Da Cang night watchman

Chapter 332 Preaching Arithmetic
"Don't you dare! Master Deng is a man, I know it very well!" Lin Su smiled: "Where is Brother Deng's current position?"

"Students don't dare to ask your lord for such a respectful name. Students are currently studying at White Deer Academy to prepare for the imperial examination in two years' time."

"White Deer Academy, the top school in Da Cang, no one can enter unless you are a hero, Brother Deng can enter here, you must be a hero of a generation."

He is still called a brother...

Deng Qiushan sighed: "Master Lin, the students have also heard what your lord and my father said. Do you really think it's possible?"

"You think it's impossible?"

"White Deer Academy has a mathematics department, including the world's arithmetic masters, who study "Nine Chapters of Arithmetic" every day, but up to now, I have never heard of a calculation method that can increase the efficiency by ten times. If there is, yesterday's students Please, it should be another way of saying it.”

He made a special trip to Bailu Academy yesterday to ask for help from the math department of the academy.

However, it was rejected!

Even though he is a student of the Upper School of Bailu Academy and regards the academy as his family, he was still rejected.

Suppression by court officials is one aspect, and more importantly: the academy’s mathematics department can’t solve this problem at all. If it can be solved, even if the direction of the wind is wrong, some students are willing to stand up. After all, if they take action to solve such a problem, then It is an excellent opportunity to be famous in the world, and no one wants to miss it.

"There are "Nine Chapters" in the way of arithmetic, but it's not the only "Nine Chapters". It depends on human effort, and there are always some new methods that can be created...By the way, do you have a carpenter in your house?"

"Yes! Is your lord going to do something?"

"I'll draw a sketch, and you ask him to make it for me quickly..." Lin Su picked up the pen and paper on the bookshelf, and drew a very simple sketch. What sketch?abacus!

Deng Qiushan picked it up and looked at it, but he didn't know why.

Lin Su briefly explained the precautions for transforming the sketch into a real object, and let him do it.

Deng Qiushan went out, found the carpenter in the house, and started working immediately.

In less than half an hour, an abacus appeared in Lin Su's hands.

Deng Qiushan was eagerly waiting for Lin Su to demonstrate, but at this time, the people from the Ministry of Finance had arrived.

Most of the people who came were young people. Judging by the clothes they wore, most of them were not of high grade. The housekeeper embarrassedly introduced that these people were all from the Accounting Department of the Ministry of Accounting. The list given by the adults was 46 people, but there were actually 27 people. , and the rest, some are not in the department, and some have other important matters and can't get away...

A voice came: "Aren't Zhou Su, Zhang Jun, and Li Yangfei here?"

Lin Su raised his head and saw Deng Hongbo, the old man standing on the steps with his clothes on, his expression was quite serious.

27 people knelt down at the same time, see Mr. Deng...

The housekeeper bowed and replied: "Master, these three old slaves know that they are the pillars of the Accounting Department. This matter cannot be done without them. Once this old slave entered the Accounting Department, he was looking for them, but these three people refused. According to Master Li's order, we need to calculate the military budget."

Deng Hongbo was furious, and his beard flew into the air. The Ministry of War had already completed the calculation of funds, and it was just the last little remaining account. Are these three elite soldiers needed?When he fell ill, these three people had a lot of free time in the department, and when he was planning to do something, these three people were all busy. The Lord Li they talked about was the one who followed Lord Shangshu closely, and fought hard with him, the left servant. The right servant who carried it...

Lin Su quickly said, "It's nothing! These people are enough!"

enough?

Deng Hongbo's eyes widened suddenly...

"Come on, let them all come to the study!"

Lin Su turned around and went into Deng Qiushan's study, and the 27 people also came in with their heads down, feeling uneasy.

They knew Mr. Deng's task, and they also knew that it was impossible to complete this matter. They were suddenly involved, and there was no way they could do anything good. Maybe they would be blamed for "not being able to complete the task".

Lin Su said: "Everyone can understand, what is the purpose of letting you come here today?"

Some of the 27 people nodded, some shook their heads...

Lin Su clarified the task: "What you have to do is to gather the strength of 27 people and spend half a month to complete the account review of the Ministry of Accounts last year."

"My lord...it's impossible!" A young man looked up.

"Yes, my lord, it's not that the villains are not dedicated. Even if the villains are exhausted in the counting room, it is impossible to complete this matter. It is a small matter for a villain to be exhausted, but it is a big thing for the adults to be blamed by His Majesty."

All of a sudden, the study room became lively...

Dare to say what you dare not say, what you can say but what you can't say, everything has been said.

The abacus in Lin Su's hand rattled, and all the sounds were muted...

Lin Su said: "Some things seem impossible, but they are actually possible. How about we do a test on the spot?"

A young man at the front asked, "How do adults test it?"

"Each of you give me a number, big or small, and I'll add it up for you! After you report, I'll finish the calculation. Do you think it's possible?"

Everyone was stunned!

is it possible?

How can it be?

The young man blinked: "My lord, you said the number doesn't matter, tens of thousands or tens of thousands are fine?"

"can!"

"How long is the interval between the two sets of numbers?"

"When your voice falls, the second person can count!"

Deng Qiushan at the door of the study was shaken all over his body, suddenly raised his head, and looked at Lin Su in disbelief.

Lin Su beckoned to him: "Come on, brother Deng is next to me and write down the numbers they reported, so that I can check whether my calculations are accurate at the end."

"it is good!"

Outside the study room, a little beauty was hiding under the window, watching quietly. Suddenly, there was another person in front of her, and it was her father. The little beauty flicked suddenly and was about to run away. Her shoulders were not allowed to move, so there was one more person secretly watching...

The 27 people stood up straight, Deng Qiushan stood beside the table with a brush in his hand, Lin Su pressed his hand on the abacus: "Let's start!"

The young man at the front was the first to report: 520, one, two, three, four cents...

Lin Su moved his fingers, and the beads slapped, and when he finished the report, the beads were silent...

All quiet...

"Continue reporting!" Lin Su said.

The second person reported: 630, two, two, four, three cents...

"continue!"

The third person counts...

"Don't wait for me to remind, after the person in front has finished reporting, the person behind will pick up on his own initiative!"

The people behind were dumbfounded...

catch!
Pick up again!

still pick up...

The situation on Deng Hongbo's face outside the window was changing, which song was he playing?Calculated on the spot?What about your calculations?The Accounting Department is the most efficient place in arithmetic. Their calculation chips are ten times better than others. Their calculation chips are divided into tens, hundreds, thousands, and ten thousand. What does that mean?Thousand-character counters use one to count as a thousand, and when they encounter thousands, they use thousand-character chips to count. Therefore, their calculation speed is much faster than that of the outside world.

But no matter how fast it is, it's impossible to get to this point...

Ten people, 15 people, 20 people...

The topic written by Deng Qiushan has already been a whole page...

25, 26, 27...

"It's all over!" The last person said the number and added four words.

Lin Su glanced at the numbers on the abacus, and read: "110, twenty-four thousand, 620, seven, two, three, eight cents."

The whole process takes half an hour.

Everyone looked at each other in blank dismay, is this the end?
There are 27 sets of numbers, each of which is an astonishing number of thousands of digits, and there are zeros and wholes, and it is read out at such a fast pace that Deng Qiushan never stopped writing just to write a topic, but he is strange here. Pull the beads a few times, and the calculation is over?Why is it so unbelievable?

It must have been written indiscriminately!

Lin Su understood the look in their eyes: "Please double-check, after verifying my results, let's go to the next step." Shi Shiran left the study.

In the study room, 27 people took it out as quickly as possible, and began to review. It took a full hour, and with the efforts of 27 people, the result came out. The moment the result came out, everyone was dumbfounded.

The answer given by Lin Su is completely correct, not bad!
There was a loud yell in the study, followed by everyone blowing up...

Lin Su appeared at the door of the study again, and what he met was a group of fanatical eyes, eyes like looking at gods.Lin Su was also somewhat proud. He had never used abacus in that world, but he knew the rules. With the blessing of Wen Xin, as long as he knew the rules, he would become a master of abacus in a blink of an eye. Take it, Wen Xin, Xin Wherever it goes, where the hand goes, and where the brain goes, it is really powerful.

Lin Sudao: "27 sets of seven-digit numbers can be added up in half a quarter of an hour. People in the world think it is impossible, but I can! Is this my ability to reach the sky? No! It's just this new algorithm that subverts you. cognition."

New algorithm!

The 27 people, plus Deng Qiushan, Deng Hongbo outside the window, and Teresa Teng's heart skipped a beat. They have witnessed the magic of this algorithm with their own eyes.

Can I ask him for help?If he is willing to make a move, it will take half a month to approve the annual accounts...it is really possible!

"Want to learn?"

After Lin Su said these three words, the whole room fell silent.

What's the meaning?Why is everyone so quiet?If you don't applaud this handsome guy, he has no sense of accomplishment...

After a long time, the young man at first asked cautiously: "Sir, what do you mean... you can teach us such magical skills?"

"Of course!"

The 27 people looked at each other in blank dismay, all of them were surprised and happy, and some couldn't believe it...

"It seems that people in the officialdom are very reserved!" Lin Su said: "Okay, whether you express your opinion or not, I also know that you want to learn, and I will start teaching now... This set of algorithms is called Abacus , I need to use a tool, I named it the abacus, the abacus looks simple, but actually contains the knowledge of calculation, the upper bead is five, the lower bead, one is one, two is two, three It's three, four is four..."

He explained the basic framework of the abacus.

Everyone's eyes are as bright as stars, and they are like hearing the Tao.

"After understanding the most basic framework, it is the operation rules. There is an addition formula in the operation rules. Everyone should memorize and memorize... One up one, two up two, three down five divide two, four go six into one, five go five Into one, six to one to five to one..."

He was chanting formulas in his mouth, and the abacus beads in his hands were flying to demonstrate...

In the study room, the shadow of the sun moves westward...

At Lin Su's feet, a circle of lotus flowers formed at some point, and a strange fragrance permeated the air. His whole body also had a faint holy light. He let out a voice, and golden lotuses faintly formed in the void...

Evangelism!

The golden lotus of the Dao that only the top Confucian priests have is born from his feet, and the golden lotus of the sage's preaching looms in the air, and none of the people present are half vigilant about these.

They were brought into the preaching, only the Dao but nothing, everyone's comprehension ability was also improved to an unbelievable level, the understanding of the abacus went from vague to clear, and gradually became clear, everyone had a feeling of hearing the Dao for the first time ecstatic……

An hour later, Lin Su finished talking about the abacus calculation.

Everyone woke up like a dream and bowed at the same time...

"Mr.'s skills are truly heaven-like. I wonder if Mr. Bailu Academy is considered a top Confucian?" The young man was full of surprises.

The rest of the people also stared at him with burning eyes and asked the same question.

They didn't know Lin Su, but who in the world could have such a magical skill?Undoubtedly, there is only the top Confucian scholar in the mathematics department of Bailu Academy, and the mathematics department of Bailu Academy is the ceiling of arithmetic in the whole world.

Lin Su said: "This question is not important. The important thing is... You only rely on abacus calculations, which is not enough to ensure safety. I have another method, which can be used together, and get twice the result with half the effort! This skill is called... Da Cang Numeral Talisman , simplified..."

As soon as he stretched out his hand, a piece of paper flew up out of thin air, and the pen in Lin Su's hand fell, and 1, 2, 3, 4 were written on it...

This is one, this is two, this is three...

This is the decimal point. If "two" is used as the unit, the first digit after the decimal point is "money", and the second digit after the decimal point is "fen"...

In this way, the long and complicated string of characters becomes a number, which is more intuitive and easy to calculate...

It's another hour of explanation, and the image of preaching reappears!
The piece of paper in Deng Qiushan's hand was also marked with Arabic numerals by him. His heartbeat accelerated after such marking, and it really became simple, convenient and intuitive...

Things are not over yet, the heaviest skill is here...

Lin Su picked up and drew a chart with grids on the paper...

"Everyone is from the Accounting Department of Dacang, but please forgive me, your accounting methods are extremely primitive and backward, with no distinction between receipts and payments, and unclear calculations. Therefore, I will pass on a new accounting rule to you, and I will introduce it to you. Its name is: Receipt and Payment Accounting Method..."

The new number symbols are included in the table, the front is receipt, the back is support, and the balance is netted...

Clear, simple and convenient...

The vision of preaching this time was exceptionally strong, Duo Duoduo cheered and jumped, and seemed to feel the great change of the times...

After all the teachings were completed, Lin Su left the study, the golden lotus under his feet shook, soared into the sky, and disappeared out of the sky.

The door of the study was pushed open abruptly, and Deng Hongbo appeared at the door of the study: "What do you think?" He eavesdropped outside the window for three hours, but after all, he is not a talent for arithmetic, and he doesn't understand the way of arithmetic, so he doesn't quite understand.

"My lord, this is the skill of heaven and man!" The young man blushed with excitement: "I can assure you that even if there are only ten people, the review can be completed within half a month!"

"Really?" Deng Hongbo grabbed his shoulder suddenly, and his face turned red like blood.

"Your officer can assure you!"

Another person stood up: "Absolutely!"

"Then... what are you waiting for? Go back to the Accounting Department and start working overnight!" Deng Hongbo flung his clothes off and rushed out of the study room. At this moment, how could he be a bit sick?
The young man took a few steps forward and turned his head abruptly: "Mr. Deng, that gentleman...you invited him from Bailu Academy yesterday, right? Who is he?"

"He... is Lin Su, the number one scholar Lin Su!"

what?
Everyone present was stunned!

Not at all a top scholar in the Math Department of Bailu Academy!
He is the one who stirs shit in the literary world and the big bosses in the capital keep secret!
He is famous all over the world for his poetry, how could he be the peerless genius who pioneered arithmetic?

Deng Hongbo urged them to go...

(End of this chapter)