After the fourth master and I wear each other [Qing wear]

Yinzhen seems to be very moved by the starling's choice, but also guilty of making such an embarrassing choice.For this reason, it seems that Yinhu took the initiative to expose this matter, so that Yinhu would pretend that he had never heard of such an outrageous multiple-choice question.

With this step, the atmosphere seems to be able to re-harmonize.

Guo Luoluo is also in a good mood. Although Yinhu did not choose to save her, being able to die for her is enough to prove that he is sincere.

When he was in a good mood, he treated Lao Jiu a lot more pleasantly. "Ninth Brother, I have wronged Concubine Yi this time. It's because I didn't do things well. I will definitely enter the palace tomorrow to apologize to the empress."

Yinhu secretly breathed a sigh of relief, it would be great if Fujin and the ninth younger brother could talk properly.

He also immediately helped persuade Yinzhen to calm down, "Next time, I will definitely take care of Fujin to act cautiously. Tomorrow, Fujin and I will go to apologize to Empress Yifei."

"Brother, I think it's time to slow down the matter of entering the palace."

Yinzhen said it helplessly, but it seemed to be sincere.

This is a wry smile and said: "Er Niang is in a fit of anger, and she has indeed lost her appetite recently, so don't go into trouble for the time being. Otherwise, with Er Niang's tough temper, she was only three points angry, and seeing you come to the door will become eight points." anger."

Concubine Yi has a straightforward temperament, and her anger comes and goes quickly, but it is not suitable for her to hang around in front of her when she is angry.

This is a summary of past experience.

Yinhu often made Concubine Yi angry, and Yinhu also noticed it.

At this moment, after hearing these words, Yinhu did not want to provoke Concubine Yi to lose her temper.

"Well, after waiting for a while, Fujin and I will enter the palace together. It's time for lunch, let's eat together first. Later, you can bring back a few good furs. It's my birthday gift for you in the Mulan paddock. .”

"Thank you starling, I have my cloak for this winter."

Yinzhen thanked her with a smile, but she was thinking about what Concubine Yi said the day before yesterday.

At that time, Concubine Yi predicted that if Yinhu was told to enter the palace, her anger would increase, and this person would definitely not insist on apologizing as soon as possible.

As everyone knows, sometimes anger can be avoided strategically, and sometimes it can't wait for a while to apologize.

Innocuous small mistakes can wait for people to get over their anger, but how can mistakes of principle or damage to great interests make the sufferer wait.

Concubine Yi put it bluntly, if Lao Ba and his wife came to see her, she would definitely not give her a good face, and it would be rare to leave him alone at the door for an hour or two.

Even if he knew that she would get angry, even if he came to the door during this period of time, he would anger and offend her, but it was not a reason for Yinhu and Guo Luoluo to avoid coming.

If you do something wrong, you should have the courage to face it directly, and you must have the sincerity of Cheng Men Lixue to let her extinguish the fire, instead of delaying the situation until the situation subsides.

Don't want to offend people, being slick is a kind of strength.

But too much is too much, if you are too smooth, you can't treat people with sincerity, which is not a kind of lack of responsibility.

Concubine Yi told her youngest son to try it if he didn't believe it, to see how Yinhu reacted, and whether he was willing to enter the palace immediately to face several times of anger.

When Yinzhen heard her mother's suggestion, she didn't feel tempted at all.

The world is unpredictable, today is not yesterday.I asked questions that I would not have asked, and said words that I would not have tried.

Telling the starling to enter the palace that he might face Concubine Yi directly would double his anger, but the starling really avoided it.

Is this Yinhu believing in her words enough?Or is there not enough apology sincerity?

Yinzhen is sure that if it is changed to the fourth brother, he will never postpone the apology because of this, and it is very likely that he will be disciplined in turn, so that he must face up to his mistakes.

People are always different, and nothing stays the same.

I don't want to admit it anymore, but the truth is in front of me.

He and the starling had crossed paths, but when he realized it, he didn't want to turn back.

Yinhu had given him the brotherhood he longed for, and it's not that he doesn't care about him now, it's just that there are too many other factors mixed in.

Guo Luoluo's family is certainly the lead that detonated the problem, but as Yin Qi said, the problems with the Eight Fortunes were also indulged by Yin Hu.

Yinhu never corrected Guo Luoluo, and never expressed any clear objection to his arrogant temperament and disrespect for other people's wishes.

If the relationship between the husband and wife is not good, it can be said that the persuasion has no effect, but no one can see that Guo Luoluo can be coaxed by the old eight.

Starlings care most about their own interests.

The reality is like pouring a bucket of ice water on the head, making Yinzhen's teeth chatter and cold to the bone.

It is true that people plan for themselves, but being too selfish is chilling.

Especially when you think that the two of you are so close that you don't know each other, and you are willing to stab this person in both sides.

He ignored your real needs again and again, and stabbed you in the back with his backhand.He couldn't get a sincere apology afterwards, and this person would only give what he thought was appropriate.

When she deeply realized the difference between Yinhu and Yinhu's treatment of each other, no matter how careless she was, she didn't want to turn back.

Today's lunch at Baye's Mansion had the same atmosphere as before.

When leaving, Yinzhen turned her head and took a deep look at the gate of Lianjun Palace.

He is so familiar with this place that he can clearly point out which tooth of the stone lion has a small black spot.Today, he suddenly found that this place was too strange, so strange that he lost the slightest nostalgia.

In the past few years, I have had real happiness by myna's side.

Then he didn't ask Yinhu how much real money it cost him to make friends with Yinhu who was able to become the king of Lianjun, and he just treated it as money and goods.

"Master, don't you want to take a carriage?"

Xiaoluzi found that Master Jiu didn't go in the direction of the carriage waiting on the side of the road. Did he go somewhere else?

"I ate a little too much. I'm going home today to digest my food."

Yinzhen was talking in a waned mood, but step by step she was getting farther and farther away from Baye's mansion.

The autumn leaves are yellow.

It turns out that the real determination to stay away from a person is silent.

No quarrels, no longer calculating past gains and losses.Because of this, there is absolutely no possibility of turning back.

There would be no leisure for him to be sentimental in the next few months.

Not to mention the opening of the Royal College of Science, it is even more necessary to clean up and reorganize the industries under him, and carry out a batch of major changes.

The only reaction to Guo Luoluo last month was to warn all his subordinates not to follow Bafujin's orders, but now he realizes that he must separate himself from Yinhu.

The whole process will definitely not be easy, but if you are determined to do it, you don't have to be afraid of difficulties.

In the early years, Kangxi did not give any support and even suppressed him to start a business, and he did not let him do it under pressure.

Things are better now than they were then.

Besides, if you are interested in studying the topic of unified coinage, you might as well take this opportunity to kick out the local managers and partners who are not dedicated.

People have to be busy.

Busy, no time to mourn or the brotherhood that has deteriorated and disappeared long ago.

**

**

On September 25, the Royal College of Science officially started teaching.

It should be said that Kangxi did not decide the list of trainees in an unambiguous way in the end.

At the beginning of September, he first released the class schedule.

Classes are held 24 days a month, two and a half hours each time, and there is a half-time break for a stick of incense.The first semester lasts for two and a half months and ends on the eve of the Spring Festival.

The reason why the time required for the course is clarified first is that the list of the first batch of students is determined by voluntary registration.

Simply put, the source of students is divided into two parts.

A group are the sons and daughters of clan relatives Xungui who are required to take part in the preliminary examination.

In addition to the special approval of the emperor to reward King Yongjun for his excellent grades, he does not need to attend classes, and he also gives other people the right to choose whether to take the initiative to study.

Pass the booklet and write to the emperor why he didn't come.

Because you are busy with official duties, you really don't have any interest in mathematics, physics, physics, etc., as long as you dare to write for various reasons.

The choice is only once.

Now I don’t dare to tell the truth to the emperor. I will definitely be severely punished if I make mistakes such as leaving early, being late, and not completing homework carefully.

In addition to this group of students, there are also private enrollments.

After the preliminary examination in mid-May, the imperial court released the news.

Scholars who have a preference for mathematics and science can go to Beijing through the recommendation of the state and county, as long as they can pass the test in late August, they can enroll together.

The number of places in each prefecture and county is limited, because of geographical transportation restrictions, some people will not be able to rush to the capital in time, so they can only wait for a chance later.

In early September, the list of students is finally released.

Of the students who had taken the test, only two did not come.Both the boss and the prince said that they had too many government affairs in hand and could not guarantee to attend classes on time.The rest may have the intention of skipping class, but they don't have the guts to tell the emperor directly.

Kangxi approved Yinti and Yinreng's applications without saying a word.

On the other hand, there are more folk candidates than he expected.Even though it had been predicted that some people would be willing to apply for the Faculty of Science because it was a way to make friends with the elite in the capital, it was unexpectedly discovered that there were quite a lot of people who passed the exam.

As the saying goes, the master lies among the people.

The 53 scholars who passed the test all had one characteristic, that they performed mediocre in the previous imperial examinations, and their stereotyped essays were not very good.

Perhaps, this is the specialization in the art industry.

Kangxi specially arranged an additional test, where he would write questions on the spot and mark the papers on the spot.

After the additional test, all the high-scoring candidates passed, indicating that their scores were true before, and there was no substitute test.

Although the total number of students exceeds expectations, there is no difficulty in adding more than 30 seats.

As for the textbook, it was compiled by "Wusanshanren".

After Kangxi checked the school, he found that this set of books could not be printed in batches within half a month.

Because movable type printing needs a template corresponding to the "character", and the content of the teaching materials submitted by the fourth child is completely different from the previous classical Chinese, so we can only order people to copy the books by hand.

In the teaching materials, the fourth child has abandoned the large text descriptions in traditional mathematics books for thousands of years, and introduced simple and easy-to-understand symbols and numbers.

For example, the answering method in "Nine Chapters of Shu Shu", "Seek it with less. Use the small oblique power and the large oblique power, subtract the middle oblique power, and multiply the remaining half by itself; multiply the small oblique power by the large oblique power , minus plus, the remaining four approximations are real; one is from the corner; the square is extracted to get the product.” ①

This kind of text description and problem solving can be replaced by simplified symbols, letters, and formulas.

The symbols and formulas refer to Western books, but there are also self-innovations.

Because some symbols are widely used in Western books, but there are also some symbols that have not reached a consensus in the West.For example, for the expression of the multiplication sign, Leibniz of Germany thought to use "·", while Okutt of England thought to use "x".

These uncertain parts are left to Kangxi to make the final decision.

The emperor wants to replace all the symbols with what he likes.

King Yongjun only put forward a core idea. The purpose of compiling textbooks is to allow more people to understand mathematics, so it is most important to be easy to understand.

Kangxi wanted to create and show the invention of mathematical symbols in the Qing Dynasty, so he had to abide by the Basic Law. The symbols created should be easy to understand and easy to distinguish. For example, the multiplication sign and the plus sign cannot be confused.

At a glance not only symbols, but also expressions for counting.

It is better to use Arabic numerals to count more strokes in words.

As early as hundreds of years ago, books with Arabic numerals were introduced in the Song Dynasty, but they were never popularized.Even when translating Western books in the late Ming Dynasty, Arabic numerals were expressed in Chinese characters.

Between 111 and [-], it is clear at a glance which one is clearer and easier to read, but it involves writing rules.

The characters and numbers in Western books are typesetting horizontally, and the Qing Dynasty inherited the book method of previous dynasties to write vertically.The Arabic numerals written vertically are not as clear as written horizontally.

Taking 111 as an example, three "1"s are easily connected into a line, which may cause calculation errors.

Do you want to change part of the writing style?

The final decision rests with the emperor.

Kangxi asked the fourth brother how to compile teaching materials from the very beginning.

At the end of May, the defendant was informed of the transformation concept of these symbols, formulas, and numbers. The main idea is to replace complex narratives with simple expressions.

Even if I gave the approval personally, I was mentally prepared, but I was still surprised when I saw the finished textbook.

After reading and understanding, first read the book thicker and thicker, and then read it thinner and thinner.

From thin to thick, there is perseverance to accumulate continuously.Then from thick to thin, it is a summary after a real understanding.

Kangxi flipped through the textbooks, and couldn't help admiring that the fourth child not only learned it, but also came up with a way to teach others to understand it.How deep the students can learn depends on the individual's hard work and different talent values.

As for the mathematical expression reform involved in the teaching materials, the fourth child was given affirmation and support.

I also saw the actions of the fourth brother who dared to challenge his determination and put it into practice when faced with cumbersome and difficult problems.

In the end, Kangxi decided that the Mathematics and Physics Books should be typeset horizontally.

So what if it is different from the layout of previous books, and it is not the first time to break through the tradition.

Unlike Chinese characters, which are written from right to left, Manchu is written from left to right.Already changed direction once, so why not come again.

That being the case, due to the innovation of the teaching material content, it poses a challenge to the lecturer.

The originally planned start of school at the beginning of the month was postponed for half a month until the official start of teaching and learning in late September.

At the end of September, another matter also settled.

This draft is over.The 15-year-old Zhao Jia, the daughter of the Minister of the Ministry of War, was accused of giving Yinxiang the Thirteen Fujin.

The wedding of the two is scheduled for the beginning of November this year, and there is only more than a month left to prepare, but they are not busy at all.

Because if the thirteenth elder brother hadn't kept his filial piety for three years, he would have gotten married long ago.

The preparations for his wedding can be said to have been prepared long ago.The most important of these is the mansion, which can be moved in with bags in September.

The final supervisor was in charge of Yongjun Wang.

Kangxi took the time to take a look. The thirteenth mansion was built well, and the supervisor of the fourth child was in place.

But he thought unkindly that the fourth child might have troubles recently, which was caused by the good construction of Yinxiang's house.

The second day of October, the first holiday of the Faculty of Science.

Yinzhen doesn't need to go to class. Although he has to assist in the promotion of vaccinia vaccination, the vaccination system has been perfected for more than a year, and there are usually no important matters to deal with.

Hearing the exact news of Yinxiang's marriage, he should also go to congratulate him, and take a look at Shisan's mansion in advance.

During this visit, Yinzhen was extremely wronged.

The most eye-catching thing in Thirteenth Prince's mansion is the full set of glass window decoration. It is said that this is a branch of the mansion and a wedding gift for Yinxiang paid by King Yong himself.

It was two years ago that large glass windows first appeared in the capital.

The king of Yongjun was stationed in the glass factory and came up with an improved formula to realize the exquisite glass windows that the Qing Dynasty could make by itself.

Because of the popularity of glass windows, the emperor specially opened a branch factory specializing in the production of large glass.

Even if the branch glass factory has been open for a year or so, the supply of glass windows is still in short supply, and the price remains high.

As the creator of improvement, King Yong must enjoy certain privileges.

Who would he send a full set of glass windows to? He would be the second in the order, and the first would be to make the emperor's order.

However, in the whole capital or in the Qing Dynasty, it was more or less heard that King Yong was cold-tempered.

Let him take the initiative to give gifts, or give high-profile glass windows, and the number of people can be counted by wrenching fingers.In the past two years, Zong Yong has given away only one person - De Fei.

The glass windows of Kangxi and the Empress Dowager were not given by King Yongjun, nor by other princes.

This was Kangxi's will. The glass from the Qianqing Palace was taken from the emperor's private treasury without the need for a gift from his son, and the empress dowager also went from the emperor's private treasury.He wanted to be filial and not let his sons take the lead.

Don't give gifts, but be filial.

Kangxi gave such a reason, in fact, has another meaning.

The cost of glass windows is low, and he is one of the few insiders.But the price of this thing is extremely high outside, if his sons buy it, do they want to return the gift?

The emperor also had to return the gift.

It's not necessarily out of courteous reciprocity, but sometimes it's time to return the courteousness, which will be considered as having a problem with a certain person.

Knowing that it will be complicated, it is better to pay for it from the beginning.

Kangxi had heard the report from the fourth child in advance, and he also agreed to install a full set of glass windows for the Shisanjia.

The purpose is not only to celebrate Yinxiang's marriage, but also to take the opportunity to promote the idea of ​​glass windows.Let more people buy, this fund is used to promote vaccinia vaccination and other infectious disease prevention and control.

Of course Yinzhen didn't know the inside story, he was so sore that his teeth hurt.

Fourth brother, he is obviously his own brother, why is he treating Thirteen better than him?

The fourth brother also supervised the construction of his mansion.

Is it because the Fourteenth Mansion was completed earlier than the Thirteenth Mansion, and the time did not catch up, so we could only helplessly miss the generous gift of a full set of glass windows?

Yinzhen seemed to have drunk the old vinegar from a whole lotus pond, and rode his horse directly towards Zhuangzi in the northern suburbs.

After entering Zhuangzi, he kept urging the attendant to pass the pass.

Finally, I waited for the reply, saying that the king of Yongjun was enjoying the scenery by the river, and asked the Fourteenth Master to speak there.

Yinzhen's footsteps were fast and anxious, and he overtook the attendants leading the way in two or three strokes.

Close to the river bank, I can see the fourth brother under the big tree by the river from a distance.Regardless of the fact that there was still a long distance between them, he began to yell.

"Fourth Brother!"

Yinzhen yelled: "You have hurt my brother's heart. I only see the newcomer laughing, but not the old one crying. Tell me, how many good brothers do you have?!"

Under the big tree, Wu Fuyi didn't expect Fourteen to howl like this.

She immediately looked at Yinzhen on the other side of the tree, her expression couldn't be more obvious. "Why is your brother like this? You must have gotten used to such a bitter and jealous Fourteenth."

Yinzhen:!

He has to say it several times, and he has never done many things.

The author has something to say: ① The title of the second volume of the fifth volume of "Nine Chapters of Shushu" written by Qin Jiushao is: "Ask Shatian section, there are three obliques, the small oblique is [-] li, the middle oblique is [-] li, and the major oblique is one. Fifteen miles. Three hundred paces. If you want to know it, it's Tian Geometry."

The method he gave: "The technique says: Find it with less and more. Take the small oblique power and the large oblique power, subtract the middle oblique power, and multiply the remaining half by itself; multiply the small oblique power by the large oblique power, subtract the , and the remaining four conventions are the reality; one is the corner; the square root is the product.”