After reading the book, the address of [Wanbenshen Station]: Avoid the pain of chasing books!

Li Dongsheng asked, "Do you use a calculation chip?" ”

The official didn't expect someone around him to speak, his hand shook, and then the whole shape was messed up. He looked up at Li Dongsheng and wanted to cry without tears: "Yes, what's wrong?" ”

"Nothing, haven't seen it, so ask."

Damn, can you scare me if you haven't seen it? I've been thinking about it for a long time, and now I'm going to start all over again. The official glared at Li Dongsheng and went to play with his calculations again.

No one paid attention to him, they were all settling accounts. Li Dongsheng had no choice but to force himself to continue reading. After reading it for a while, I think this is a running account, I still don't remember clearly, if it is all in the account according to this way, then I don't know the day when the account is calculated. Not to mention the final statistics.

He stood up and walked to the platform: "Lord Lu." ”

"What happened to Li joining the army?" Lu Song was also bowing his head to settle the accounts, and he didn't raise his head.

"Xiaguan looked at this account and felt that it was a little messy, there is a better way to keep accounts, which can be calculated faster."

"Oh, is that true?" Lu Song put down the pen in his hand, his eyes widened. "There is no joke in the army, and now the marshal is in a hurry to get the accounts."

"Uh... Xia Guan wants to try it, you count yours, count you, I'll summarize the statistics, okay? Li Dongsheng won't fall for him, now Li Jing is in a hurry to ask for this account, he patted his chest and said I will do the accounting, in case that bastard undercounts or misses something, wouldn't he put the shit basin on his head.

Lu Song stared at Li Dongsheng for a while, seeing that he was young and knew how to move as an official? I just wanted to throw everything to him, but anyway, it was introduced by the handsome, there is a backstage, and it will be okay to drag it out for a day or two when the time comes, but I didn't expect it to be gently pushed out.

"Okay, I'll give you a chance. Tomorrow we will give you all the calculations, and you will help us summarize them. "Introduced by the handsome, you can't offend too much, and there's nothing great about trying.

It was getting late, Li Dongsheng came to the outside of the camp, which was full of migrant workers, a group in the east and a group in the west, who dug a hole in the ground and then spread grass to sleep inside. It's December, and it's cold, but they seem to be used to it.

Li Dongsheng went around the village and found the local Lizheng. Ask if there are any carpenters in the village. Li Zheng saw an officer coming to him, and he panicked like something. Hearing that he was looking for a carpenter, he breathed a sigh of relief and personally brought Li Dongsheng over: "This is Liu Carpenter from our village, his craftsmanship is good, and the furniture of the surrounding people is all made by him." ”

Li Dongsheng looked at his home, four words: the family is surrounded by four walls. Nothing. Carpenter Liu was lying on the ground, yes, lying on the ground, not even a bed. Seeing that Li Zheng brought an officer over, he was so frightened that he crawled up: "I don't know what Li Zheng is looking for me with this military brother?" ”

Li Dongsheng knew that his clothes were under pressure on people, and the countrymen had basically never seen officials, so it was normal to panic: "I'll ask you to make something." Do you see what you can do about this? ”

Carpenter Liu took a piece of paper handed over by Li Dongsheng, and he couldn't see clearly in the black rumbling in the room, and when he came out of the place that looked like a door, he looked at it and said, "This can be done, when will it be done?" ”

"Do it now, I'll come back tomorrow and get it." After saying that, he threw down a few copper coins and left, not because he didn't want to give more, but because he was afraid of giving too much.

At dawn the next day, Li Dongsheng came to Carpenter Liu's house, and Carpenter Liu's eyes were red and polishing. Seeing Li Dongsheng coming, he handed over the things as if inviting merit: "My lord, the things are ready." ”

Li Dongsheng took it and carefully looked at this epoch-making thing - abacus. It is very clear that abacus evolved from calculation. Lao Tzu mentioned: "Those who are good at planning do not need to plan", which shows that planning was already more common at this time, so we say that planning was completed in the Spring and Autumn Period and the Warring States Period. The abacus generally believes that the invention was made in the Yuan Dynasty and was not used on a large scale until the Ming Dynasty.

The direct result of the Ming Dynasty's improvement of the mechanized algorithm of abacus was to make mathematics unprecedentedly popular among the masses. Using the abacus mechanized algorithm, reciting songs, and plucking beads, even if you don't understand the principle, you can master the bead algorithm. Regardless of public schools, private schools, tutors, as well as business and shop owners, they can teach bead algorithms, even children can learn and master them. This bead algorithm continued until the 50s of the 0th century, when China used an abacus to calculate the data of the atomic bomb in difficult times. In some places even to the present day. It is for this reason that the abacus was able to spread so quickly that it spread overseas.

This abacus is made of pine wood, and because it is in a hurry, the workmanship is relatively rough. However, the beads are polished and rounded, without burrs, Li Dongsheng received it in his hand, crackled for a while, his heart was happy, and he was generous: "Not bad." I'll give you another fifty wen. ”

"Thank you, thank you, thank you." Carpenter Liu didn't expect to be able to take so much money at all, and he almost fainted with joy, this money is worth a few months of earnings.

When they came to the accounting room, Lu Song and the others had not yet arrived. It is estimated that he worked overtime last night, Li Dongsheng didn't care about them, directly found a large piece of paper, and then used a ruler to draw some horizontal and vertical lines on the paper, these horizontal and vertical lines formed a grid, and the expenditure and income were listed separately in the grid for classification, and finally comprehensive calculation.

Waiting for Lu Song to come over, Li Dongsheng took over the accounts they had calculated, and directly classified and calculated them in the table, but he wrote Arabic numerals, because the numbers were too big, they were calculated directly with an abacus, and there was a crackling sound in the room.

Lu Song was upset by this voice, and he couldn't do the accounts, so he couldn't help but come over to see what Li Dongsheng was doing, and saw the table drawn by Li Dongsheng and admired in his heart, this bookkeeping method is unprecedented, the accounts are clear, and it is clear at a glance, what is this ghost-like text?

Li Dongsheng buried his head in the calculation, in fact, there are not many accounts, just tens of thousands of people's daily purchases, sales and inventory, calculated for a while, the accounts handed over to the hand are finished, and when he looked up and saw Lu Song staring at him, his face was so close, people are still children, I will blush if you look at me like this: "Lord Lu, are the other accounts good?" ”

"You're done with all the accounts?" Lu Song asked in surprise.

Li Dongsheng nodded: "Yes, the accounts of the first twenty days are here, and there is no problem in and out." ”

"So fast? How do you calculate? Lu Song still didn't believe it.

Li Dongsheng has no choice, he has to start class again. Don't say he doesn't understand. Therefore, he started from the principle of modern accounting, which is that there must be a loan and a loan, and the loan must be equal, and that no matter how much money is in and out, the number must be the same in the end, otherwise there will be a wrong account. He was talking so much that the few people who hadn't noticed that they were burying their heads in the accounts gathered around him and listened intently.

After Li Dongsheng finished explaining the principles of accounting, he was a little thirsty and was about to find some water to drink, when a voice came out next to him: "Then what is the name of the tool you use?" I see that you are so fast, does it have something to do with this? ”

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