He Xinyin is from the Taizhou School, and Xu Guangqi and Xu Guangqi's teacher Jiao Hong, as well as Jiao Hong's teacher Geng Xiangxiang, are also from the Taizhou School.

The origin of the Taizhou school is Wang Shouren's disciple Wang Gen, Wang Gen also said, my body is a moment, the world is a square, the body is the body, the world is the end, but after Wang Gen said this, he immediately said: If you are right, you will know that the party is not right, and if you are not right, you will rule the root and the end, and you will be right, and you will be right, and the righteous person must first correct yourself.

Moment, measure.

If you measure yourself, you can know whether the world is right or not, and if the world is not right, then because each individual is not right, as the foundation, everyone manages themselves well, and the world can be governed, so if you want to be right, you must first correct yourself.

But most of the Taizhou school of Taizhou school very much like to play out of context, the disciples of the Taizhou school, like Wang Shouren's disciples, Wang Shouren's disciples removed the unity of knowledge and action and conscience, and He Xinyin removed the rules of the Taizhou school.

Wang Gen also has many concepts, such as the idea of simplicity and equality: the common people are not inferior, and the Hou Wang is not high; Yao Shun and passers-by one, saints and mortals one; The saints have never been high, the people have never been low, and the people have used the Tao every day.

What is a saint and how do you judge the criteria for a saint? The people's daily use of the rules is the rules of the saints.

This is Wang Gen's standard for saints, but what about He Xinyin's standard? He Xinyin's standard is that the saint is myself, and I will appoint the world to lead the teaching, the leadership, and the management of the world.

"Wang Sikou, the court is not a child's play." Zhu Yijun rejected Wang Chonggu's plan to go back, since Wang Chonggu got the ministerial proposal of the ministry, and got it to the court meeting for pushing, and finally became a minister, Zhu Yijun did not make a mistake, Zhu Yijun would not 'demote' him back to the place for no reason.

Wang Chonggu knelt on the ground, and his mood was a little complicated for a while, on the one hand, he found that the little emperor and Zhang Ju were the same people, that is, they did things according to the rules, which was what his son Wang Qian always emphasized: life and death are in the hands of the gentleman, which is the blessing of the world, and in the hands of the villain, the world is very harmful, and Wang Qian also showed Zhang Siwei his villain style;

On the other hand, Wang Chonggu really wants to go back, the pool of water in Jingshi is too deep, and there is an old monster Zhang Juzheng and a little monster Emperor His Majesty, if you are not careful, you will lose everything.

"Commandment." The emperor refused to let him go, and he could only kowtow to continue the court discussion.

Wang Xiyuan played the matter in the matter, asked to pass the test, and after writing the draft list, he opened the bottom book to fill in the list to put an end to fraud.

Wang Xiyuan's book, Zhang Juzheng didn't finish reading it, and Wang Xiyuan was talking about the problems of the Ministry of Officials.

The promotion of the officials to the Jingtang is to be promoted from the magistrate to the Jingshi, not to see the ability, but simply to see the soft familiarity of Yia, completely relying on flattery and human relations, the Jingtang is broken, can the world still be good?

And in local affairs, the greedy and cruel preside over the important places of China, without any credit to the court, just because of flattery and favors, you can choose your own place, such a ministry is the ministry of the court, or the ministry of the Jin party?

This is no longer an ordinary accusation, but an inquiry.

Zhu Yijun said with a puzzled face: "Sir, this book of Kechen Wang Xiyuan, the micro-text alludes to a lot, and the impact is suspicious, what does it mean?" Who is he talking about? ”

Let's be clearer.

Zhang Juzheng replied: "Wang Xiyuan is questioning the secretary of the Ministry of Officials Zhang Han recommended Wang Chonggu as the secretary of the criminal department, and the minister of household punishment is the minister of the Ming Dynasty, and Wang Xiyuan is the minister of the eyes and ears, and the ears and eyes hurt the vitality and are not conducive to the dynasty, so he did not say it, but the officials were admitted to the Ministry of Officials in the middle of the matter and found these problems. ”

"Especially in the local affairs, Yia is soft and familiar."

Wang Chonggu's face was bitter, Zhang Han and Zhang Siwei didn't ask his opinion at all, he didn't think about coming back to this troubled water.

Zhang Han hurriedly shook his hand, knelt on the ground, and bowed his head and said, "Chen Cheng is guilty." ”

Wang Xiyuan is the thirteenth in the third class of Longqing in the fifth year, and he is the official selected by Zhang Juzheng from his own door, Zhang Juzheng's subordinates speak and do things, most of them pay attention to real evidence, and Wang Xiyuan is not the first time to communicate with the Ministry of Officials about this matter, before Wang Xuanshou, the chief secretary of Ruian County, Zhejiang, was promoted to the order of Ruian County, and the officials found that this person failed to pass the examination, but he was promoted.

After a little inquiry, this Wang Xuanshou took a heavy bribe and took Zhang Siwei's way. Jingtang and localities, so appointed, whose officials are the officials?

Zhu Yijun suddenly thought of Sun Piyang's lottery method, and after Sun Piyang was appointed as the secretary of the ministry, he used the lottery method to do things.

"Sir, what kind of government is it that the governors of various places are asked to inspect and inspect the subordinate officials, and they will be on the list? And what is the intention? Zhu Yijun ignored Zhang Han's plea, but asked Wang Xiyuan for the solution.

Zhang Juzheng bowed his head again and said: "Your Majesty, good officials are not specialized in the first branch of the Jinshi, and the first branch may not be good officials, all officials who are qualified in the examination should be recommended for appointment, rather than looking at qualifications, looking at favors, to see if it is anyone's disciple, if it is just according to Yia soft familiarity, this method of employing people will only make the officials of the world not seek merit, but seek no fault, and the officialdom is as lifeless as a tomb." ”

"The method of obfuscating the name is to put an end to the disadvantages of the world's appeasement."

"Wait until the list is published, and then fill in the name with the bottom book, just like the imperial examination is pasted."

Zhu Yijun pondered for a moment and said: "Sir's method of employing people, isn't Mr.'s Zhang Dang also familiar with A's softness?" ”

"Your Majesty." Zhang Juzheng was silent, His Majesty made it too clear, it is true, after the fame is obscured, the Zhang Party under his door will also be affected, and those people who are closely united around him will also leave part of it at that time?

But Zhang Juzheng still explained this trick in detail.

"What does Da Sima think?" Zhu Yijun looked at Tan Lun and asked the opinion of the leader of the Zhejiang Party.

Tan Lun looked like he didn't care about himself, looked at Zhang Han who was kneeling on the ground and trembled, and then looked at Wang Chonggu's face with a bitter face, and when he heard the emperor's inquiry, he immediately said loudly: "The minister has no opinion." ”

"Ministers are mostly officials for conquest, between this army, don't kill the enemy, don't win battles, and still want to be a general? That's impossible, the front line will not deceive people, losing is losing, winning is winning, and the rules for celebration and punishment are clear and clear. ”

"The method of faming the name, the minister thinks it is very good."

Zhu Yijun looked at Ge Shouli and asked with a smile, "What does Mr. Ge think?" ”

"The minister has no objection." Ge Shouli thought about it for a while, and agreed with Zhang Juzheng's method of obfuscating names, not that Zhang Dang himself is not obscured, and other fames, since they are all fames, that is, to formulate the rules of the game, the rules that everyone must abide by, and he has no objections.

"What do you think?" Zhu Yijun looked at Zhang Han and said.

Zhang Han knelt on the ground and said stubbornly: "The minister thinks it's inappropriate..."

"Oh, no." Zhu Yijun said with a smile: "Mr. Yuanfu once told me that the ministers should tell you that it is true, how can it be vague? Let Wang Xiyuan make it clear that he didn't explain the vernacular, and promote the Jingtang place, but according to who Ah Ruanshu is, to be honest, he is not allowed to support me. ”

"I think it's very appropriate!" Zhang Han immediately bowed again and shouted loudly, don't ask, don't ask, ask if you really ask something, how is it?

Wang Chonggu was standing in the court hall in a swaying manner, is there any ironclad evidence than this?

"Let Wang Xiyuan tell the truth, I will see if it is the minister of the eyes and ears who is slandering the minister of my Ming Dynasty, or whether my minister of the Ming Dynasty is hollowing out the Ming Dynasty." Zhu Yijun ignored Zhang Han and hit the south wall, do you know that he turned a corner? It's late!

Zhang Juzheng took out a notebook and looked at Zhang Han, to be honest, he didn't plan to do anything to Zhang Han at all, Zhang Han was the official secretary of the imperial court, not his Zhang Juzheng's official secretary.

Zhang Han does not do things for the imperial court, and Zhang Juzheng is not upright.

Zhang Juzheng didn't want to tear his face, let alone attack Zhang Han, Zhang Han recommended Wang Chonggu, Zhang Juzheng wanted to engage Zhang Han, this is not doing things, it is to exclude dissidents, so he just wants to scold, Zhang Han does things well, most of the courtiers in the court and the central government have passed Wang Xiyuan's method of obfuscation, the three party leaders agreed, and Zhang Han disagreed.

Motosuke took the hand and said in his hand; Wang Xiyuan said: Guo Liang, the governor of Shandong, was impeached, and he planned to transfer Guangdong; Guangxi Huo and the flawed investigation was not in time to return to Jiangxi; Hu Zhengen elected Guiyang County Cheng, Sima Zuo elected Jianyang County Cheng, Zhu Bing elected Pucheng County Cheng, Kechen Han Ji, and Minister Liu Bo are already intolerable to public opinion, and it is inevitable to investigate. ”

"Ah, this..."Zhu Yijun looked at Zhang Juzheng, this Yuanfu's ammunition is too sufficient, look at this long list!

Zhu Yijun looked at Zhang Han and asked with a smile: "Zhang Shangshu, is it Wang Xiyuan who falsely accused you?" ”

"Yes or no?" Zhang Han said in a daze, he thought that there were only one or two names, but Zhang Juzheng had already checked him out! All the things he did were seen by Zhang Juzheng.

Zhu Yijun almost laughed angrily when he heard this, and asked with a sneer: "What about you, do you ask me?" Whether you have done it or not, whether there is any disadvantage of bribery and appeasement, you know it yourself, where do I know it? ”

Zhang Han raised his head and looked at Wang Chonggu, wanting Wang Chonggu to say a fair word, but Wang Chonggu turned his head and didn't say a word, Zhang Han looked at Ge Shouli again, Ge Shouli looked at his nose and nose and heart as if the old monk had settled down, and he didn't know, when he should pretend to be confused, he had to pretend to be confused.

Zhang Han looked at Wan Shihe, the secretary of the Ministry of Rites, and hoped that Wan Shihe could help say something.

Wan Shihe thought about it and bowed his head and said: "Your Majesty, the minister thinks that this method of pasting the name is good, this bottom book can't be in the Ministry of Officials, otherwise this bottom book is filled in the draft list of the Ministry of Officials, it is just a formality, the minister thinks that this bottom book, after being submitted to Beijing, don't send it to the Six Branch Corridor, Wenyuan Pavilion, and the Master of Ceremonies, and send it directly to the Wenhua Palace, and put it in front of this official book screen." ”

Wan Shihe pointed to the fifteen-page official book screen, and said very solemnly: "Just put it here, add a box and lock it, Your Majesty, everyone is watching, so many courtiers are watching, the master of ceremonies is watching, Your Majesty is watching, when the time comes, the grass list will be announced, please put Your Majesty's holy decree and open the bottom book again." ”

"Wan Shangshu, who keeps the key to the lock of this book?" Zhu Yijun looked at Wan Shihe and asked calmly.

Wan Shihe said as a matter of course: "Of course, it is kept by His Majesty!" That is, what the minister said, when the bottom book is opened, please ask Your Majesty to open the bottom book again. ”

"Your Majesty, a seal should be affixed to this box, and the official secretary, Yuan Fu, and the celebrant should sew the ribbon together."

If this box is moved, the officials, Yuanfu, and the celebrant are all henchmen of that person, then the Ming Dynasty should die, and no one will know if the emperor is replaced tomorrow.

Zhu Yijun was stunned, he admitted that he had some prejudice against Wan Shihe, and he thought that Wan Shihe, the key to this lock, wanted to carry it in his own pocket, and it was not unusual to compete for fame and fortune, who would be too little for power? Taking a little authority is a little authority.

"Uncle Zong, thoughtful." After hearing about it, Zhu Yijun affirmed Wan Shihe's proposal and praised Wan Shihe's work for the first time.

"The minister is ashamed, Your Majesty praises falsely." Wan Shihe finally breathed a sigh of relief, and his Shangshu of the Ministry of Rites was finally called Dazongbo, not Wan Shangshu.

Wan Shihe looked at Zhang Han and asked calmly, "Zhang Shangshu, what do you think of my idea?" ”

Wan Shihe helped Zhang Han, and he could only help here, Zhang Han said that he didn't agree, then no one could save him.

Zhang Han was silent for a long time, knelt on the ground and said, "The minister implores Zhishi to return home." ”

"Yes, Mr. recommends someone to do the job." Zhu Yijun didn't hesitate, and directly approved Zhang Han's Zhishi, taking retreat as advance? Then just get out, if you don't want to do it, some people will do it!

Daming is full of boomerangs, the powerful and wealthy gentry use this sentence every day to criticize the small people, Zhu Yijun also uses this sentence to criticize the minister, Zhang Han himself is the heavenly official of this department, which is the result of the compromise between Zhang Juzheng and Yang Bo, so now Zhang Han is leaving, so why does Zhu Yijun stay?

"Your Majesty, the minister is the minister of the Ming Dynasty, the secretary of the criminal department has just been sent to Shi, and the secretary of the Ministry of Industry Zhu Heng has just been dismissed. The appointment and dismissal of ministers are so frequent, which may lead to a lot of discussion and hurt the vitality of the Ming Dynasty. Zhang Juzheng spat out a turbid breath and bowed his head again to intercede for Zhang Han.

Wang Chonggu has confirmed very much that Zhang Juzheng is protecting the courtiers at all, without Zhang Juzheng's backing, the little emperor's merciless approach, the emperor can change the emperor if he is disobedient, but this emperor is under the heavy protection of Zhang Juzheng, Qi Jiguang, and Feng Bao.

How to change? Like He Xinyin?

"Sir." Zhu Yijun was a little unhappy when he saw Zhang Juzheng interceding with Zhang Han, Zhang Juzheng was still too conservative.

"Your Majesty." Zhang Juzheng bowed his head again, His Majesty was still too aggressive.

It is child's play to appoint people in the country, and the criminal department, the Ministry of Industry, and the Ministry of Officials change their heads so frequently, which is going to cause chaos.

"Then according to the gentleman." Zhu Yijun didn't care and said, just this round of dumping, what did Zhang Han do to fight with Zhang Juzheng? Anyway, he is not pro-government now, and if Zhang Han has any problems, it will be Zhang Juzheng's back.

Zhang Juzheng flicked his sleeves, made a big bow respectfully, and said quite sincerely: "Thank you, Your Majesty, thank you." ”

"Sir's words are serious, please get up quickly, please get up quickly." Zhu Yijun hurriedly said.

"Thank you, Your Majesty." Zhang Juzheng stood up at this time, looked at Zhang Han and said, "Zhang Shangshu, it's better not to object to things that the court and courtiers agree on." ”

Don't be ashamed again, Zhang Juzheng really turned his face, Zhang Juzheng's round of attacks was just to make a name for himself, not to get Zhang Han out, Wan Shihe made up for it ruthlessly, and directly put the bottom book on the Wenhua Palace, appeased? Is it soft? Don't think about it.

Seeing this, Zhang Han could only say helplessly: "The minister obeys the order." ”

The court discussion is still continuing, and it is still a big event, the night does not collect the Tang report, the barbarian department is ready to move, for last year's Ming Dynasty conquered the Gule Village, angry, ready to retaliate, the war in Liaodong, is about to break out.

Li Chengliang, the chief military officer of Liaodong, said to the imperial court: Prepare to fight again, and when it snows, you can cut off one of your fingers again.

Why do you have to wait for the snow, is that you are afraid that the other party will run away and will not be able to achieve the strategic intention of cutting off one of its fingers.

"Is Ning Yuanbo so confident?" Zhu Yijun looked at Wang Guoguang and asked, "Is there any salary arrears this year?" ”

"Returning to Your Majesty, there is no arrears." Wang Guoguang said with a red face, the household department bought silk for the officials of the Ming Dynasty to make official clothes, which was built after making up for the arrears, three years, three whole years, these three years Wang Guoguang, the household department of Shangshu, in order to fill the previous holes, turned around in every possible way, today, finally can tell His Majesty in a dignified manner, there is no arrears.

Li Chengliang's confidence also comes from this, the fully paid Ming army, the barbarians, the slaves, what to fight with the Ming army!

When Zhu Yijun heard this, he said with a smile: "It's good if you don't have it, since Yongle, the rewards for the conquest are all out of the house, so give Ning Yuanbo an order, if you fight well, you will be rewarded, and if you don't fight well, you will inevitably be punished." ”

After the court discussion, Zhu Yijun did not start the banquet directly, but took Zhang Juzheng to the side hall, the thick curtain of the side hall opened half of the door, and the little emperor looked at the person standing next to a strange musical instrument, and said with a smile: "Uncle Huang." ”

"See Your Majesty, is Your Majesty safe?" Zhu Zaiyu hurriedly saluted, and the apprentice next to him, Wang Yaozhuo, knelt on the ground and bowed five times and bowed three times.

Wang Yaozhuo thought that the emperor had upheld justice for their family and washed away the grievances, so he bowed down like this, the viciousness of the Lu family in Shaanzhou was self-inflicted, and the local left senators couldn't bear it, even if there was no Wang Yaozhuo, they had to be dealt with.

Zhu Yijun asked Wang Yaozhuo not to slam like this every time, but Wang Yaozhuo insisted on making a big salute.

"Uncle Huang, what kind of musical instrument is this?" Zhu Yijun looked around this strange instrument and asked suspiciously.

Zhu Zaiyu looked at the musical instrument in front of him and said confidently: "Your Majesty, twelve rhythms and eight phases, seven tones and five phases, each with seven tones, and twelve all have eighty-four tones. ”

"Uncle Huang can not talk about music theory, I don't understand." Zhu Yijun asked with a smile: "So, what is it?" ”

Zhu Zaiyu actually wanted to say that he could learn if he didn't understand, but His Majesty was tired of learning music theory, so he had to solemnly answer: "It's just a musical instrument!" ”

"At the beginning of the minister's use of the strings, I found that the strings are eighty-four tunes, which are really a little difficult to play, too wide, and easy to touch by mistake, so the minister made this metal string soundboard, the palace is transposed, in this key, there is a copper shaped mallet to strike the strings, it has eighty-eight keys, if it is transposed, it can be one hundred and eight keys."

Zhu Zaiyu opened the lids on both sides to show off his invention.

Zhu Yijun studied it a little and found that this thing was a piano, but it was boxy, and when the cover was not opened, it was really difficult to distinguish.

It is about five feet two inches long and about four feet five inches wide, the shell is made of cedar wood, and the whole body is brushed with tung oil without any flaws, and the inside is produced by the War Bureau, the royal family, Zhu Yijun doesn't understand music theory, and he doesn't know what is in the stomach of this thing.

"Uncle Huang, start your show." Zhu Yijun didn't talk nonsense, let Zhu Zaiyu play a paragraph and then talk about it.

Zhu Zaiyu asked Wang Yaozhuo to start, Wang Yaozhuo was born in poverty, and Wang Yaozhuo really has never been exposed to the art of music, but he has studied with Zhu Zaiyu for nearly a year, and he can play the repertoire to be considered a success.

Zhu Zaiyu is to tell the little emperor that as long as he is willing to learn, he will definitely be able to learn.

Wang Yaozhuo was obviously not very skilled, and after stumbling and playing for a while, Zhu Zaiyu sat down in front of the piano and began to play smoothly.

Zhu Yijun really doesn't have that musical cell, he only has two words for Zhu Zaiyu's playing.

"Sounds good." Zhu Yijun looked at Zhang Juzheng and said, "Does Mr. understand music theory?" ”

"Back to Your Majesty, the minister doesn't understand, and he can only listen to a good sound." Zhang Juzheng was born in a military household, and if he is a musician, let him beat the war drums, he can also knock out one, two, three, and let him taste the music, which is completely unappreciative, it sounds really good, and the timbre is really complete.

"Do you want to learn it, sir?" Zhu Yijun looked at Zhang Juzheng and asked.

"The minister has official business, this, the minister won't learn it." Zhang Juzheng pondered for a while and expressed his dislike of music.

Mr. No, Zhu Yijun can say in a grand manner, Mr. can't learn and don't learn, then it's useless to govern the country, then don't learn.

"If Uncle Huang is short of money, he will speak." Zhu Yijun doesn't understand music, but he still strongly supports Zhu Zaiyu's music career, basically, there is no upper limit.

Zhu Zaiyu really didn't spend much money playing music, because his musical instruments were all produced by the War Bureau, and his apprentices all followed him to learn arithmetic.

"Obey." Zhu Zaiyu was helpless, he had already shown the only music in the world, but His Majesty was still not interested in music theory.

It's like playing the piano to the cow!

"I sent Uncle Huang the Innate Taiji Diagram and the Five Elements Taiji Diagram, Uncle Huang, why do the two curves almost coincide, but they don't coincide?" Zhu Yijun asked for the answer.

Zhu Zaiyu replied very honestly: "Chen Cheng doesn't know. ”

He understood those pictures, and he didn't know if it was a coincidence, or if there was some infinite reason in it, but he didn't know, let alone guess.

"Okay." Zhu Yijun said with a smile: "Don't be in a hurry, just study it slowly." ”

"Uncle Huang is talking about arithmetic today? If you don't talk about it, I and Mr. I will go to the feast. Zhu Yijun stood up and planned to leave, Zhu Zaiyu is here today to offer a congratulatory gift, so that His Majesty the Emperor also knows that he is not going back to Beijing to eat, he is really working, and His Majesty's investment is not without returns.

"Your Majesty, the minister really has an arithmetic to talk about." Zhu Zaiyu hurriedly said.

Zhu Yijun said with a sharp increase in interest: "Oh? What is it? ”

"Zu Chongzhi calculates pi." Zhu Zaiyu bowed his head and said.

Zhu Yijun nodded again and again and said, "I'm very interested, very interested, let's talk about it quickly." ”

Zu Chongzhi obviously calculated the last seven digits of pi, and later generations still use Wednesday as one day, Zhu Yijun is very interested in Zu Chongzhi's method of calculating pi.

Draw a circle, then measure its length with a line, divide the circumference by the diameter, and you get pi?

There is an error in such a measurement, and it is absolutely impossible to calculate the last seven digits of pi, and if mathematicians do this, they are not mathematicians.

"Your Majesty, it is a very convenient thing to calculate the opening of the square, it is not as difficult as imagined, only those fools who don't understand anything will say that it is impossible for Zu Chongzhi to calculate to seven decimal places!" Zhu Zaiyu first corrected a common cognitive error, that is, it was inconvenient to calculate.

In fact, the calculation chip is like a simple abacus, Zhu Zaiyu did not practice it himself, but asked Wang Yaozhuo to demonstrate the calculation chip to open an integer square, a small wooden stick, a small square box, she only took a quarter of an hour, the opening of the quadratic 7 to seven decimal places.

"If you have an abacus, you can calculate faster." Zhu Zaiyu said quite earnestly.

"If we want to talk about Zu Chong's calculation of pi, that is, the density of the circle, we have to use the circumcision." After Zhu Zaiyu asked his apprentice to demonstrate the calculation plan, he was ready to explain the circumcision, Zhu Yijun listened very carefully, and Zhu Zaiyu spoke very thoroughly.

In fact, it is the infinite approximation of the circle with the inner regular polygon, and the more sides of the regular polygon, the closer the perimeter and area are to the circumference and area of the circle.

This problem translates into how to find the circumference or area of a regular polygon, Zhu Yijun can understand that a radius of one inner regular hexagon has a side length of six, and the pi or density of the circle is three, which is the three paths that have been used.

Zhang Hong and Feng Bao couldn't understand the rest of the content at all.

"Will you?" Zhang Hong asked in a low voice, he was a little worried, if Feng Bao could understand, he wouldn't think about the position of the ancestor in his life.

Feng Bao said honestly: "No, just like listening to the Book of Heaven, Your Majesty and Yuan Fu can understand it, you see, they will occasionally discuss it with His Royal Highness the Prince, what is connected internally and externally, I don't understand it at all." ”

Your Majesty will ask, and if you don't know how to pretend to understand, you will be scolded.

"Zu Chongzhi is a person from the Northern and Southern Dynasties, more than a thousand years ago." Zhu Yijun listened to Zhu Zaiyu's explanation of the circumcision technique and Zu Chongzhi's algorithm, and said with great emotion.

Zhang Juzheng calculated for a while and said: "It has been 1,075 years since Zu Chongzhi passed away. ”

Circumcision, with a strong differential thinking, of course, is not to draw a positive 12288 polygonal hard calculation, but to use the power of the twelve goblets to continue to deduce, only need to calculate the positive 384 polygons, Zu Chong one iterated a total of 11 times, 22 times of the square calculation.

Speaking of this, Zhu Zaiyu did not stop, and continued: "Then next, it is Zu Chongzhi and his son Zu Yuzhi who deduce the volume of the cone and the sphere. ”

Zu Chongzhi calculated pi and his son deduced the formula for the volume of cones and spheres for more than 1,500 years. Sorry for being a little late today, but it's still updated as scheduled, asking for a monthly pass, woo!!!!!!

(End of chapter)