Who is Liu Hui?

That is one of the founders of classical Chinese mathematics!

Even the textbooks of later generations have devoted a lot of space to introducing this sage, and his book "Nine Chapters of Arithmetic Notes" has a lot of content, which has incomparable importance to the development of mathematics, and can be said to be a treasure of the Chinese nation!

Liu Hui's achievements alone are even more extraordinary, not to mention anything else, it is said that the Pythagorean theorem was verified by the method of complementing each other, the precise formula of the circle area was proved by circumcision, and the emblem rate of 3.1416 was obtained. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

In addition, there are many achievements, all of which are enough to be remembered by future generations.

Such a person, Chen Zhi has a deep memory in his previous life, so he thought that he would have a good life and cultivation in the future, but it is a pity that when he died in his previous life, Liu Hui was not born yet, and the world is not quiet, and there is no way to find his ancestors.

When Chen Zhi recovered in this life, Liu Hui had already become ancient, so that Chen Zhi sometimes remembered it, quite regrettable, in fact, if it wasn't for the urgency of time, there was something sudden, which made it difficult for Chen Zhi to take care of him, and when he went north to Qingzhou to study, he would go to Liu Hui's hometown to take a look.

But this wish has not been realized, I thought that the contact with Liu Hui would have to wait until later, but I didn't expect to suddenly hear the news about him here.

"Liu Hui's disciple? Last name Ma? The heir of the Mohist technique, who values arithmetic, also learned "Nine Hips"? Do you say ......"

It's just that I want to know about the talents in the creation of organs, looking for engineers and craftsmen, but I didn't expect it to involve a descendant of a mathematician, the uncle of the Gonghua, if you really learn Liu Hui's skills, not much, as long as three or four percent, it is worth recruiting, and it will be of immeasurable help to Chen Zhi's future plans, and it can even make Chen Zhi's group produce qualitative changes.

But whether this person can be contacted or co-opted is still unknown, and listening to the meaning of public loss, this person is also the Mo family, and there is a conflict with another faction of the Mo family, so the whole situation is even more complicated.

Chen Zhi thought about it, but the public lost his face and said: "In my father's generation, my parents died early, and it was difficult for my brothers to live, and finally they had to join his family, because they had a different surname from my uncle. ”

Chen Zhi nodded, he also guessed this, such a situation is not uncommon, although the current Xinhan is unified, but in fact it is only roughly peaceful, there are still many contradictions and problems internally, those poor families in order to survive, give the boy to others, or simply become rich, let the children change their surnames are not a few.

"What's your uncle's name?" After Chen Zhi asked, he said: "Since your family's surname is Ma, I don't know what the relationship is with that Ma Fufeng?" ”

When Gong Yihua heard this, the shame on his face was even greater, but he still said: "It is the ancestor, my uncle's name is Ma Si, nearly fifty years old, and he is the direct great-grandson of the ancestor. ”

It's really a descendant of Ma Fufeng!

When Chen Zhi heard this, he couldn't help sighing, and a little memory rose in his heart.

Ma Fufeng, whose name is Ma Jun, is a person who is known as Ma Fufeng, and his person is one of the most prestigious organ divisions in Chinese history.

Unlike Liu Hui, this Ma Jun Chen Zhi had seen it in his previous life, not only had he seen it, but the two also had a good friendship, when Chen Zhi was poor, he intersected with Ma Jun, and the two were friends in trouble, so that after Chen Zhi gained a firm foothold in Liu Bei's camp, he also took the initiative to write a letter to the past, hoping that Ma Jun could come over and reunite.

It's a pity that Ma Jun at that time had already joined Cao Cao's command, to be precise, he joined Cao Cao's group, I'm afraid Cao Cao didn't know that there was such a number one person in his army.

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

In the first battle of Guandu, after the victory of Cao Jun, Ma Jun also ushered in the peak of his life, becoming 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 personally went north, the second battle of Cao Yuan began as scheduled, and unlike history, this time Yuan Shao's army had obvious changes, and the final result was a draw between Cao Cao and Yuan Shao.

Cao Cao failed to intimidate the north with the aftermath of Guandu's victory, as in history, and then split the Yuan group, but he also achieved a great advantage and really gained a firm foothold.

In contrast, Yuan Shao failed to maintain his original prestige, failed to win the two wars, and lost his original advantages, but he did not fall apart as in the original history, the reason for this, in addition to the change in the situation of the Second World War, was that Chen Zhi took action, treated Yuan Shao's illness, did not let him die, and then let the Yuan family group kill each other.

Such a result laid the foundation for the division of the north and changed the course of Chinese history.

But compared with the changes in the entire historical process, the fate of individuals has also been affected by distance, the most representative of which is Chen Zhi's friend Ma Jun.

This ancient Chinese master of mechanism invention also tried to increase the victory rate of Cao's army by improving war equipment in the second Cao Yuan War, but in the end he failed to do so, and caused a turmoil.

After the war, Ma Jun's situation plummeted, and even because of personal grievances, he was targeted by others and fell into danger.

"This branch has also branched out now, but the children who have come out of the five suits so soon and are so downtrod that they can only enter the rich may be the descendants of the clansmen who went south with Ma Jun's unification."

When Ma Jun went south, in order to relieve his worries, Chen Zhi took his wife, children, and clansmen away, and after they settled in the south, these clansmen also branched out, and under the support of Chen Zhi, they slowly formed a clan.

It's just that Chen Zhi's sudden death made them lose their support, unlike Chen Zhi's emphasis on technology and mechanics, more people regard them as ordinary craftsmen, and their treatment has plummeted.

Chen Zhi could guess these changes when he thought about them slightly, and he couldn't help but sigh, but then he became puzzled again.

"Ma Jun at the beginning, although he had studied the knowledge of the Mo family, and he was also a little inclined to the thoughts of the Mo family, but he was not a believer of the Mo family, why did his descendants become the Mo family, could it be that the treatment of the later family was reduced, and the Mo family saw it, and then absorbed it?"

The real reason, Chen Zhi has no way of knowing, but the facts are in front of him, and he doesn't have to dwell on what happened in the past, these can be slowly understood in the future, and what is needed at the moment is a decision.

"Gonghua, I have a lot of respect for the Ling clan, and I respect you very much, since you are his descendant, then I will definitely not treat you badly, but there are rules for everything, you are a subordinate of the Chen family, you can't change it immediately, but as long as you do things faithfully in the future, I will definitely not treat you and your friends badly!"

This paragraph sounded similar to Chen Zhi's initial promise, but with his expression and solemn tone, it made Gong Yihua feel different, and he no longer refused, but glanced at Meng Li, and then nodded heavily, this heart has a little pride, that is proud of his ancestors, even the famous Taishou in front of him, as soon as he heard the name of the ancestor, he had such an attitude.

Although he is not a direct descendant of Ma Jun.

Chen Zhi followed and said: "In addition, your uncle, listening to your words, a talented person at that time, if he buried the countryside, it would be a pity, I hope you can write a letter, I will send someone to send it and invite him to go north." ”

"Okay." From Chen Zhi's attitude, he could also guess the purpose of the new master's family, but even if he wanted to take the opportunity to cling to it, he didn't dare to pack the ticket, so he cautiously added: "However, my uncle has a tough temperament and has a lot of prejudices against me, so my letter may not be able to invite him out." ”

"I know this, too, but it's man-made." Chen Zhi nodded, Chen Zhi did have a great interest in the descendant of Ma Jun, a descendant of Ma Jun, a student of Liu Hui, a great inventor, a great mathematician, and he was also a Mo, and he was inextricably linked with the Mojia organization.

When the public was introduced just now, it was also pointed out that he was proficient in "Zhou Ji" and "Nine Chapters", so "Nine Chapters of Arithmetic" needless to say, and the book "Zhou Ji" is also extraordinary, it is the oldest astronomical and mathematical work in China, and later generations will list it as one of the ten books of arithmetic.

Such a person, with mathematics as his root, and the art of organs, once he is co-opted, the benefits can be imagined.

Therefore, after the public loss and Meng Li retreated, Chen Zhi instructed Chen Duo: "When the public loss is finished writing the letter and sent to the south, I will arrange for a child of the Chen family in Pengcheng to visit in person with the book, and you will breathe a breath to the south first." ”

"No!" Chen Duo's heart sank, knowing that Chen Zhi really valued Na Ma Si very much, and his expression was a little solemn, this was the first task that Chen Zhi gave him, of course he couldn't be sloppy.

After Chen Duo left, today's business was over, but early the next morning, as soon as the sky was bright, Chen Zhi was woken up by Su Liao's visit.

Looking at the solemn look on the face of this staff member, he knew that it was not a trivial matter, and quickly asked Su Liao in the room.

"Liu Bao found me just now and revealed a piece of news, it is about the border army, it seems that Wang Quan, the Zhonglang general, intends to get involved in the family of Daijun, and intends to force the family to take refuge."

After listening to Su Liao's words, Chen Zhi shook his head and said: "This is not an accident, presumably Wu Jie has played a big role in it, but according to our original plan, the family is important, but there is no need to be too accommodating." ”

"That's the problem." Su Liao's expression was extremely solemn, "What Wang Quan wants to interfere with this time is not only the family, but also wants to get involved in the border trade, which will seriously affect the money and grain harvest of Daijun!" If you don't have money, you can't do anything! ”