Chapter 12: Do you know the devil in the way of arithmetic?

Zhao Zi's face was solemn, he squatted down tremblingly, and began to draw a circle on the ground with a new stone.

"Salad!"

After a crisp grinding sound, a circle appeared on the ground.

He imitated Bai Mingzhe's behavior and performed the circumcision technique in a similar way, while Lu Bushu lifted his heart and held his breath to watch this junior disciple from the land of Yan Zhao operate.

"Sand, rustle, rustle......" graceful straight lines poured out from the ends of the stones, and in a few moments, the circle was divided into more than a dozen.

After doing it himself, Zhao Zi felt more and more that the circumcision technique contained the supreme way of mathematics and physics, and his true heart was shaken.

When Bai Mingzhe saw Zhao Zi's calculation level, he was so anxious that he sighed and said, "Alas, when will you become a head if you go on like this?" Otherwise, you go back and verify it slowly, and before that, you and I will ask another question and compete for the winner. ”

Zhao Zi put down the stone in his hand, stood up, and nodded, "But!" ”

As Bai Mingzhe said, he is not good at geometry, and if he wants to complete the verification, it will take at least two days, so it is better to ask a new question.

"In that case, then please ask the question!"

"Please forgive Zhao Zi for being rude." His eyes flickered, and he thought of a topic, so he hurriedly asked: "Today, a few people buy things together, each of them gives eight yuan, and the surplus is three yuan; People pay seven dollars, less than four dollars, ask the number of people, what are the prices? ”

In the Han family, the crown of mathematics was regarded as a geometric problem, and since he was not a person who specialized in mathematics, he could only propose some applied problems.

However, he is also very particular about asking questions, and he definitely does not mention the topics recorded in the classic books that spread the world, and if he wants to mention them, he will mention the topics recorded in the unpopular books, so this topic of buying things is put forward as the time comes.

Bai Mingzhe yawned, stared at Zhao Zi with a bored gaze, and said casually: "Seven people, the price is fifty-three yuan."

I knew that this would be the result, so I might as well let him continue to calculate. Such a simple question, who is insulted.

I looked forward to it for a long time, and I thought I could move my muscles and bones, but I didn't expect that it was a problem of a one-dimensional equation.

You don't even need columns for systems of equations.

Oral arithmetic!

Zhao Zi: "......"

This time, it was Lu Bushu's turn to be silent, secretly calculating.

Many of the spectators present were also pinching their fingers to count, and although they were shocked when Bai Mingzhe shouted the answer directly, they only thought it was a joke.

How can anyone calculate the results so quickly?

So they continued to count their fingers.

This group of people didn't even believe in the easy-to-understand circumcision, let alone the topics that they thought were more complicated.

But Zhao Zi, who knew the answer, was different, his eyes widened, his jaw was about to fall, and he exclaimed: "Impossible!" How did you calculate so fast? Even if I joined forces with my classmates, it would have been nearly two hours! Why do you tell the answer in one word? ”

Lu Bushu looked at Bai Mingzhe's eyes, constantly revealing a look of fear, his tone trembled, and said, "Brother Xian, he said it right?"

"That's right." Zhao Zi's strength seemed to be suddenly drained, and finally he reluctantly admitted.

"It's just an oral arithmetic, why don't you come up with another one?" Bai Mingzhe put his hands on his chest, his eyes were blank, and he waited quietly.

Oral arithmetic?

It's too much of a deception!

Damn it!

Is this ridiculing himself for the incompetence of Yan Zhao?

Zhao Zi glared at Bai Mingzhe viciously, and tried hard to recall the topic in his mind: "Today, there are doctors, no more, hairpins, hairpins, and public soldiers, where there are five people, a total of five deer can be hunted." If you want to divide them by knighthood, ask how much each gets? ”

Bai Mingzhe shook his head in disappointment, and after two breaths, he once again said the answer: "The doctor has one deer, two thirds of the deer." No, one more deer, one of the three deer. The hairpin is wrapped in a deer. Two-thirds of the deer. The public is one of the three deer. ”

That's right again!

When Zhao Zi heard the answer, the whole person was moved, and exclaimed: "Could it be that you are the Marquis of Beiping?" No, your surname is white, it is impossible to ......"

The reason why he is full of self-confidence is because he has a very good personal relationship with Zhang Zhi after the Marquis of Beiping.

As a mathematician, Zhang Cang knows a lot of mathematical problem-solving methods.

The questions that Zhao Zi had just now were all from Zhang Cang's "Nine Chapters of Arithmetic". Although the "Nine Chapters of Arithmetic" has not yet been written, it does exist.

Now Bai Mingzhe replied casually, he could only think that Bai Mingzhe had read Zhang Cang's legacy codex.

Other than that, he couldn't believe that anyone could casually solve such a mathematical problem.

Too lazy to respond, Bai Mingzhe yawned and said lightly: "You asked two questions, is it time for me to ask you?"

Zhao Zi took a deep breath, closed his eyes slightly, opened them suddenly, and said, "Ask!"

"Good!" Bai Mingzhe clapped his hands and said mercilessly: "It's still that question, the relationship between the Pythagorean strings, please answer it!"

Zhao Zi's face instantly darkened, and his forehead was covered with lines, "Jun is too deceitful!" Mozi doesn't know, how can we know! Even you don't know yourself, what kind of face do you have to ask others? ”

Bai Mingzhe shook his head disdainfully, "Who said I don't know?" ”

"Then tell me what is the connection between the two!"

"Hahahahahaha, since you ask for advice, then I will tell you, and I will also tell the world the answer!" Bai Mingzhe laughed a few times, and explained in the loudest voice: "The product of the hook and the hook plus the product of the strands is the product of the strings and the strings!"

Zhao Zi squatted down, picked up a stone, and calculated on the ground in disbelief.

"Salad, salad, salad."

One character after another appeared in his pen, and after a while, he verified the three Pythagorean numbers of "three, four, and five".

He raised his head with difficulty, his face instantly pale, "Impossible...... Is this really true! ”

Unwillingly, he continued to paddle on the ground, trying to verify "five, twelve, thirteen".

It took about two sticks of incense for him to finally verify it again.

Exactly! In line with this law.

Lu Bushu was so anxious that he was sweating profusely, and seeing that Zhao Zi didn't speak for a long time, he finally couldn't help it, and asked, "How is it?" Is this really the law? ”

Zhao Zi smiled bitterly, "Brother Lu, this time, I'm afraid I am planted." Although there are several other sets of data that have not been verified, however, judging by the results so far, I am afraid that it is really ......"

This master disciple of the Han poetry school has foreseen that in a few days, the academic storm of circumcision and the theory of Pythagorean will spread all over the world!

And he and Lu Bushu will be a joke in this academic storm.

Two students who have not yet completed their studies dared to provoke an arithmetic master, which really ate the bear's heart and leopard's gall.

"It seems that you have completed the verification, so I will accept this seal." Bai Mingzhe smiled, stepped forward, and picked up the Xunzi seal and his money bag.

He looked at Zhao Zi, who was squatting on the ground, his heart was full of unwillingness, but he couldn't vent, and glanced at Lu Bushu, who was extremely angry and his body trembled slightly, and asked Zhao Zi one last question, "You ask me two questions, although the competition is over, but I still want to ask another question." Ask a question that you should have learned. ”

Zhao Zi raised his head, a trace of firmness flashed in his eyes, and said in a deep voice: "Please say it!"

Bai Mingzhe laughed evilly, "I have already taught you the Pythagorean principle just now, so may I ask, a right triangle, hook one, strand one, what is the chord?" ”

Aren't you two unconvinced? Then I'll make you panic for a few days!

After that thing appeared in the West, it used to kill many people.

As for China, it first appeared in the Nine Chapters of Arithmetic. And "Nine Chapters of Arithmetic" was written, and it is still more than 200 years from now.

After saying the question, Bai Mingzhe was too lazy to continue talking nonsense here, he pulled Su Jian and left directly.

Looking at the two departing figures, Zhao Zi was extremely unwilling,

But this last one is the problem...... He closed his eyes and began to build the model in his mind.

The Pythagorean triangle does exist, its strings do exist, then its length is ......

"Hook one, strand one...... ......" Zhao Zi kept murmuring, and as his thinking deepened, his face gradually darkened, as if he had eaten a rancid meal, "This ...... No way! How to ......"

Lu Bushu had already thought of a way to retrieve the seal, so he started jumping again on the side, although his complexion was not very good, but it did not affect his hypocritical heart at all.

"Why is the virtuous brother sad? He has stated the calculation plan, isn't this the subject of oral calculation? ”

Just now, Lu Bushu secretly verified it with three strands of four, seven strands of twenty-four, and twenty-five strings, and the answer was as Bai Mingzhe said, which was completely correct.

So he thought he had mastered the Great Dao, and he couldn't help but go back and pretend to be forced.

I believe that after being raised in Taixue, not only other classmates, but also gentlemen will also be impressed by themselves.

Zhao Ziyu hesitated, glanced at Lu Bushu, and said, "Dare to ask Brother Lu, hook one strand one, how geometric is the string?"

"Brother Xian, it's good if you bring it in."

Lu Bushu looked like a brother teaching his juniors, smiled and substituted the hook strands one by one, and began to calculate.

"You see, the product of the hook one and itself, plus the product of the strand one and itself, and after finding the multiplied length, it is ......"

Lu Bushu smiled happily and was full of pride.

The calculations went smoothly, as if a boat was being pushed along the river.

It adds up to two, and it doesn't get any simpler than that.

He continued to delve into the calculations and prepared to prescribe the square.

At this moment, his pupils suddenly contracted, as if he had seen the devil, and screamed: "This...... No way! The formula he gave is fake! No way! This is not true! ”

"Brother Lu, it seems that Jun has also found out." Zhao Zi smiled bitterly.

I don't understand why this is happening, but there must be something that has been overlooked.

It's not just him, I'm afraid that for more than a thousand years, countless mathematicians have ignored this situation.

They always hide their fear with an unprescribable solution.

Since twenty-five squares can become five after opening, then ...... Why can't other values be squared?

Zhao Zi looked at the direction of the exit of the West Market, and said loudly: "Brother Lu, it's my nephew who lost!" That gentleman's understanding of the way of mathematics, I'm afraid, is close to Zhang Cang, the Marquis of Beiping! ”

It seems that he used to be careful in the belly of a gentleman.

I didn't expect Bai Mingzhe to have real talent and learning.

From this point of view, that circumcision technique is probably also true. As of today, the devil that has been coiled in the world of mathematics for more than a thousand years has been subdued, however, a new devil has also been released.

Irrational number!

This guy who was like a ghost, wandering in the numbers for an unknown number of years, was released by Bai Mingzhe.

I am afraid that in less than a month, the world's mathematical community will set off a huge wave.

Countless mathematicians will embark on the journey to Chang'an, in order to talk to Bai Mingzhe and understand the way of mathematics and reason.

This kind of grand occasion also represents the emergence of a great master of arithmetic!

An arithmetic master comparable to Mo Zhai!