Bad people in Qin Dynasty

Chapter 13 I'm Not Interested in Machinations
"Go and see what that kid can teach the proton of Qin."

Calculating the time, Six Fingers Heixia walked towards someone's courtyard, and Mo Ban followed closely behind.

Although there is a curfew here in the capital, it is nothing to them as warriors, not to mention that the courtyard chosen by the kid is still relatively remote, and the patrol soldiers in the city seldom go there.

Walking along that passage, they soon reached a passage with many corners at the end, hiding behind a corner, and the two listened quietly.

"This new type of numbers created by Master is really simple and easy to write."

Ying Zheng, who has become proficient in writing Tian's numbers, couldn't help but admired that this way of writing numbers is indeed much simpler than those words, and can basically be written in one stroke.

"This way of writing numbers is more suitable for calculations. It is best to use text-type numbers for daily records, because text-type numbers are complicated and difficult to modify. If you change to this new type of number, you can change it by just adding a stroke."

Tian Hao told Ying Zheng about the advantages and disadvantages of Tian's numbers. As for the so-called Tian's numbers, they are naturally Arabic numerals, but Arabic numerals have not yet appeared at this time. He gave priority to registering the copyright, which belongs to someone else Tian.

"Why should I learn this?"

Zhao Ji, who was practicing writing Tian's numbers, muttered. She thought she only needed to accompany her son, but unexpectedly she was dragged to study together. She didn't agree, and the little villain made a fierce face.

It's too domineering if you don't learn.

"Mom, the only people my child can trust now and in the future are you and the teacher. I can only ask you to help me with many things."

Ying Zheng comforted him by saying that he could guess the master's intention and wanted his mother to be his helper to fight against Na Lu Buwei and many dangers together.

"What's the use of learning this? Shouldn't you learn some political and political tactics?"

Zhao Ji felt a little better, but still had doubts.

"Of course it is useful. For example, when a disaster occurs in a certain place, how much money is needed and how much food is needed for disaster relief? These all need to be calculated based on the population of the disaster-stricken area, as well as the distribution of officials' salaries, the settlement of soldiers' salaries, food and grass, etc., all need to be used. to mathematical calculations.

You don't need to know too much, you just need to learn to use it simply, at least you can't be fooled by the artificial and fake accounts under your hands.

As for the politics and political tactics you mentioned, I'm not good at it, and I'm not interested in it. When the government returns to Qin in the future, the Qin clan will send someone to teach it, and they will be more professional. "

Tian Hao simply explained that he didn't fool anyone this time, and he was telling the truth.

The previous deceit was to take advantage of the traversers. If he really wanted to compete for power and tactics, he would definitely be played to death by those big shots.

He never thought about tying his head to his waistband and going into a head-on battle of wits with Lu Buwei. If he really wanted to make someone anxious, what could he do to resist sending a trap killer to assassinate him?

It would be better for the old guy to leave it to Brother Zheng to clean up in the future, he just needs to hide in the dark and enjoy the glory and wealth.

It's just that, let alone Liuzhi Heixia and Mo Ban hiding around the corner, even Zhao Ji and Ying Zheng don't believe it.

You're not good at tricks and tricks?Not interested yet.

A ruthless person like Lu Buwei is just a pawn in front of you, and the whole world is just a game of chess to you. Is there anyone in the world who is better at planning than you?

"Don't believe me, I can only come up with a general direction. I don't have much experience in details, and I can't compare to those professional ones."

Seeing that the two didn't believe it, especially Zhao Ji's coquettish white eyes, Tian Hao could only further explain his confession.

Installing coins also depends on the time and things. Now if you can guarantee that you can play Lu Buwei to death with your own hands, what if Ying Zheng pushes himself to the bright side in the future to wrestle with Lu Buwei hard?

To put it simply, let him use his imagination and act with hindsight. If he really wants to fight with those big guys, his true colors will be revealed.

In this regard, you must have self-knowledge, lest you play yourself to death.

These words made the four of them think about it, and realized that it should be the truth. After all, given their age, even if they had a unique vision and outstanding wisdom, there were some things that they had not experienced personally, so it was impossible to understand too much.

"After getting familiar with the writing method of Tian's numbers, the next step is the basic operations of addition, subtraction, multiplication and division, which are the foundation of mathematics."

Tian Hao ended the previous topic and turned back to mathematics teaching.

He is indeed not a qualified teacher. He was not a teacher in his previous life. He has no experience in teaching people. He has even forgotten a lot of textbook contents. However, he will not forget some simple things, such as addition, subtraction, multiplication and division in mathematics. This is an imprint. into the mind.

He only needs to teach Ying Zheng the content at the elementary and junior high school levels, complete his nine years of compulsory education, and then let Ying Zheng find a way to understand it on his own.

"Say!"

Seeing Ying Zheng raised his hand suddenly, Tian Hao signaled him to speak.

"Addition and subtraction are understandable, but what is multiplication and division?"

Expressing his doubts, Ying Zheng did not understand what multiplication and division meant.

Zhao Ji looked at someone eagerly, equally curious about it.

She comes from a wealthy family. Although she is a woman, she has received education, but she is still not familiar with this kind of mathematical operations. In the past, she only knew addition and subtraction, but now she has multiplication and division. So what are they?
Not only were Ying Zheng, Zhao Ji, mother and son curious, but the Six-fingered Black Man hiding in the corner and Mo Ban were also puzzled. Especially Mo Ban felt like a cat scratching his head and wanted to rush out immediately to listen to the lecture and watch.

“Addition is superposition, one plus two is equal to three, one hundred plus two hundred is equal to three hundred, etc. Subtraction is subtraction, three minus two is equal to one, ten thousand minus five hundred is equal to nine thousand five hundred.

Both are simple, while multiplication and division are a bit more advanced and difficult.

Among them, multiplication can be regarded as the sublimation of addition. For example, the addition of three fives is five plus five plus five according to addition, but it can be changed to three times five when replaced by multiplication, which means that three fives are added, and the result is fifteen.

Division is the opposite of multiplication, just like the yin and yang of heaven and earth, one positive and one negative, dividing fifteen by three means dividing fifteen into three, one of which is five.

For example, there is four catties of clear water in my kettle, and I want to share it among five people fairly. How much can each person drink?
This has to be calculated by division, four divided by five equals [-], which is [-]% of a catty of water..."

As Tian Hao spoke, he took out a charcoal pen specially made from charcoal and wrote the multiplication table on the flat earth wall.

"So that's the one!"

Moban, who was hiding around the corner, suddenly realized that there were similar ideas and usages in their Mohist mechanism, but they were not perfect, and it was troublesome to calculate, not as complete and concise as the kid said now.

Then he became interested in the multiplication table and listened silently to memorize it. The more he listened, the more excited he became. This can be directly applied to the learning and creation of machine skills. Maybe it can also push the Mohist machine skills that they have not improved for a long time to a higher level. .

Ying Zheng was also very excited after hearing this. He could understand the importance of multiplication and division. For example, when calculating soldiers' military pay, when there is no war, the lower-level soldiers can receive the same military pay. It is too troublesome to use addition to calculate. At this time, it can be replaced Multiplication can be calculated in one go.

He had heard of a similar concept before, and it was said that there was something called counting chips that could assist calculations, but it was still very troublesome, obviously not as systematic as Master's, and simple and easy to understand.

Some numerical calculations can be calculated with just a pen, and some can even be calculated simply in the mind.

Ying Zheng and the other four were happy, and Tian Hao was equally happy, because teaching these things had changed them a lot, and he had gained that mysterious power again.

And teaching these things is much easier than racking your brains to think about those lines before, just carry it directly.

(End of this chapter)