Wanderer of the whirling world

Chapter 38 The Mystery of the Treasure
Jia Xian listened to Bao Gong's question, first nodded, then shook his head, which made everyone feel dazed.

Just listen to him say:
"There is indeed a method to solve the problem in the book. The operation text says: 'If the remaining two of the number of three and three are left, set 140; if the remaining three of the number of five and five are left, set 63; 230 three, subtract it from two hundred and ten, and you will get it.', the answer: '23.'”

"However, this problem-solving technique is limited to problems with 'three', 'five' and 'seven' as the fixed number. The calculation problems on the gold tablets cannot be solved by this method."

Xu Liang asked in surprise:

"Old Mr. Jia, what you just said is that the topic in the sutra is so similar to the one on the golden slip. Is there no way to work around it?"

Jia Xian pondered for a while before replying:

"What the three generals said is very true. The old man also thinks that there should be a flexible solution, but it takes some time to think about it."

He turned to Xin Ziqiu and said:
"Xiaoqiu, what do you think?"

Xin Ziqiu hugged his shoulders, looked at the topic, and began to think.

As Jia Xian said, this is a problem of "I don't know the number of things". For the Chinese remainder theorem, very famous.

The solution to this problem in "Sun Tzu's Mathematical Classics" is very simple, but not general. The three divisors can only be 3, 5 and 7.

It was not until almost 200 years later that Qin Jiushao, a great mathematician in the Southern Song Dynasty, created the "Dayan Qiuyi Technique" in his book "Nine Chapters of Numbers", and gave the general solution and problem-solving procedure for this kind of problem.

After another 500 years, Gauss, a famous western mathematician, finally gave a systematic solution based on modern number theory.

And his method is actually basically the same as Qin Jiushao's "Da Yanqiu Yishu".

It can be seen that during the Song and Yuan Dynasties, ancient Chinese mathematics flourished.

In the eyes of a modern number theory expert like Xin Ziqiu, this problem is not too difficult. The common divisor can be eliminated by decomposing the prime factor method, and then the linear congruence equation system can be established to solve it. The steps are very fixed and nothing new.

Even if he spends a little time, he can figure out the answer in his head.

What made him think was not the solution to the problem, but the mysteries behind it.

Leaving aside whether there was such powerful smelting and seal-cutting techniques in the pre-Qin period that could carve out such exquisite gold bamboo slips, the title alone is puzzling enough.

Although this "things don't know how many things" question is not difficult, it is definitely not easy. Even a great mathematician like Jia Xian was at a loss for a while.

Even for him, it is quite difficult to solve this problem before he has basic knowledge of elementary number theory.

It is really unbelievable to say that this is a pre-Qin calculation that was more than 1000 years away from the Song Dynasty.

Could it be that the ancients at that time had such a reserve of knowledge beyond the times?

But what surprised him the most was the inextricable connection between this topic and the mysterious "Xuan Ming".

It was no accident that two golden slips appeared at the same time, one with calculation questions and the other with Xuan Ming's portrait.

Xin Ziqiu originally made up his mind to only help solve the calculation problems, and then find a way to cure Jia Zhiqing, and then live in the capital for six months to complete the quasi-walker test.

But the gold slip, and Xuan Ming behind it, did arouse his curiosity, making him want to continue to explore.

He didn't answer Jia Xian's question, but looked at Bao Gong and said:

"Master Bao, what is the relationship between the gold document and the calculation question and the treasure, can you tell me the details?"

Baogong didn't expect him to ask this suddenly, so he thought about it and said:
"The matter has come to this point, there is actually nothing to hide. Since Mr. Jia and Mr. Xiaoqiu also know about the treasure, the government will tell the whole story from the beginning today."

……

He cleared his throat and said solemnly:

"Four months ago, when an eminent monk of the Daxiangguo Temple was sorting out the collection of scriptures, he accidentally discovered an ancient Sanskrit Buddhist scripture. In the cracks, there were many notes written in Chinese characters. The age has passed. Can't test."

"Originally, annotating in the cracks of books is a very normal thing, but after this eminent monk read the notes, he found that what was written in them had nothing to do with Buddhist principles, but recorded a secret."

"Do you know Lord Xinling?"

Wei Wuji, Lord Xinling of the State of Wei, was one of the four sons of the Warring States Period, a famous military strategist and statesman during the Eastern Zhou Dynasty.

Although Xin Ziqiu's education level is not high, he has learned the ancient prose "Xinling Lord Steals Talismans to Save Zhao" in middle school, so he has naturally heard of this famous figure in the Warring States Period.

In the late Eastern Zhou Dynasty, the Qin State was powerful, and the six kingdoms were in danger.

In the Battle of Changping, Zhao Kuo "talked about war on paper" and was defeated by the Qin State, ruining Zhao's 40 troops.

The king of Wei was worried about Qin's revenge, so he stationed his troops in Yecheng and waited and watched.

At this time, it was King Xinling of Wei State who led the retainers, stole the military amulet of King Wei, killed the general Jin Bi who did not obey orders, commanded the army to defeat the powerful Qin army, and relieved the danger of Zhao State. The famous story of "Stealing Talismans to Save Zhao".

After that, Lord Xinling led the Allied Forces of the Five Nations to defeat Qin in the south of the Yellow River, and directly attacked Hangu Pass, beating the powerful Qin who was then invincible at that time.

Not to mention the historical merits and demerits, this gentleman was able to slow down the process of the destruction of the six kingdoms with his own strength through the strategy of coordinating and vertically.

And Mr. Xinling is very thirsty for talents, accepts many disciples, and is quite famous in the Jianghu.

Jiang Ping, Xu Liang and others didn't read much, but they all came from reckless backgrounds, and they had heard of Lord Xinling and his disciples Hou Ying, Zhu Hai and other chivalrous and brave men, and they all nodded their heads.

Master Bao smiled in satisfaction, the gangsters under him were not considered vulgar, and he didn't need to explain himself, and then said:

"According to the historical records, Lord Xinling lived in the state of Zhao for more than ten years after he defeated Qin. After returning to the state of Wei, he was slandered by rumors and was suspected by the king of Wei. Years later, he died of illness in Daliang, the capital."

"But according to this note, Lord Xinling's extravagant debauchery is just an illusion. In Daliang, which is today's Bianliang, he secretly planned an anti-Qin organization, intending to overthrow Great Qin by his own strength."

"At that time, he lost his military power and was monitored by King Wei. All his activities could only be carried out in secret, but he had the support of some powerful warlocks at that time."

"Alchemist?"

Everyone was taken aback and looked at each other.

Fang Warlocks, also known as alchemists, were mysterious and unpredictable. They were a powerful force in the pre-Qin period, but they gradually declined in the Han Dynasty. Since the Jin Dynasty, they have been replaced by Taoists and disappeared.

When Baogong said this, he couldn't help frowning.

He is a scholar, and he firmly believes that "the son does not talk about the strange power and the gods", and he does not want to discuss these ghosts too much, but one thing that happened, he couldn't help but pay attention to the mysterious events recorded in the notes.

……

(End of this chapter)