his face.

Changsun Wuji had somehow expressed his embarrassment, but he soon disappeared, looking like a smiling Buddha.

The crowd had dinner in the Lizheng Hall.

Before leaving, Li Shimin specifically called Li Yuanai and said, "Sixteen, what are your plans next?"

Li Yuanai said in a daze: "What other plans do I have? Construction has begun in the suburbs, so I should focus on it."

"Okay!" Li Shimin nodded first, then a little solemn: "You are afraid that you don't know how much impact the trolley will have on you. In a few months, it will be the day of spring plowing and irrigation. When the trolley appears in the whole country, everyone will know your contribution. By then, you will not be like this in Chang'an, and you will be a dispensable existence. You are the object of praise from the world and also the existence that the world picks up. The higher the fame, the more burdened it will be. Now the emperor can protect you because even if you make a mistake, it will only have three or five people. Except for people like Wei Zheng, no one will make things difficult for the trolley for the trolley. It will be different from that time. The greater the impact, the greater the harm. I can protect you who are absurd, but I can't protect you who are famous."

Li Yuanai understood the meaning of the words and bowed, "I understand, thank you for your warning." He paused, and suddenly said, "I will change it again. In fact, I still missed the past days."

Li Shimin glared and said, "Get out!"

"My brother is leaving!" Li Yuanai laughed and trotted away.

Li Shimin shook his head helplessly and smiled, saying, "This kid..."

As Li Shimin said.

After the New Year, winter goes and spring comes.

As a farming nation, spring plowing is always the most important thing.

The seasons of the year are in spring, not false statements.

In order to encourage the people of the world to work hard, the emperor Li Shimin pretended to do it himself, after worshiping the God of Farming, he personally helped the plow and plow the fields to show his caution.

The tube truck has also officially begun to operate.

With sufficient water flow and located in the plains of Henan and Hebei, looking at the equipment that irrigates the river water into the fields without any operation, thousands of people who are preparing to open canals to divert water into the fields, they find that they can save this work and can directly prepare seedlings to plant seedlings.

On both sides of the Yangtze River, affected by the river embankment, people who could not easily obtain water found that with just a few cows, the water could actually jump over the river embankment ten feet and lead the water into the fields.

There are also places where water resources are scarce, and it is also found that their dry fields can be turned into paddy fields. In really bad places, they can also be irrigated accordingly, without having to walk dozens of miles to get water to irrigate.

Of course, the one who caused all this was the trolley, and the person who improved the trolley and invented the trolley was the younger brother of the Emperor of the Tang Dynasty, and the King of Shang Li Yuanai.

A trolley allows millions of people in the Tang Dynasty to enjoy convenience. The people are the simplest, so they naturally know how to be grateful.

And thousands of scholars in the world followed the trend of journalists in later generations.

He began to ignore the ridiculous things Li Yuanai did and praised him like a trend.

Although they look down on these strange and lewd skills in their hearts, there is something called the people's will.

Scholars know how to grasp this kind of thing best, and it is the same everywhere. If you don’t praise Li Yuanai when you meet others, you are embarrassed to say that you are a scholar.

As for Li Yuanai, he already knew that the wood was so beautiful that the forest wind would be destroyed, and Li Shimin warned him that he would ignore the things in the world and devote himself to the construction of the manor.

One year, two years...

The Tang Dynasty naturally destroyed Gaochang and beat the Western overlord, the Western Turks.

However, because of Hou Junji's arrogance, it also left hidden dangers for the Tang Dynasty.

The barrel-car effect has gradually passed...

The smoke of the Western Expedition has long subsided...
Chapter completed!