People in Datang have been expelled from school

Chapter 1118 Like Li Zhi Living in Another World
After asking Shangguanyi these words, Wei Zheng held his forehead in distress.

I thought to myself that I shouldn't have asked these words.

In addition to being busy, in the free time in the evening, the matter of consulting Jingyang Tianmu's files could not be carried out at night, and everyone was tired all day.

Wei Zheng was walking in the village of Jingyang, and accidentally found a big pig's trotter on the table in a family's home.

I walked to a few more households and looked at the dishes of each household. Basically, every household has meat to eat.

Wei Zheng, who has lived a poor life since he was in Chang'an, is like a countryman who has never seen the world in Jingyang.

Walking on the small path in the village, Wei Zheng saw the slogan painted on the wall by Jing Yang, "Diligent and thrifty, labor to get rich."

Eye-catching eight characters.

Wei Zhengwen said to an old farmer who was about to go home: "Dare to ask why these eight characters are written on the wall."

The old farmer glanced at the direction Wei Zheng was pointing at and said: "It was all caused by Li Daxiong's son, who said he wanted everyone to save money. Up to now, our daily life in every household follows these eight characters, and the clothes are old. I dare not throw it away, and I dare not waste any food."

Wei Zheng stroked his beard and said, "It has been like this for so many years."

The old farmer gave Wei Zheng a strange look, "Are you an official?"

Wei Zheng nodded and said, "Yes." The old farmer said, "I'm here to check the land. Tell me about you officials, who don't want to be officials all day long, and you can't live with Jingyang."

After speaking, the old farmer left in disappointment, not wanting to talk to Wei Zheng anymore.

If you want to come to Jingyang to check the fields, it will naturally make the villagers of Jingyang hate it.

After walking around the village, Wei Zheng returned to his residence.

Another day later, Wei Zheng was still looking through Tian Mu's file in the Jingyang government office, and Li Yifu came here with two teenagers.

Wei Zheng looked up at the two teenagers, one of whom was the current King of Jin Li Zhi.

A group of household officials quickly saluted and said, "His Royal Highness King Jin."

Li Zhi quickly helped Wei Zheng who was saluting, and said to the officials, "You don't need to be too polite."

Looking at everyone, Li Zhi said: "I just came to see how everyone's investigation is going."

Wei Zheng said: "Don't worry, His Royal Highness King Jin, we will investigate fairly and strictly."

Faced with Wei Zheng's words, he was used to the relaxed atmosphere in Jingyang, and faced Wei Zheng who had been in Chang'an and the court for a long time.

This atmosphere made it difficult for Li Zhi to adapt for a while.

There are not so many rigid words and such etiquette in the academy.

Li Zhi looked at the crowd and said, "I'll bring someone to see how your investigation is going."

Wei Zheng quickly handed over a dossier, "This is what was investigated today."

Li Zhi picked up the file and looked at it, frowned and said, "Is this how you all settle accounts?"

Wei Zheng said, "It's always been calculated like this."

Li Zhichang sighed and said, "Don't you think it will be tiring to settle accounts like this?"

Wei Zheng looked at Li Zhi suspiciously.

Li Zhi sat down and picked up a pen while writing and said: "Everyone's algorithm is to add one account to the next account, and then add up to get the total."

Wei Zheng nodded and said, "That's right."

Li Zhi said: "This calculation is not only time-consuming, but also thankless. It's like eating something that can be eaten in one sitting but has to be taken apart to eat. It's a waste of time and it's easy to make mistakes."

Wei Zheng looked at Li Zhi and said, "Why did His Royal Highness King Jin say that?"

Li Zhi wrote in front of a group of household officials: "Let's assume that the total amount of grain produced in Jingyang in a year is A, then the amount per mu is B, and divided by the amount per mu, we can get If A is assumed, and then A is used to deduce the quantity of B, then everything can be calculated.”

What he said made everyone confused.

Wei Zheng said: "Your Highness King Wei, I... I don't understand."

After a while, Wei Zheng said these words with his old face suppressed.

Li Zhi also said: "When the unknown quantity and the known quantity are relatively clear, the desired quantity can be set as the unknown quantity."

Wei Zheng was stunned for a while and said: "Dare to ask His Royal Highness Wei Wang, what is unknown."

Li Zhi scratched his head in distress.

Di Renjie on the side wrote down a simple algebraic equation and said: "You should check the numbers in this equation with the accounts you calculated to see if there is any mistake."

A group of officials are still confused.

The algebraic equation is a very simple equation in the mathematics of Jingyang Academy, and children in their teens can calculate it.

But teaching these people in front of me is particularly difficult.

It took a while for the household officials to understand.

After they were able to use this equation, they found that the calculation was not bad at all, and it was even more accurate.

Everyone seemed to have discovered a new continent.

Wei Zheng also used this equation to calculate it himself, and found that it was indeed the same as what he calculated before, even if there was a discrepancy, it was only a small difference.

Looking up at Li Zhi, Wei Zheng said, "Why?"

Li Zhi said: "It's actually very simple. It's like counting logs. It's very laborious to count one by one, but it's much easier to count by adding the height and width together. It's a change in thinking. When you count from front to back When you have no clue, try to count from the end to the front, so that you will be integrated."

Wei Zheng said: "How did His Highness King Wei learn this?"

Li Zhi said: "This, it's just numerology, and the children in Jingyang know it."

"Everything... knows it." Wei Zheng tugged at his beard and said, "Really?"

Li Zhi said: "Some children learn more slowly, maybe they don't know it yet."

With Li Zhi's formula, the speed of checking the acres of fields by the officials of the Ministry of household affairs is more than several times faster.

Li Zhi said again: "If there is anything you can't figure out, you can come to the academy to find us."

An official from the household department came to Li Zhi as if he had found a life-saving straw and said, "His Royal Highness Wei Wang please help us."

Li Zhi said in surprise, "Why are you so excited?"

The official of the Ministry of Household Affairs said bitterly: "We are measuring the fields. These days, we are running out of luck. Is there an easier way?"

Li Zhi glanced at the one-foot-long measuring ruler in their hands and said, "Follow me."

Wei Zheng watched Li Zhi take the people away, and his heart was already turbulent. He had an inexplicable feeling that Li Zhi had been in Jingyang for so many years, and he had seen Li Zhi when he was a child in the palace. Now it seems that Li Zhi seems to have changed. generally.

The formula for household officials to check the acres of land was quickly sent to Chang'an, and it was sent to Li Shimin.

Li Shimin asked Fang Xuanling, "Can this formula really check the acres of land?"

Fang Xuanling said: "It can be used."

Li Shimin whispered: "Then can it be used in other places?"

Fang Xuanling knew what Li Shimin was talking about. If there was this formula, many accounts that were not on the surface could be calculated at a glance.

But this kind of thing can't be counted. Datang's land is a bad debt, and no one dares to mess with it.

(End of this chapter)