Chapter 294 Three-Dimensional Equation

Whether a product is widely used depends mainly on how much it is used by ordinary people.

Population is also a commodity, and Xia slaves have existed in the lives of the Northern Han people for hundreds of years. They are accustomed to participating in wars and plundering people to work for themselves. Even during the most prosperous period of Daxia, even though the Northern Han Dynasty lost one-third of its population and one-fifth of its land, they still stubbornly maintained their own living habits-regardless of whether they were civilized or not.

Under such circumstances, An Xiaofeng decided to take away 50,000 households from nobles and commoners, which immediately caused a huge uproar. Especially as far as the local nobles are concerned, they don't care whether Hanjing is destroyed or whether Anjia is destroyed. Their own people and animals are the foundation of their family.

However, as Chief Situ, An Xiaofeng had already expected this situation, so after offering compensation conditions, he sent hundreds of thousands of troops to cover the grasslands and farmland north of the Han River. Scanned again.

In addition, the An family also provided a population of 10,000 households, and the remaining 40,000 households were equally divided among the nobles. The civilians would not risk their lives to resist the army without being affected too much, making their The recruitment of Shan slaves went quite smoothly.

The dark airship only waited for two days at Luoshanguan, which was full of ruins, before seeing the first group of "Xia slaves" with their families.

At the temporary ferry, Cheng Jinzhou saw an unforgettable crowd.

The husband pulled his wife, who held the child in her arms, and the old man, who was hunched over, dragged his suitcase and tried his best to follow the team. The long queue, long and lonely.

Facing the unknown and preparing to return to their homeland without a home, people walked in silence. Life in Northern Han was not good, but it was a familiar life after all. When I returned to Daxia, I didn't know how life would continue.

Cheng Jinzhou has seen crowds of people traveling and attending various events. In terms of the number of people and the degree of crowding, it may be even greater than the situation before us. The difference is that the former is happy and complaining, while the latter is sad and fearful.

"This is 4,280 households. Please count them." The person in charge of the transfer in the Northern Han Dynasty was also a low-level official, who happened to be the diplomatic equivalent of the officials in De'an.

Today's De'an yamen are all arrogant officials, such as the officials of the Ministry of Punishment. They hold their heads high and receive the hand, and then order the white officials below: "Go and pick up the people on the boat, and then select one-tenth of the households to ask if there are any shortages." population situation.”

Some families have more households, and some have fewer households. Cheng Jinzhou doesn't care how many large families he can get, but the basic family unit cannot be destroyed, otherwise as tenants, their production efficiency will be greatly reduced.

The huge transport ship, like banknotes sweeping through the general public, swallowed up every household. It kept swallowing and swallowing, as if there was no limit, as if it had the appetite of bankers and countries.

"Go and do comfort work." Cheng Jinzhou said to Xu Guinian, but in fact, he didn't know how to comfort those Sheng Dou people. In the 21st century, he was just a lucky Sheng Dou people.

Fortunately, Xu Guinian can be regarded as a division-level cadre and has experience in managing tens of thousands of residents in the entire county. He promised with an old chest: "Don't worry, County Magistrate, I will arrange them all properly."

"I have two requirements. The first is to make them happy to farm, and the second is to make their lives as comfortable as possible. If you are short of money or food, you come to me for it. There is also a bottom line, from the old man at the top to the baby at the bottom , If it's not personal, although I know that people may inevitably die, whenever there is a death on a ship, the ship owner will be investigated, and the officials above will be investigated, so you have to be careful, understand?" Cheng Jinzhou is not a pedantic person. , in an era when humans can solve the problem of "when it rains, the mother will marry someone", the mining industry still clearly lists such cruel figures as the death rate, let alone in such a large-scale transportation process.

In order to minimize the waiting time of the Star Warlocks, and the transport ship is not a suitable passenger ship, during the 3-day voyage, the conditions on the ship will not be much better than the smuggling ship of the snake head. The only thing that can be done is, They just put the old, weak and sick on the deck and provide them with enough food and water.

In fact, adequate amounts of food and water have been put to the test. De'an is a city that is not prepared for war. They never thought that one day they would have to deal with 50,000 households and at least 200,000 people eating, drinking and eating. Fortunately, it only lasted three days.

Xu Guinian agreed to whatever Cheng Jinzhou said. He was already somewhat familiar with the new county magistrate, so he naturally knew how to speak according to his preferences.

Hui Minren watched with cold eyes, but his view of Cheng Jinzhou changed somewhat.

The ships were divided into four teams and took away about 5,000 households almost every day. The work was completed in seven days. During this period, Warlock Li Xianfengxing even went to Hanking for a feast, killed about a sheep, and returned to the airship with a whole table of banquets.

Although the Star Warlocks of the Northern Han Dynasty noticed the movements of Star Warlock Li Xianfeng, they were only nervous for a long time, and then watched her leave after eating and drinking.

On the last day, half of the fleet loaded 5,000 tons of iron ore and slowly sailed to De'an Port. The owners and sailors were happy, and it felt like a smooth end to a long trip.

Song Heng and his team of government officials were a little unhappy, because in the past, although De'an only had awning boats for transportation, the county had the right to levy taxes from the boat owners at will, which made him feel quite powerful. right. With the expansion of De'an Wharf, especially with so many people transporting people this time, in order to attract ship owners from all over the country, Cheng Jinzhou issued an order strictly prohibiting harassment. He even ordered the county treasury to pay full payment to all ships carrying out shipping. shipping fee.

Under such circumstances, Song Heng, who had always been regarded as an ancestor, was really in vain. If you don't dare to accept your filial piety, what's the point of the bumps in the boat.

On the contrary, Cheng Jinzhou was beaming with joy in the sky. He directly used the communication star array to let Tang Zheng and Chen Jie, who had just returned from the capital, start a new round of planting. 200,000 acres of dry land and irrigated land are planted with real rice, leaving 3,000 acres of slope land planted with pearl rice. Compared with the fertile farmland in the capital, the standard of De'an is much lower.

In fact, Cheng Jinzhou originally wanted to buy land at a low price from the landowners in De'an, but after calculation, even in the cheapest case, 200,000 acres of land would cost him millions of taels of silver, emptying the domain. It is impossible to save the library, and his personal property is not enough.

In view of this, he simply occupied all the official land in the five nearby counties, including Nanling. Together with the military farmland of the local Xiang army, he finally collected 200,000 acres of land. As for how the leaders of the five counties, one county, and the two Xiang armies reported to Xia Jing, Cheng Jinzhou didn't care at all.

The situation in the Northern Han Dynasty, for Emperor Lizong, meant more warning than the pleasure of revenge.

While Cheng Jinzhou was using the communication star array, Kong Wei, Qin Yu and Hui Minren communicated with each other with their eyes. After he finished what he was doing, Kong Wei, who was relatively neutral, stood up and said: "Mr. Cheng, how many people are there?" I would like you to solve the problem."

"Oh, you guys want to test me." Cheng Jinzhou said jokingly, but he didn't know the point.

Kong Wei smiled and wrote an equation on the wall.

"A linear equation of two variables?" Cheng Jinzhou shrugged in confusion and asked.

"We want to see your ideas for solving the problem first before continuing." Kong Wei explained without blushing or heartbeat.

Cheng Jinzhou picked up a pen without knowing why and took 10 seconds to solve this difficult question for the first grade of junior high school. Most of the time was spent writing.

The three level four star warlocks looked at each other without comment.

Xiao Cheng didn’t know that there was a small trap in the question Kong Wei asked just now. Only a teacher who knows how to match the question can solve it. The so-called matching method is to make a linear equation of two variables become the product of two algebras. It was not mysterious in Europe in the 17th century, nor was it mysterious in Xingzhou and Daxia, but everyone used different times and methods.

What Kong Wei then wrote on the blackboard was a linear equation in three variables.

Although it is only from two yuan to three yuan, the difficulty of the solution is no less than that from a two-star warlock to a three-star warlock, or from an elementary school question to a high school question. In fact, in the 17th century, high school students could not solve the three-variable equation. At one time, some scientists claimed that the roots of the three-variable equation were unsolvable.

Later, the method of proving the solution of the three-dimensional equation even involved geometric proofs. In addition, negative numbers and complex numbers had not yet been accepted by the world, and it was simply a mess.

Of course, the level of star warlocks in Xingzhou and Daxia had already passed that difficult period, so Cheng Jinzhou easily wrote the solution to the three-dimensional linear equation without hesitation or hesitation.

Kong Wei looked at Hui Minren and wrote out a very general linear equation in three variables.

Mathematics is a strange subject in which students focus on particularities. Geometry considers circles first, then squares. To be precise, they are the most special shapes in nature. There is a special way in probability called average. In algebra, more general equations often mean more complexity and trouble.

At this time, if Cheng Jinzhou still doesn't understand that they are testing him, he is really stupid.

But he still couldn't figure out what the three fourth-level star warlocks wanted to test. After a slight hesitation, he wrote the answer on it.

Kong Wei glanced at the note in his hand and said in a relaxed voice: "Mr. Cheng, for the convenience of recording, I will just write the questions here. How about you answer them?"

"Answer these?"

"That's right." Kong Wei couldn't help but start writing.

The two astromancers sat up straight in concern.

As early as 10 years ago, Xingzhou had a systematic understanding of three-dimensional equations, but in terms of specific problem-solving speed, it was always too slow, because their solution methods would have various complications and troubles. .

But whether they are mathematicians or astrologers, they all need simpler solutions to three-dimensional equations. The demand has spawned many methods. In general, the better the method, the faster it will be.

It is precisely because of the rapid development of equation solving in recent years that Star Warlocks want to know how much avant-garde knowledge Shengya has mastered, and it can be regarded as a confirmation of Cheng Jinzhou's identity.

They would never have imagined that someone would come here with a more advanced solution than Xingzhou.

The quill makes a gentle brushing sound on the whiteboard. The three astromancers felt as if they were signing a credit card.

…

Beyond word count: Tomorrow’s chapter is uncertain.

…