Listening to Mao Xiang's explanation, Hu Changan couldn't cry or laugh.

It's no wonder that these brocade guards looked at him strangely before, and their feelings were treating him as a dancing god.

Hu Changan took a sip of water and said with a smile: "Ladies and gentlemen, I use a character called Arabic numerals, and an arithmetic method called the Four Operations. ”

"As long as you learn my method, you can read the accounts as fast as I do."

When everyone heard this, they were all excited.

I didn't expect this to be a new method of arithmetic, but a new method of arithmetic!

Originally, they still had some resistance to the method of divination.

But when it comes to arithmetic methods, they are not at all averse.

Everyone looked at Hu Changan, and they were all eager to try.

They also want to learn the magic Arabic numerals and the four arithmetic as soon as possible, and get to work soon!

Looking at everyone's shining eyes, Hu Changan also smiled slightly, picked up the stone slab on the side, and explained to everyone.

These brocade guards are all brilliant people, and they have all mastered basic arithmetic knowledge.

Soon, they mastered the Arabic numerals and the four arithmetic.

Everyone was excited to experiment with this novel method of arithmetic.

That's a lot faster than they've used to do the math!

The arithmetic method is to use small sticks to represent numbers from one to ten, and place them on the table in different shapes for calculation.

In the past, when I used the calculation chip, it took half a day just to set the chip correctly.

And this calculation is also quite occupied, often calculated once, it will occupy a whole table.

What's more, if the angle of inclination is different, the meaning of the calculation is completely different.

Therefore, when calculating with a calculation chip, everyone should be nervous to watch out for anyone passing by.

After all, if a passer-by accidentally messes up the calculation chip, it will take them a long time to set up the calculation chip, but it will be in vain!

Calculation with calculation is also a very important reason for the slow audit of accounts.

After all, it takes half a day to do the simplest addition operation, how can the speed of this audit be fast?

These four operations are different.

These four operations do not require any auxiliary tools at all.

As long as a slate and a charcoal pen, you can calculate at any time and anywhere.

In less than a minute, they were able to complete calculations that would have taken ten or even twenty minutes to complete.

It's nothing short of a miracle!

And the Arabic numerals are also quite magical.

Originally, it would take them at least a few minutes to write a number.

After all, numbers are also Chinese characters, how can you write with a brush?

The Arabic numerals are different.

With just one stroke, a number is formed.

In a minute, they can write at least ten Arabic numerals!

This efficiency is definitely more than twice as high!

Everyone was impressed by Hu Changan.

I don't know what kind of excellent brain can come up with such a simple algorithm!

Hu Changan looked at everyone's fiery eyes and smiled slightly.

These four operations and Arabic numerals are a collection of the wisdom of ancient and modern Chinese and foreign mathematicians!

Everyone used it, and they all said it was good!

At this time, everyone was simply full of confidence.

With this magical algorithm, they will definitely be able to exceed Zhu Yuanzhang's task!

However, at this time, some people raised new questions: "Hu Shilang, I don't know how to distinguish this fake account?" ”

When everyone heard this, they also turned their attention to Hu Changan.

That's right, what Hu Changan got this time happened to be the real account.

But what should I do if I get a fake account?

Fake accounts don't speak, saying that they are fake accounts.

Distinguishing between real and fake accounts requires years of experience in doing accounts.

What should those of them who are halfway monks do?

However, when Hu Changan heard this, he just smiled slightly, and said: "No problem, this is easy to do, I happen to have a simple way to distinguish real accounts from fake accounts." ”

"In the real account, the probability that the first number is 123 can reach about 60%."

"And in false accounts, the probability that the first number is 123 is significantly less than 60%."

"As long as you check the account books one by one according to this rule, you will find out the fake accounts in the real accounts."

When everyone heard this, they were all stunned.

This...... What kind of law is this?

It's child's play!

An anxious Jinyi guard took the lead to stand up: "Hu Shilang, although your Arabic numerals and four algorithms are very magical, you can't just take strange things to deceive us!" ”

"I've grown so old that I've never heard of someone who can tell the real story from the fake just by the first digit in the ledger."

"It's simply unheard of! I don't care if others believe it or not, I don't believe it anyway. ”

The words of this brocade guard were immediately supported by many people.

Even Mao Xiang, the commander of the Jinyi Guard, looked at Hu Changan with a frown.

It is true that Mao Xiang felt that Hu Changan's method just now was very good, but now the method proposed by Hu Changan is no different from the dancing god.

Logically, it doesn't make sense!

As a person who has always been rigorous, Mao Xiang disagrees with Hu Changan's approach of coming as soon as he opens his mouth.

However, in the face of everyone's disapproving eyes, Hu Changan smiled slightly and said, "Whether you can understand it or not, there is indeed such a law in the world. ”

"If you don't believe me, you can make up a few accounts on the spot and mix them in the real accounts and show me."

"I bet I'll be able to find out the fakes!"

"It won't take you much time anyway."

"Once this conjecture is verified, you can definitely save even more time!"

Hu Changan knew that unless he saw it with his own eyes, these brocade guards would not believe him.

After all, this thing is indeed logically strange.

The person who invented this conclusion also came to this conclusion through a large amount of evidence and repeated arguments.

When everyone heard this, they were all skeptical.

This is indeed a bit outrageous for them.

No one could believe that such a strange thing existed.

But in the dark, they couldn't help but want to believe Hu Changan.

With what Hu Changan just took out, Hu Changan can definitely be called a master of arithmetic in the world.

Hu Changan swore so much, they couldn't help but be a little shaken.

Could it be true?

After a while, Mao Xiao finally clapped his head and said, "Since this is the case, then you can go to the scene to compile three ledgers and mix them in ten real ledgers." ”

"I'll see if Hu Shilang can pick out these three fake accounts!"

Mao Xiang wants to see if what Hu Changan said is true.