Chapter 199: Young and Dashing in Fresh Clothes and Angry Horses

The Yilun Hall, with a single-eave hanging mountain roof, is seven rooms wide. In the center, there is a throne for the Emperor to sit on, but Zhu Yijun did not let anyone ascend the throne. Instead, he held a book, placed a large blackboard and a few pieces of chalk beside him, and stood on the stage, looking at the people below.

This is a very special class, a class where the Emperor stands and the students sit. This violates the etiquette. The Emperor stands, but the students sit. However, the Minister of Rites did not raise any questions because this was requested by His Majesty.

The students have to take notes and take quizzes. Standing is impossible to do.

After the students, more than a dozen court officials sat, participating in this audit.

Zhu Yijun looked at the students below the stage. He clearly knew that the people below could basically be determined to be the Jinshi of next year. In order not to make the Emperor's teaching lose the friendship between the monarch and the minister, these were all the elite of the elite.

Zhu Yijun, who had participated in many grand court meetings and court discussions, did not feel stage fright at all when facing the sea of heads below the stage. It was just that he was not very tall, after all, he was still young.

It doesn't matter if he is not tall. Fan Yingqi, a disciple of the Jin Party and Ge Shouli, had already increased the height of the podium significantly.

"Guo Shoujing." Zhu Yijun wrote a few large characters on the blackboard, and then said, "Guo Shoujing and Zhu Shijie are the last brilliance of Chinese mathematics. Many students are wondering, why do we have to learn mathematics?"

"Mathematics is the principle of ten thousand things from one, the method of reaching the origin, mathematics is the general principle of the three talents and ten thousand things, mathematics is the language of ten thousand things, the only way to make ten thousand things speak."

"However, the development of this discipline has been stagnant since the end of the Tang Dynasty, and the Song and Yuan Dynasties were its last brilliance."

"Zhu Shijie's 'Introduction to Mathematics' and 'Jade Mirror of Four Elements' were only picked up by the Imperial Uncle recently, and explained completely."

"We are chasing the brilliance of our ancestors' mathematics."

The significance of the degree and side connection does not need to be repeated. Its penetration into Great Ming's production and life is in every aspect. Even the officials' remonstrances no longer talk about demon-delusional techniques, most of them are saying it is too difficult, asking the Emperor for some time, so that everyone can get used to mathematics that has not been studied for more than two hundred years.

Great Ming's backwardness in mathematics is an indisputable fact. Limited by the influence of various public opinions, the group of Confucian students, or the group of Confucian students, does not attach importance to mathematics. For example, the four-element technique that Zhu Yijun is lecturing on now is an equation with four unknowns. Not to mention the four-element technique, even the Tianyuan technique, an equation with one unknown, is a difficult thing for Great Ming to understand.

"Let's look at this triangle first. This is the Yang Hui-Jia Xian triangle, from 'Detailed Explanation of the Nine Chapters of Mathematical Art', proposed by Yang Hui three hundred years ago, and Jia Xian had already used this triangle about five hundred and twenty years ago in the Northern Song Dynasty. It is a typical combination of number and shape."

"It is easy to see that the two sides of this triangle are all 1, and inside the triangle, each number is equal to the sum of the two numbers above it."

"How exactly should this Yang Hui triangle be used? In the expansion of a+b^n, the coefficients of each term correspond to each term in the (n+1)th row of the Yang Hui triangle."

Zhu Yijun expanded an (a+b+c+d)^, demonstrated the specific application of this Yang Hui triangle, treated a+b and c+d as a whole, and then expanded it. This is called "Four-Element Self-Multiplication Deduction Diagram" in the Jade Mirror of Four Elements.

He lectured very quickly, his speaking speed was moderate, and he soon explained several examples in the Jade Mirror of Four Elements very clearly and thoroughly.

Zhu Yijun lectured for nearly half an hour and found that the examples were not difficult at all. Suddenly, he said, "There is an example here."

"Recruiting soldiers by cube, the first recruitment is three feet on one side, the second recruitment is one foot more on one side, and the result is soldiers. Now recruit for fifteen days, each person spends two hundred and fifty wen per day, ask how many soldiers are recruited and how much money is spent?"

One foot stands one person, recruiting soldiers by cube, that is, the first day 3*3*3 = 27 people, the second day each side has one more person, then it is 4*4*4 = 64 people, the third day is 5*5*5 = 125 people, and so on.

Zhu Yijun asked the students to calculate. The students took out their abacuses and started to calculate. They were all integers, which was not difficult. The total number of recruited soldiers was 3^3+4^3+5^3+……+17^3, and the final result was 3400 people, total copper coins spent, which was 346 guan.

It took a quarter of an hour, and ninety students gave the answers one after another. Zhu Yijun smiled and said, "Calculated too slowly, now perform the fourth-order interpolation solution."

"Find the first difference is 7, the second difference is 37, the third difference is 4, the fourth difference is 6. We only need to bring in such a song, and we can very quickly find the result."

Zhu Yijun finally lectured on the practical application of the fourth-order interpolation recruitment difference method. He tried his best to explain it clearly, explained the concept of the fourth difference clearly, and explained how to simply sum it up clearly.

After he finished lecturing, he found the confusion on the faces of the ninety students, and then he gave several examples in a row. These students began to stumble and use it. By the end of the class, the fourth-order interpolation recruitment difference method was finally completely mastered by the students.

Zhu Yijun revealed a sincere smile. He smiled and said, "Today's class has exceeded the time by more than half an hour, but I see that most of the students have already mastered this method. I am very gratified. The teacher told me that the recruitment difference method is too difficult and feared that the students would not be able to learn it. Seeing it today, it is not so."

"After class, you students can use this interpolation method more. Actually, it is not difficult. If you don't know, don't be shy, you can discuss it with each other."

"I am here, if you have any questions, you can ask."

"Your Majesty, the student has a question." Zhang Siwen heard that he could ask questions, and was overjoyed, raising his hand to signal.

"You speak." Zhu Yijun nodded, signaling Zhang Siwen that he could ask.

"Your Majesty, the student is confused. Mathematics is more like a highly complex intellectual game performed by experts to show how to solve difficult problems. Is it really that important? If it is important, why didn't Great Ming attach importance to it before, and why attach importance to it now?" Zhang Siwen expressed his confusion. He didn't understand the degree and side connection very well.

As soon as Wang Qian said this, Wang Chonggu directly held his forehead. He had specially told Wang Qian not to speak if there was nothing to do, but Wang Qian directly asked a very strange question, questioning the importance of mathematics or the degree and side connection.

"You asked very well." Zhu Yijun said with a smile, "Yes, it is that important. Even if it is just a highly complex intellectual game, it can screen out a large pile of corrupt Confucian scholars with illogical thinking in the imperial examinations. This point alone is completely enough to be worth promoting."

"The reason why Great Ming didn't attach importance to it before and attaches importance to it now is actually the same as the law of development of things."

"The law of development of all things is roughly like sawing wood, sometimes forward, sometimes backward, but generally developing toward depth."

"For example, the atmosphere of promoting literature and suppressing martial arts in Great Ming was rampant before. Since Wang Ji received a secret edict to kill military generals, this wind has spread to the Tumu Crisis, and then from the Hongzhi era, it spread to the 29th year of Jiajing, when Altan Khan invaded."

"If you are beaten, you have to revitalize martial arts. Because you didn't attach importance to mathematics, Great Ming couldn't even measure the farmland, so you have to attach importance to it again."

As for the significance of mathematics, Zhu Yijun would need to lecture for more than a dozen chapters to really explain it clearly. In summary, it is the general principle of the three talents and ten thousand things.

Wang Qian heard this and found that the Emperor completely used the negation of negation of the theory of contradiction to answer, and immediately expressed that he understood clearly.

Great Ming's opposition to mathematics, in addition to demon-delusional techniques, actually has another problem, that is, utilitarianism. Mathematics is highly and closely combined with doing business, and the status of merchants is low because merchants have a heavy heart for utilitarianism.

But the imperial court now has to perish if it is not utilitarian.

Zhu Yijun has been reading the National History and Veritable Records recently. The weakness of Great Ming at this time was definitely not achieved overnight, but a downward cycle. The speed of this downward cycle is not constant. There are also Emperor Yingzong and Emperor Xiaozong who stood up and stepped on the accelerator to the end, accelerating Great Ming's downward slide.

Emperor Jiajing did not attend court, and Emperor Longqing did not see the auxiliary ministers and court officials, but they still approved the memorials.

After the thirty years of Emperor Wanli, Emperor Wanli directly stepped on the accelerator into the fuel tank, letting Great Ming on the downhill road plunge into the abyss.

No matter what, the memorials still have to be approved.

"Can the recruitment difference method only be used for summation in high-power operations?" Another student started to ask.

Zhu Yijun said with a sunny smile several application cases of the recruitment difference method. The recruitment difference method is a fitting method, which can be used in all aspects of life, such as construction, recruiting soldiers, recruiting labor, cargo transportation, smelting, astronomy, etc. For example, in smelting technology, you have to determine the addition amount of a certain material, etc.

Zhu Yijun explained with the recruitment difference method how to calculate the visual degree of the sun, moon, and five stars. He only touched on it lightly. For students, it was still too difficult. If they wanted to enter the Astronomical Bureau, they could continue to study.

Zhu Yijun answered the students' questions until sunset, and then ended the first class today.

Overall, his first class was extremely successful.

"Your Majesty has worked hard. Your Majesty's lecturing is truly like thunder in the ears, and the listeners are all enlightened." Feng Bao saw that everyone had dispersed, and came up with a compliment. This was lecturing for a class, standing for an hour and a half, which was truly extremely hard.

"Flatterer, prepare the horse, go to the Beijing camp." Zhu Yijun didn't let Feng Bao continue to flatter, but chose to go to the Beijing camp to review the army. Emperor Chengzu Wen said that even if it was raining knives, he had to carry a steel umbrella to review the army in the Beijing camp.

Let the soldiers know who the Emperor is.

"Your Majesty, rest for a day." Yu Dayou was old, but he insisted on listening to this class. He was a rough man, but he learned the recruitment difference method. Before coming, Zhang Juzheng said he wanted the little Emperor to lecture on the four-element technique. After His Majesty finished lecturing on the four-element technique, he lectured on the recruitment difference method, and Yu Dayou understood both the four-element technique and the recruitment difference method.

Of course, during this lecturing process, no student raised that the teacher had delayed the class.

After all, there were twenty ritual correction officials standing on both sides of the Yilun Hall. Any student who dared to say this would inevitably be physically corrected.

"Rest today, want to rest tomorrow too. I am young, I cannot rest. I will go to the Beijing camp first, you all go back." Zhu Yijun waved his little hand, turned over on his horse, and ran toward the North Tucheng outside the Desheng Gate.

Ge Shouli looked at His Majesty's departing back and said with a smile, "Young and dashing in fresh clothes and angry horses."

The sun was rising, Ge Shouli was extremely gratified, and at the same time, he felt incredible about Zhang Juzheng's power to turn decay into magic.

Zhang Juzheng held his hands and said, "His Majesty's lecturing is deep and shallow, whip-like and penetrating, and he used all the methods he could use to let the students understand. The Zhongshu Sheren who recorded the diary of activities had already copied it. This class was lectured extremely well."

"Zhang Huang Bang announced the content of this class. The monthly exam will test the recruitment difference method. Those who get eight points out of ten, go to the woolen official factory to fish for wool for three days. Fan Libationer, this matter will be handed over to you."

"Yes." Fan Yingqi immediately took the order. He didn't think this requirement was very high. His Majesty's teaching was extremely vivid, logical, and rigorous. For the students of the Imperial Academy, if they couldn't learn this, they would be too sorry for His Majesty's preparation if they didn't find a rope to hang themselves.

The Emperor personally taught and lectured, and lectured so well that it exceeded everyone's expectations.

Zhang Juzheng was afraid that the students wouldn't understand the recruitment difference method, so he let the Emperor lecture on the four-element technique. He probably underestimated the Emperor's teaching ability. From the reaction of the students after class and Yu Dayou's reaction, this class was very successful.

The monthly exam of the Imperial Academy depends on this content. Can't learn it? If you can't learn it, go to labor reform, experience the hardship of the poor people, do three days of physical work, know that today's life is not easy, and you will definitely learn it next month.

The Imperial Academy was immediately filled with wails, but Jiao Hong, after reading the yellow list, had completely realized the application of the recruitment difference method, and it was really not very difficult.

Zhu Yijun came to the North Tucheng camp again. He didn't toss the soldiers. The training was over. He just walked around. The soldiers thought the Emperor wouldn't come today, but they still saw the Emperor's carriage, dragon flag, and the Emperor himself talking to Marquis Qi before the sun went down.

This made the soldiers of the Beijing camp extra at ease.

The dragon flag floating in the Beijing camp for a day proves that Great Ming's revitalization will not end.

After Zhu Yijun killed the base scholar Chen Youren by hand last time and it spread in the Beijing camp, Zhu Yijun entered the military camp, and the soldiers supported him from the bottom of their hearts.

Zhu Yijun and Qi Jiguang chatted about the war in the Northeast. The Ningwei and the Tuman Khan had fought more than twenty small-scale battles, each with wins and losses. But Great Ming relied on the advantage of the camp to completely repel the Tuman Khan's attempt to seize the Ningwei.

Wang Rulong is not Tang Kekuan. Wang Rulong is Qi Jiguang's direct line, listening to the military orders, and fundamentally does not take the initiative to fight outside the camp. The Qinglong Fort, Xingshu Fort, and Taotu Mountain Fort are in a horn-to-horn position. Without artillery, wanting to capture it is a daydream.

"Your Majesty, take a day of rest." Yu Dayou was old, but he still insisted on listening to the end of this lecture. He was a rough man, yet he had actually learned the method of differences. Before coming, Zhang Juzheng had said he wanted the young Emperor to explain the Four-Element Theory. After His Majesty finished explaining the Four-Element Theory, he then explained the method of differences, and Yu Dayou had understood both.

"Subahai is very desperate, because even if he defeats the Zhangwu defenders, from Zhangwu to Pinglu Fort, there are earth camps everywhere. He must gnaw them down, otherwise invading Liaodong is a one-way trip." Zhu Yijun's military talent is zero, but he also knows that if Subahai rushes in, he will only die.

Once Subahai rushes in, it is like infantry entering a minefield, and there is no safe place in all directions.

Hou Yuzhao's farming in Liaodong caused great trouble to his direct opponent, Subahai.

"The minister is more worried about the reconciliation of the left and right wings." Qi Jiguang said with great worry, "This person, Sanniangzi, although seemingly respectful, has been seeking reconciliation between the left and right wings. Last time, she went from Qinglong Fort to the Tuman Khan's golden tent to discuss this matter."

For political figures, gender is secondary, and political identity is crucial.

"What Marquis Qi worries about is also what I worry about. Marquis Qi is too capable of fighting, I thought the Northern Barbarians were weak, but the death of Tang Kekuan clearly told me that even the Fox who was played around by Marquis Qi could kill Tang Kekuan." Zhu Yijun was also quite worried about this problem.

"Get the inside to pick the outside, let the left and right wings not reconcile. Let me think slowly, eh, got it!" Zhu Yijun hit his left fist with his right palm and raised his brows, "Let Wang Rulong take the opportunity to collect a batch of wool before winter. The Tuman Khan's envoy has nagged so many times, so I will be extra generous and buy it at one-third lower than the left wing price."

"This person, don't worry about scarcity, worry about inequality."

Qi Jiguang heard this and only felt a chill in his spine, looking at His Majesty blankly. His Majesty might not be able to fight, but this ability to fan the flames was first-class. As soon as his eyes turned, it was an idea.

If he didn't collect wool, it would be fine, but he collected it and bought it at a lower price based on the left wing price.

The right wing of Tuman Khan originally had no qualifications to participate in the wool business. If they couldn't eat it, they wouldn't be jealous. But if they ate it, but ate less than others, they would immediately be jealous.

And Altan Khan's left wing, originally a unique business, was hard-cut by Tuman Khan at a low price. What would Altan Khan think? He would have the heart to kill Tuman Khan.

"Becoming His Majesty's enemy is truly a sad thing." Qi Jiguang said sincerely. His Majesty can correctly use the power in his hands, which is the most gratifying thing for Qi Jiguang. He can provide an invincible army for His Majesty to use, but if His Majesty doesn't use it, he has no way.

"That still requires Marquis Qi to win, so I can toss them like this." Zhu Yijun smiled brightly.

Military victory brings more initiative, which is an indisputable fact. Everything is based on winning. If you can't win, no matter how many ghost ideas you have, you can't use them.

The backs of Zhu Yijun and Qi Jiguang were pulled very long by the sunset.

After Zhu Yijun returned to the capital on horseback, the first thing he did was to take the miscellaneous reports of the day and read them all. The Quan Jin miscellaneous report comprehensively combed the various technological innovations of the woolen official factory and sang praises for the craftsmen's spirit of research. Many inconspicuous small technologies saved a lot of costs and manpower and material resources. The Jin Party showed their respect for the craftsmen.

The content mainly reported by the Quan Chu miscellaneous report was the serialization of Qi Jiguang's Eastern Expedition Record. The nonsense Record of Pacifying the Japanese Pirates made Zhang Juzheng very, very angry. Great Ming had such an army, and would rather starve themselves than reach out to the people's rice jar. The Eastern Expedition Record was a series of reports on the reality of practice, serializing all the achievements of Qi Jiguang from training soldiers to pacifying the Japanese pirates, focusing on the comparison of the people's lives before and after pacifying the Japanese pirates.

The Quan Zhe miscellaneous report published some progress in land measurement, as well as the various water management of Song Yiwan in the Southern Yamen.

In addition to the three major party journals, many miscellaneous reports sprang up like bamboo shoots after the rain. For example, the People's Daily, which likes to report all kinds of things related to the people, became the most sought-after newspaper besides the party journals. This People's Daily was prepared in the capital by Geng Dingxiang, mainly talking about eating, drinking, and playing, such as Zhu Zaiyu's twelve-tone temperament, various novel musical instruments, and several ways to eat kelp.

The research on goiter disease by the Jieku Institute was also published in the People's Daily.

The miscellaneous report that Zhu Yijun liked the least was the Fuxue Daily founded by Sun Jiegao and a group of retro Confucian scholars. It was all about restoring the past, and they liked to be sarcastic about the government. Chen Youren's bones were not cold, and Sun Jiegao didn't dare to talk nonsense, but still advocated restoring the past.

Zhu Yijun sneered and said, "This Sun Jiegao, scolded by a child until he couldn't return his mouth, still runs a newspaper, and it sells quite well. Look, after a while, he won't even be able to pay the rent!"

Newspapers that can't be sold will naturally be eliminated. Sun Jiegao's Fuxue Daily has a large market, but those old-fashioned things, after being talked about for a long time, no one will listen.

"The Ministry of Rites reported that the Portuguese special envoy Li Yashi wants to run a Western newspaper to publish some overseas interesting things, asking for the Emperor's approval." Zhang Hong took out a memorial. Li Yashi also wanted to join in the fun of running a miscellaneous report to introduce overseas things.

Zhu Yijun took the memorial and read it, then approved it. He approved Li Yashi's request, but specially issued a chapter to the Ministry of Rites, not allowing Li Yashi to preach. If found, it would be banned immediately.

Preaching is absolutely not allowed. The Longxing Temple was taken away more than half to build the Royal Pavilion of Investigation.

"Has Antonio left?" Zhu Yijun asked about the captain's whereabouts. He was an investor, so naturally he had to pay attention to the project progress.

"Borrowed fifty thousand and left the capital, went to Tianjin Guard to take a hydrofoil sailboat to Songjiang Prefecture, preparing to return to the West." Zhang Hong took out a memorandum and found Li Yashi's entry, reporting Antonio's whereabouts.

Antonio bought four ships, bought artillery for two ships, bought some gunpowder, and hired a group of Great Ming sailors and boatmen. These sailors and boatmen were for a five-year term. When the term expired, whether to renew the contract or change ships, it all depended on the boatmen and sailors themselves.

Great Ming ships can carry bows, wear armor, and carry knives. Artillery and muskets can also be equipped, but they are not allowed to draw bows and fill medicine when entering the port. They all have to be supervised by the coastal defense inspectors before they can. And Zhu Yijun gave Antonio the treatment of Great Ming ships. After all, Antonio paid respects to the Emperor as a subject.

Antonio's profits were all used to buy ships, and he still owed a debt.

Great Ming earns money, Great Ming spends it, don't even think about taking a cent home.

Asking for monthly tickets, Aowu!!!!!!!

End of chapter ===== CHAPTER 200 =====

After Zhu Yijun rode his horse back to the capital, the first thing he did was to take the miscellaneous gazettes of the day and look through them. The *All-Jin Miscellaneous Gazette* comprehensively combed through the various technological innovations of the wool official factories and sang the praises of the craftsmen's spirit of study. Many inconspicuous small technologies had saved a massive amount of costs, manpower, and material resources; the Jin Party had demonstrated their respect for craftsmen.

The *All-Chu Miscellaneous Gazette* mainly reported on the serialized *Chronicles of the Eastern Expedition by Qi Jiguang* and the nonsensical *Chronicles of Pacifying the Japanese Pirates*, which made Zhang Juzheng very, very angry. The Great Ming had only this one army; they would rather go hungry themselves than reach their hands into the people's rice jars. The *Chronicles of the Eastern Expedition* was a series of reports on the practice of reality, serializing all of Qi Jiguang's military achievements from training troops to pacifying the Japanese pirates, focusing on describing the contrast in the lives of the people before and after the pacification.

The *All-Zhe Miscellaneous Gazette* published some progress on the land survey, as well as various matters regarding Song Yiwang's water conservancy work in the Southern Yamen.

Besides the three major party gazettes, many miscellaneous gazettes had sprung up like bamboo shoots after a spring rain. For example, the *People's Gazette* liked to report on all sorts of matters closely related to the common people, becoming the most sought-after publication outside of the party gazettes. This *People's Gazette* was organized in the capital by Geng Dingqing, and it mainly covered content about eating, drinking, and having fun, such as Zhu Zaiyu's twelve-tone temperament, various novel musical instruments, and several ways to eat kelp.

The research on goiter by the Institute of Anatomy was also published in the *People's Gazette*.

The miscellaneous gazette that Zhu Yijun liked the least was the *Restoration Society Gazette*, founded by Sun Jigao and a group of restorationist Confucian scholars. It was all about restoration and they also liked to make snide remarks about the imperial government. Chen Youren's body was not yet cold, so Sun Jigao did not dare to speak nonsense, but he still advocated for restoration.

Zhu Yijun said with a sneer, "This Sun Jigao is scolded by children every day to the point he can't talk back, yet he still runs a gazette, and it sells quite well. Just you wait, in a while, he won't even be able to pay the rent!"

Newspapers that don't sell will naturally be eliminated. Sun Jigao's *Restoration Society Gazette* had a large market, but those old-fashioned things, after being talked about for a long time, no one would listen anymore.

"The Ministry of Rites reports that the Frankish special envoy Li Yashi wants to run a *Western Gazette* to publish some interesting overseas stories, and requests Your Majesty's decree." Zhang Hong took out a memorial; Li Yashi also wanted to join in the fun of running a miscellaneous gazette to introduce overseas affairs.

After Zhu Yijun took the memorial and read it, he used his vermilion brush to approve it. He granted Li Yashi's request, but specifically issued a decree to the Ministry of Rites not to allow Li Yashi to proselytize; if any was discovered, it was to be banned immediately.

Proselytizing was absolutely not to be allowed; more than half of the Great Longxing Temple had already been taken away to build the Imperial Institute of Natural Sciences.

"Has Antonio left yet?" Zhu Yijun asked about the captain's whereabouts; he was an investor, so naturally, he had to pay attention to the project's progress.

"He has borrowed five hundred thousand and has already left the capital, going to Tianjin Guard to take a hydrofoil sailboat to Songjiang Prefecture, preparing to return to the West." Zhang Hong took out a memorandum, found the entry for Li Yashi, and reported Antonio's whereabouts.

Antonio had bought a total of four ships, bought firearms for two ships, bought some gunpowder, and hired a group of Great Ming sailors and boatmen. This group of sailors and boatmen were on five-year contracts; whether to renew the contract or change ships when the term expired was entirely up to the boatmen and sailors themselves.

Great Ming ships could carry bows, wear armor, and be equipped with swords, cannons, and muskets, but they were not allowed to draw bows or load ammunition when entering port; everything had to be inspected and monitored by the maritime defense inspectors. Zhu Yijun gave Antonio the treatment of a Great Ming ship, after all, Antonio had claimed vassalage when he had an audience.

All of Antonio's profits were used to buy ships, and he still owed a mountain of debt.

Great Ming makes the money, Great Ming spends it; don't even think about taking a cent home.

Begging for monthly votes, awoo!!!!!!!!

End of this chapter