I

  Chapter 217 215【Cultivation of seedlings】

  Xiao Shixuan had been to the General Military Mansion before, and he came with his father Xiao Weigong.

   After Fei Ruhe led his troops to drive away Sailubu and seized the entire Taihe County, the father and son came to inquire about the return policy.

   As a result, the living Xiao family members divided land as normal as the common people. Real estate, shops, workshops, etc., as long as they can produce a deed certificate, all will be returned to the Xiao family. If the deed cannot be produced, it will be confiscated.

  Zhao Zhenfang's journey was unimpeded, and the officials who came and went would stop and greet each other when they saw her.

  Xiao Shixuan saw such a situation, how could he not guess the truth?

  Zhao Zhenfang must be a family member of some high official!

  Don’t think that some researchers who do research have low EQ. They just focus on different things. In fact, they understand many things and don’t seem to care that much.

  Taking this moment as an example, although Xiao Shixuan guessed the truth, he didn't have any special thoughts. He just came to discuss academics, and he continued the chat if he was happy, and left when the chat was not happy, and he didn't ask anyone to do anything anyway.

"Miss."

   "Please inform me that I brought a big one back. This is his mathematics manuscript."

  Zhao Han was dealing with official business when he suddenly heard that his younger sister brought someone to see him. He first dug out those mathematics manuscripts, and was immediately attracted by various algebraic symbols, because they were born out of cursive script, and he could still recognize A, B, C, D after careful observation.

  Glancing casually, Zhao Han said, "Please come in."

   Not long after, three young girls brought Xiao Shixuan in.

"what!"

  Liu Miaotong covered her mouth immediately, she recognized Zhao Han at a glance, because Zhao Han once went to a girls' school to write an inscription speech.

  The identities of Zhao Zhenfang and Fei Rumei were neither kept secret nor publicized on purpose. Few people in the girls' school knew about them.

   "Second brother, Mr. Xiao is good at mathematics," Zhao Zhenfang said with a smile, "Mr. Xiao, this is my second brother. He introduced Taixi numbers."

  Second brother?

  Xiao Shixuan thought that Zhao Zhenfang was the daughter of some high-ranking official, but unexpectedly she was Zhao Han's younger sister. A surprised expression finally appeared on his face, and he cupped his fists and said, "Tai and Xiao Shixuan, meet Mr. Zhao."

   "Mr. Xiao, nice to meet you!"

  Zhao Han replied with a smile: "Please sit down."

  Xiao Shi chose a seat to sit down, subconsciously looked at Zhao Zhenfang, but Zhao Zhenfang winked at him mischievously.

   Zhao Han flipped through the mathematics manuscript and asked, "You discovered these formulas and theorems by yourself."

   "Occasionally." Xiao Shixuan replied.

   "Good job, keep working hard in the future." Zhao Han encouraged.

  Xiao Shixuan originally wanted to discuss mathematics, but after discovering that the person he was chatting with was Zhao Han, he immediately said: "Mr.

   "Oh, please tell me." Zhao Han felt a little surprised.

Xiao Shixuan said: "Take equations as an example. We only talk about the calculation of complex equations. It is easier to calculate when using Tianyuan technique together with calculation chips. But I am sure that even if Tianyuan technique is more convenient to calculate, it will definitely be used in the future. Equation algorithm instead."

  Using calculation chips to solve Tianyuan technique, as long as you get started, it is often easier than solving equations.

  Zhao Han asked: "Why do you say that?"

Xiao Shixuan began to talk eloquently: "The biggest difference between Tianyuan surgery and equations is the unknown number. "Nine Chapters of Arithmetic" Qiuhe is actually a description of three-dimensional linear equations in words, but there are no algebraic symbols and operation symbols. The ancients omitted these symbols, and expressed them directly with calculating chips (putting out a matrix). There is a strange book called "Dongping Suanjing", which has been lost for a long time now, but one or two can be inferred from Li Yezhi's works...Qin Jiushao in the Song Dynasty already used double symbols such as lines, single lines, etc. to represent addition, subtraction, multiplication, and division..."

  Zhao Han listened very carefully, although he had never even heard of these ancient arithmetic and mathematicians.

According to Xiao Shixuan's explanation, Zhao Han roughly understood that there is an ancient book "Dongping Suanjing", which uses nineteen characters such as "Xian, Ming, Xiao, Han... Shi, spring, dark, ghost" to represent unknown times. power. If A, B, C, and D are added together, equations within the nineteenth power can be expressed with the calculating chip matrix.

  In the Southern Song Dynasty, Qin Jiushao created arithmetic symbols.

  However, the invasion of Jin and Yuan brought the development of mathematics in the Song Dynasty to an abrupt halt.

  Although the mathematicians of the Yuan Dynasty came up with the quaternary technique, which seemed to be more advanced than the ternary technique of the Song Dynasty, it was a retrogression from the perspective of mathematics itself.

  Because of going astray, the unknowns are more and more ignored, the expression of expressions is increasingly ignored, and the operation symbols are completely discarded. Tianyuanshu has been completely reduced to mechanical calculations. It can be understood as a certain program compiled by a mathematician, and future generations can directly use this program to solve problems.

   Jin Guo mathematician Li Ye was afraid that the scumbags would not be able to understand the program, so he wrote a special book "Measuring Yuanhai Jing", which forced the calculation matrix to have actual meaning, which is tantamount to breaking mathematics away from abstract operations.

  Xiao Shixuan immediately noticed that Chinese mathematics was going astray after he got acquainted with modern equations.

  From the perspective of hundreds of years later, from the Han Dynasty to the Song Dynasty, the development route of Chinese mathematics was not a big problem, and there is still the possibility of developing higher mathematics.

   However, the invasion of the Kingdom of Jin and Mongolia led to a major regression in mathematical thinking.

   After finally introducing European mathematics at the end of the Ming Dynasty, the Manchu Qing came to do it again, completely blocking the development of Chinese mathematics.

  Xiao Shixuan said: "Traditional Tianyuan technique, the solution to four elements is the limit. But the mathematics of Zongzhen has infinite possibilities."

   Zhao Han, a liberal arts student, has long forgotten about high mathematics. He said with shame: "I just put forward some superficial ideas. My talent is limited. The development of mathematics requires the joint efforts of all people."

  Xiao Shi chose this nerd, and he seemed to be flattering all of a sudden: "Suiren's drilling wood to make fire is also superficial. How has he ever underestimated his merits?"

"Hahahaha," Zhao Han took out the "Mathematics" and "Geometry" that Xu Ying sent, handed them to Xiao Shixuan, and said, "From next year, all schools at all levels must study them. There is no problem with the first part of "Mathematics". You can compile the theorems and formulas you have discovered into the second half of "Mathematics."

  Xiao Shixuan was overjoyed when he heard the words, held the manuscript carefully, cupped his hands and said, "I will definitely do my best to compile the book!"

  Zhao Han asked: "Where is your native place?"

  Xiao Shixuan replied: "Taihe County."

  Taihe County was severely damaged by the rebel Sai Lubu. The gentry and nobles either fled or died, so Zhao Han stopped questioning the other party's origin.

   "Are you short of money?" Zhao Han asked again.

  Xiao Shixuan replied: "There is no shortage of money. The family returned to Taihe County and took back three shops and an oil press. My father is also the head of the criminal house in Anfu County. It is not inconvenient for me to live in my uncle's house."

  Zhao Han thought for a while and said, "Well, I'll give you an official position. You will be a doctor of mathematics in the Ministry of Education, and you will receive a salary according to the rank of a county magistrate. From now on, you can study mathematics at ease and don't have to worry about daily trivial matters."

   "Thank you, General Town!"

  Xiao Shixuan was very happy. He liked to read idle books since he was a child, and he has never been recognized by the world, but now he is valued by Zhao Han.

   What excites him even more is that before there was only a Ph.D. in the Five Classics, and now he is appointed as a Ph.D. in Mathematics, which obviously regards mathematics as an equally important subject as the Five Classics.

  The two chatted until the General Military Mansion got off work, and the girls almost fell asleep listening to it, and they didn't dare to leave early on their own.

  Finally, Zhao Han personally sent Xiao Shi's selection ceremony out of the house, causing the officials of the General Military Mansion to look sideways.

  After the pair of cousins ​​had left, Zhao Zhenfang smiled and said, "Second brother, have I done meritorious service this time?"

   "I remember you for a great achievement." Zhao Han said happily.

  Fei Rumei was puzzled: "Is knowing arithmetic a talent?"

  Zhao Han said: "This person not only understands arithmetic, but also has such knowledge at a young age. In the future, he will definitely become a generation of mathematicians."

   Zhao Han is still very confident about the development of Chinese mathematics, or the development of science. As long as mathematics is included in the imperial examination, with China's population base and the intelligence and intelligence of the Chinese people, it will certainly be able to catch up with Europe.

   What to do now is to sow the seeds and carefully cultivate the seedlings.

  Back to the inner house, it's not time for dinner.

  Fei Rulan greeted her with a smile: "What a good thing happened today, and I actually have a happy face."

   "You can see this?" Zhao Han couldn't help laughing, "I'm delighted to have a young talent."

   Zhao Han was very happy here, but Chongzhen was devastated by finances.

  At the end of the year, he finally found a place to start, because the salt tax was not collected.

  Since Chongzhen ascended the throne to Chongzhen for six years, the national salt tax owed more than 3.2 million taels, and the Lianghuai salt tax alone owed more than 2 million taels. At that time, all provinces were ordered to make up the amount quickly. Now that the three-year deadline has expired, some provinces still have not made up the full amount.

   Investigate severely!

  At the same time, this year's taxes are also in a mess, because there are military disasters everywhere, and local officials always ask for a year's delay in arrears.

   No taxation in case of military disaster?

  Then what money did the imperial court use to train troops and suppress thieves!

  Thus, provinces like Henan, Huguang, Nanzhi, Jiangxi, Guangdong and other provinces, while agitating for rebels and being pressed for taxes by the court, can only intensify their exploitation of the people.

  As for Shaanxi and Shanxi provinces, Chongzhen was too embarrassed to press them. These two places have suffered severe drought for ten consecutive years.

  In the tenth year of Chongzhen, the first thing the court did was to send a large number of tax censors.

   Chongzhen was also frightened by the eunuchs, and he dared not let the eunuchs collect taxes again. This time the tax envoys were all seventh-rank civil servants.

At the same time, Yao Yongji, the Zuo Buzheng of Zhejiang, Zeng Daowei, the Zuo Buzheng of Huguang, Chen Hongmi, the prefect of Suzhou, Han Wenjing, the prefect of Yangzhou, and Zhou Guangxia, the prefect of Huaian...Because they could not pay their taxes in full, they were deprived of their grades and positions, but they continued to work until After paying all the taxes, he will resume his official position.

  Ding Kuichu, who thought he had successfully escaped, was still being held accountable by the court because of Jiangxi's tax arrears for many years. This guy retired from his old age and returned to his hometown. Just after the Lantern Festival, he was arrested and sent to Beijing to be imprisoned for questioning.

  Then, Chongzhen and Zhao Han lost their mind together.

  The spring drought is severe across the country, and this year is destined to be a disaster year.

   On Zhao Han's side, the whole of Jiangxi was severely drought.

  From the beginning of spring to the end of spring plowing, there was no rain in Jiangxi's prefectures, and officials from all over the country even began to pray for rain.

  In fact, there was a drought in Jiangxi last year. There is only one sentence in "Ming History": "Nine years...Jiangxi is also hungry."

  In the ten years of Chongzhen, Shaanxi and Shanxi will not be mentioned. The most terrifying thing is that it spread to Zhejiang, which is the wealthiest place in the world: "Ten years, there was a great famine in Zhejiang, and father and son, brothers, and husband and wife ate each other."

   Followed by: "Twelve years, Liangji, Shandong, Shanxi, Shaanxi, Jiangxi famine. Henan famine, people eat each other."

   This is a nationwide severe drought, known as the "Chongzhen Great Drought" in history, and the drought in Jiangxi will last for three to four years.

  The time to test Zhao Han has come, the disaster is far more difficult than officers and soldiers to deal with.

  (end of this chapter)