After the inauguration ceremony of Jiuding, he participated in Wu Zetian's 73rd birthday. Wu Yanzhi decided to take time to go to Chengjunjian (Guozijian) to explain this Arabic numerals, that is, the Kaiyuan numbers of the Great Zhou.

Wu Zhou's Chengjun Prison is exactly the same as the previous Guozijian, but the name is different. Cheng Junjian teaches six schools, namely Guozi Studies, Tai Studies, Four Studies, Law, Calligraphy, and Arithmetic.

Guozi Xue accepts the children and grandchildren of senior officials above the third grade of civil and military affairs, with a limit of 300. Taixue accepts the children and grandchildren of middle-level officials above the fifth grade of civil and military affairs, with a limit of 500. The sons of low-level officials above the seventh rank of civil and military affairs are accepted in the four schools, which are limited to 500, and the handsome young people among the local common people are limited to 800.

Jurisprudence (50 people. Including various laws, orders, forms, and formulas, that is, various laws), calligraphy (30 people. Writing and calligraphy) and arithmetic (30 people. Computing) is a specialized discipline.

The three schools behind this also cultivated countless talents for the Great Zhou (Tang). It is said that this kind of sub-discipline teaching is said to be the ancestor of later universities.

……

Morning.

I don't go into the palace today. Outside the gate of Chengjun Prison, Gao Saijiu, Zhang Siye, and Liu Siye (Saijiu is the prefect, Siye is the deputy), and a number of officials are waiting to greet Wu Yanzhi, several prime ministers, six Shangshu and squires.

This high sacrificial wine has served as a lang and a waiter, and he is very knowledgeable. However, it must be unheard of for a prince in his twenties to talk about what numbers, and to bring so many prime ministers and six ministers to listen to his lectures!

I saw that Zhang Siye said: "Gao Gong, Liu Gong, have you ever seen what that Kaiyuan number is?" Why does the Holy One attach so much importance to it? ”

Gao Saijiu said: "You have also seen this number, it is the symbol on the big chronograph in the Ming Hall on that day. Use that symbol to represent 1, 2, 3, 4, all the way up to 10. It should be said that it is still more convenient. ”

He looked serious.

"Simple is simple, but it is said that there is a more advanced usage, which came from the palace, I don't know what it is?" That Liu Siye said.

"Perhaps! If it's just a code name, why does the Holy One attach so much importance to it? The saint is the first empress of the ages, and she will not arbitrarily make a system (making a book: that is, an edict). The high sacrificial wine still did not smile.

"This King of Donglai also has some real skills! Not only did he write poems well, but he also added so much copper and iron in more than a year, which is really amazing! Zhang Siye sighed.

"That's right! Speaking of this poem, later, after King Donglai finished speaking, he should still ask him to write a poem. Hu Cheng, please arrange this matter! Gao Saijiu shouted to a man who was in charge of daily affairs next to him and said.

"Subordinates obey!"

"Look, there's someone over there!" Someone shouted.

In the light of the morning light, some people came slowly in the distance.

The sharp-eyed man said: "It's Li Shilang, they have arrived!" ”。

So the crowd walked a few steps and stepped forward to greet them.

Then, a number of people arrived one after another, but in fact, it was mainly the six servants. At that time, the book was either vacant, or someone else held it.

This squire generally has two people as standard, and there is one more person in the heavenly officials (officials).

Everyone exchanged a few words, and then Wu Yanzhi and the prime ministers came one after another.

"Congratulations to the Sect Minister!" That Zhang Siye kept saying congratulations to Zong Chuke.

The eyes of the sect master and guest are higher than the top, especially a few days ago, Liang Wang Wu Sansi became a Yaxian, and seeing that he was expected to be made the crown prince, he was even more confident.

Even the inner history Wang Jishan and Yao Xuan beside him don't pay attention to him. The two were loyal elders, but they didn't care.

Not only that, that Chu Ke had received Wu Yanzhi's anger, and at this moment, he was the same as Tongping Zhangshi, and he also looked at Wu Yanzhi with slanted eyes.

Wu Yanzhi didn't care at all! What kind of sectarian is this, the quality is so low, and he is greedy and bribed. I don't know why Wu Zetian wants to reuse him? Maybe it's because someone else is handsome, and it's because of relatives, right?

In his vague impression, this person doesn't seem to have been the prime minister for long! Including the Wu family, the time of being the prime minister was very short. They lack the ability to be prime ministers.

I saw that the Chu Ke was arrogant, and he even ignored the fact that the two chiefs of the Fengge Luantai, Wang Jishan and Nayan Yao Xuan, were beside him, and he wanted to rush forward.

However, his action was stopped by the high sacrificial wine: "Zong Xianggong, Your Majesty has a system, and King Donglai is also the envoy of Kaiyuan, and he is the emperor." At the same time, the prince came to Chengjun to teach today, and he is the teacher! It stands to reason that the teacher should go first! King Donglai, please go first! ”

That Zong Chuke's face was full of embarrassment, and Wu Yanzhi was not polite, so he walked away.

Speaking of which, the person with the highest rank here is really Wu Yanzhi, he is a doctor of Guanglu, and he is also the king of the county. If he is according to the ranks, not according to the ministry, it is also in accordance with the etiquette that he walks forward, and there is nothing wrong with him.

Gao Saijiu accompanied Wu Yanzhi and rushed to the rest room of Cheng Junjian.

The two ministers accompanied several prime ministers. Those squires are also high-profile characters on weekdays, and there are few people they can look down on. However, under today's big scene, they still think that they are small! Not only shook his head secretly.

Naturally, someone has already done a good job of greeting them, and the tea reception is very enthusiastic.

Today's protagonist is Wu Yanzhi, and he enjoys such treatment.

"Gao Gong, I don't know how this course is arranged?" Wu Yanzhi asked.

He had known that it would be a class in the morning, an hour, and a break in between. I just don't know when to start.

"The king of Donglai has a lot of opportunities, and he will get married in a few days. It's really rare to take time out of your busy schedule to explain this algorithm to me. If you don't mind, you can start from Chenshi. "Takatsuri sake road.

"Well, that's good! Gao Gong's arrangement is. By the way, since it is a lesson for arithmetic students, I don't just talk about numbers, I also have a very simple calculation tool, Gao Gong, please take a look. Wu Yanzhi said, and pulled out a small abacus from his sleeve.

(According to research, at this time, the abacus commonly used in the Ming and Qing dynasties, a unique calculation tool in China, was far from being invented at this time.) ）

When everyone saw it, it was very strange, and they didn't know what it was.

The high sacrificial wine was also very strange: "Lord Wang, what is the name of this thing?" Don't know how to use it? Is it the same as a regular counting bead chip? ”

Counting bead chips? Are you kidding? Brother, this is the quintessence of the country!

"This thing is called an abacus, don't look at it only a few beads, this is addition, subtraction, multiplication and division, all can be calculated. Not only that, but even if you calculate what the student learns, he can also calculate! Wu Yanzhi said.

"Can the prescription also be calculated? It's amazing, too! An assistant professor of arithmetic next to him said.

Wu Yanyi listened to his expression and didn't seem to believe it.

"I'll show you how!" Wu Yanzhi put the abacus on the small case.

Then he said, "Guys, I'm going to try a simple four-digit multiplication and division!" ”

With that, he casually said a few numbers and began to fiddle with the abacus! Please Baidu "Throw Book Network" Thank you for your support!