Who is Liu Hui?

That is one of the founders of Chinese classical mathematics!

Even textbooks from later generations spent a considerable amount of time introducing this sage. His work "Nine Chapters of Arithmetic Notes" has many contents, which are of incomparable importance to the development of mathematics. It can be said to be a treasure of the Chinese nation!

Just talking about Liu Hui's achievements, it is even more extraordinary. Not to mention anything else, it is said that the Pythagorean theorem was verified by the method of complementing each other, and the precise formula of the area of ​​the circle was proved by the technique of cutting the circle, and the emblem rate of 3.1416 was obtained.

In addition, there are many achievements that are enough to be remembered by future generations.

Chen Zhi remembered such a person deeply in his previous life and thought that he would cultivate himself well in the future. Unfortunately, when he died in his previous life, Liu Hui was not born yet, and the world was in chaos, so he could not find his ancestors.

By the time Chen Zhi recovered in this life, Liu Hui had already passed away, so it was so regretful that Chen Zhi sometimes remembered it. In fact, if it weren't for the urgent time and something suddenly made Chen Zhi difficult to take care of. When he went north to study in Qingzhou, he would have gone to Liu Hui's hometown to take a look.

But this wish has never been realized. I thought that my contact with Liu Hui would have to wait until later, but I didn't expect that I suddenly heard about him here.

"Liu Hui's disciple, surnamed Ma, is the descendant of the Mohist arts, values ​​mathematics and also learns "Nine-Bene"? Could it be..."

But I wanted to understand the talents in the creation of the agency. I was looking for engineers and craftsmen. Unexpectedly, I involved a successor of a mathematician, the clan uncle of Gongshuhua. If I really learned Liu Hui's skills, it would not be much, only 30% or 40%, it would be worth recruiting. It would have immeasurable help to Chen Zhi's future plans, and it could even cause qualitative changes in the group under Chen Zhi.

However, it is still unknown whether this person can be contacted and whether he can win over it. Moreover, according to Gongshuhua, this person is also a Mohist family and has a conflict with another faction of the Mohist family. In this way, the whole situation becomes more complicated.

Chen Zhi thought about this, but Gongshuhua looked embarrassed and said, "My father's generation, his parents died early, and it was difficult for his brothers to live. In the end, he had to marry into his family, so he was different from his uncle's surname."

Chen Zhi nodded, and he also guessed this. This situation is not uncommon. Although the current new Han Dynasty is unified, it is actually just roughly peaceful. There are still many internal contradictions and problems. In order to survive, those poor families have sent boys to others, or simply married into their families, and asked their children to change their surnames.

"What's your uncle's name?" Chen Zhi asked, and then said, "Since your family's surname is Ma, I don't know what it has to do with that Ma Fufeng?"

When Gongshuhua heard this, his shame on his face was even more serious, but he still said, "It is the ancestor of the family. My uncle is named Ma Si. He is nearly fifty years old and is the direct great-grandson of his ancestor."

He is actually a descendant of Ma Fufeng!

When Chen Zhi heard this, he couldn't help but sigh, and a little recollection arose in his heart.

Ma Fufeng, whose name is Ma Jun, is a man of Fufeng. He is called Ma Fufeng. He is one of the most famous institutional teachers in Chinese history.

Unlike Liu Hui, this Ma Jun and Chen Zhi had seen him in his previous life. Not only did he meet him, but he also had a good relationship. When Chen Zhi was in poverty, he met Ma Jun. The two were considered to be in trouble. So much so that after Chen Zhi gained a foothold in Liu Bei's camp, he took the initiative to write a letter, hoping that Ma Jun would come and reunite.

It’s a pity that Ma Jun had joined Cao Cao at that time. To be precise, he joined Cao Cao’s group. I’m afraid Cao Cao didn’t know that there was such a person in his army.

It was not until the Battle of Guandu that Ma Jun improved the catapult car and created a rotating stone car, leading the Cao army to gain an advantage on the battlefield, which was valued by Cao Cao.

After the first battle of Guandu, after the victory of Cao's army, Ma Jun also ushered in the peak of his life, became a celebrity in front of Cao Cao, and his status in the entire Cao army was improved.

But the good times did not last long. With the intervention of Liu Bei's forces in the south, especially Chen Zhi went north personally, the second battle between Cao and Yuan began as scheduled. Unlike in history, the Yuan Shao army had obvious changes this time, and the final result was that Cao Cao and Yuan Shao were tied.

Cao Cao failed to shock the north with the remaining power of Guandu victory as in history, and then split the Yuan group, but he also gained great advantages and truly gained a firm foothold.

In comparison, Yuan Shao failed to maintain his original power, failed to win in both wars, and lost his original advantage, but did not fall apart as in history. The reason for this, besides the change in the situation in World War II, was that Chen Zhi took action to treat Yuan Shao's disease, did not let him die, and then the Yuan family group was killed.

Such a result laid the foundation for the two divisions in the north and changed the course of Chinese history.

But compared with the changes in the entire historical process, personal destiny is also affected by distance. The most representative of it is Chen Zhi's friend Ma Jun.

This ancient Chinese inventor of the mechanism also tried to improve war equipment to increase the winning rate of the Cao army by improving war equipment, but in the end it failed to do so, and a storm caused.

After the war, Ma Jun's situation plummeted, and even was targeted by others because of personal grudges. After Chen Zhi learned about it, he took the initiative to lend a helping hand and finally brought Ma Jun back to the new Han in the south. The Ma family settled in the south, leaving one.

"Is this branch now scattered? But the five-season out of the country were released so quickly that the children who could only marry into their families may be descendants of the tribe who unified the south with Ma Jun."

When Ma Jun went south, in order to relieve his worries, Chen Zhi took away his wife, children and tribe members. After they settled in the south, these tribe members also grew up and slowly formed a clan under the protection of Chen Zhi.

However, Chen Zhi's sudden death made them lose their support. Unlike Chen Zhi's emphasis on technology and institutional science, more people regard them as ordinary craftsmen and their treatment plummeted.

Chen Zhi could guess these changes with a slight thought, and he couldn't help but sigh, but he immediately became confused.

"Although Ma Jun had studied the Mohist knowledge at the beginning and was somewhat inclined to the thoughts of the Mohist, he was not a believer of the Mohist. Why did his descendants become the Mohist? Could it be that the treatment of the later families was reduced, and they were seen by the Mohist, and then absorbed it?"

Chen Zhi had no way to know the real reason, but the facts were right in front of him, so he didn't have to worry about what happened in the past. You can slowly understand these things in the future. What you need now is decision.

"I admire and respect the Ling clan very much. Since you are his descendant, I will definitely not treat you badly. But everything has rules. You are a subordinate of the Chen family and cannot be changed immediately. But as long as you do your work faithfully in the future, I will never treat you and your friends unfairly!"

This passage sounded similar to Chen Zhi's initial promise, but combined with his expression and solemn tone, Gongshu Hua felt a different feeling. He no longer refused, but looked at Meng Li and then focused his attention. He felt a little more proud in his heart, which was to be proud of his ancestors. Even the famous prefect in front of him had the same attitude when he heard about the name of his ancestors.

Although he is not considered a direct descendant of Ma Jun.

Chen Zhi then said, "In addition, your uncle, if the talented man at that time was buried in the countryside, it would be a pity. I hope you can write a letter and I will send someone to invite him to go north."

"Okay." These words were not unexpected to Gongshuhua. He could also guess the purpose of this new master from Chen Zhi's attitude, but even if he wanted to take the opportunity to cling to him, Gongshuhua did not dare to make a promise, so he added cautiously: "However, my uncle is a tough person and has many prejudices against me. My letter may not be able to invite him out."

"I know these, but it's up to people." Chen Zhi nodded. Chen Zhi was indeed very interested in the descendant of Ma Jun. Ma Jun's descendant, Liu Hui's student, a great inventor, a great mathematician, himself a Mohist, and has close ties with the Mohist organization.

When Gongshuhua introduced it just now, he also pointed out that he was proficient in "Zhou Ren" and "Nine Chapters", so there is no need to say much about "Nine Chapters of Arithmetic", and the book "Zhou Ren" is also extraordinary. It is the oldest astronomy and mathematics work in China, and later generations listed it as one of the ten books on arithmetic scriptures.

Such a person takes mathematics as the root and is also knowledgeable about the art of mechanism. Once he wins over, the benefits can be imagined.

So after Gongshuhua and Meng Li retreated, Chen Zhi instructed Chen Duo: "When Gongshuhua has written a letter and sent it to the south, I will arrange for a child of the Chen family in Pengcheng to visit him with the letter. You can breathe the south first."

"No!" Chen Duo's heart was shaking. He knew that Chen Zhi really valued Ma Si very much, and his expression was a little serious. This was the first task assigned to him by Chen Zhi, so of course he could not be careless.

After Chen Duo left, today's affairs were over, but early the next morning, just as the sky was dawn, Chen Zhi was woken up by Su Liao's visit.

Looking at the solemn expression on the aide's face, he knew it was not a trivial matter, so he quickly asked Su Liao in the room.

"Liu Bao just found me and revealed a piece of information about the border army. It seems that the Central Army General Wang Quan is interested in getting involved in the aristocratic family in the county and intends to force the aristocratic family to surrender."

After hearing Su Liao's words, Chen Zhi shook his head and said, "This is not an accident. I believe Wu Jie has played a significant role in it, but according to our original plan, the aristocratic family is important, but it does not need to be too accommodating."

"This is the problem." Su Liao's expression was particularly solemn. "This time, what Wang Quan wanted to interfere is not only the aristocratic family, but also the border trade. This will seriously affect the money and grain harvest in Dai County! If there is no money and grain, nothing can be done!"
Chapter completed!