"Hehe, that's good. ”

Hearing Xu Wen's words, Yan Jiangguan laughed twice, took the scroll back from his hand, shook it slightly, and unfolded it.

"I'll test you a question, and you can do it for me. ”

Now he doesn't say it's a game or anything, and it is directly clear that it is an exam question.

Xu Wen looked at him and nodded.

Yan Jiangguan said that it was one, but in fact, there were three in a row.

As Xu Wen thought, all of them were simple math problems, more precisely, geometry problems.

These questions are of course much more difficult than the Pythagorean theorem, involving the calculation of angles and radians, but they are still at a junior high school level.

Xu asked to solve the problem without any problem, but spent some effort to understand the meaning of the question.

The expression of many concepts in ancient mathematics is completely different from that of modern mathematics, and the meaning of some words is only known to him by asking Yan Jiangguan.

For ancient mathematics, this is the foundation of the foundation, and Yan Jiangguan wondered how he didn't even know this, but he still patiently explained it to him one by one.

Figure out the meaning of the question, and the rest of the matter is very simple.

Xu Wen asked Yan for a piece of scratch paper, on which he wrote and drawn.

He deliberately did not use Arabic numerals, but some of the symbols and the most crucial solution ideas are obviously different.

Yan Jiangguan sat next to him and watched, the more he looked, the more surprised he became, and he couldn't help but straighten up and stare intently at Xu Wen's scratch paper.

At this time, it was getting late, and the candlelight was swaying on the paper, and Yan Gongguan plucked the wick of the candle to make it brighter.

Even as he did these things, his eyes did not take off Xu Wen's pen, watching the strings of ink fall on the paper and expand in all directions.

"The number of corners of the first question should be one xuan, the length of the line of the second question is seven feet two, and the length of the line of the third question is two feet and three inches. After a while, Xu Wen reported the answer.

Yu and Xuan are ancient concepts, and Xu Wen learned them not long ago. The corner is the angle, and the first Xuan is forty-five degrees.

Yan Gongguan looked at him and said slowly, "Correct. ”

He returned the scroll to Xu Wen's hand, and tapped his finger on it: "So, why can't this exam question be shown to you? Everything on it is not difficult for you." ”

Xu Wen lowered his head and saw that the place of his finger was at the end of the scroll, it was obvious that this was the question that would only be taken out when the "night school" was about to end, and it could be regarded as the final exam of the course.

At the same time, he saw a line next to the question: "Time to solve the problem: one hour." ”

Two hours in one hour, that is, in the expectation of the craftsmen, they will have two hours to complete these three questions. Of course, in practice, most of the times there will be a requirement for the top 30 to add extra points, but how long did it take Xu Wen to do these three questions just now?

Is there twenty minutes?

There was still at least ten minutes to go, and he was asking the meaning of the terms of the Yan Craftsman Official......

If that day comes, the craftsmen must have taught them all in advance.

With this kind of correct answering rate and this speed, Xu Wen really has no need to learn these things again......

Xu Wen looked at the scroll in his hand and asked, "After I read this, I can't participate in the daily 'game' anymore, right?"

"Huh?" he used "can't" instead of "don't". Yan Gongguan noticed it and raised his eyebrows suspiciously.

Isn't it good to have this privilege?

"Then what about the rest of our group, can there only be one less person every day?" Xu Wen asked.

"This ......" Yan Craftsman was indeed negligent, pondered for a moment, and quickly decided, "By default, you have a perfect score, and the results of others will be calculated on this basis." ”

"Okay. Xu Wen thought about it and nodded naturally.

From the beginning to the present, he has indeed scored full marks in every round, and occasionally has extraordinary performances such as six feet and six. Now he has even made the last question, and it is normal to be exempt from the test with a full score.

Besides, he was really curious about the plan in his hand and wanted to see it in advance.

Reaching an agreement, Xu Wen pulled open the scroll and began to look at it from the beginning.

His expression gradually changed to surprise, and then to solemnity.

This is a very unusual plan, especially in relation to Xu Wen's understanding of this era, which shows its weight.

Xu Wen has been in this world for two years, and his biggest feeling is that experience and feelings are emphasized here, and theory and system are lightened.

This is consistent with his impression of "antiquity".

Although he had studied in school before, he also knew that there were actually some theoretical monographs in ancient times, such as the Nine Chapters of Arithmetic, the Zhou Ji Sutra, the Heavenly Works, and the Mengxi Writings.

But his personal experience told him that it was a game that belonged to a very small number of elites, and had nothing to do with the broad masses of the people.

The current "plan" is very systematic, from the addition and subtraction at the beginning and the division slightly at the end, to the geometric algebra starting with the Pythagorean theorem, and constantly expands upward, outlining the concept of basic mathematical theory.

From the middle of the "plan" onwards, the reasons for teaching these contents were gradually spelled out.

All mathematical theories are related to the actual work of craftsmen.

Using these theories as a guide, they were able to plan their way of working more clearly and simply, which was the experience that the old craftsmen had to accumulate gradually with thousands of work practices, and the craftsmen directly pointed out shortcuts to them.

This can be said to be a quick guide for mature craftsmen, and the most important thing is its thinking and working methods, which are quite modern, which makes Xu Wen simply eye-opener.

The most commendable thing is that the experience of these few nights has already taught him that all the above things are taught to them for free.

It's not just about teaching people to fish, it's like pie from the sky.

"Is this arranged by the imperial court?" he asked incredulously.

Yan Jiangguan raised his eyebrows.

The planning of the imperial court is one thing, and it is really rare for Xu Wen to be able to see their purpose from this "plan" so quickly.

"It was arranged by the imperial court and the Ziyi Gongsu. He nodded.

The imperial court was the real official, and the Ziyi Gongsho was equivalent to a guild, a social association of craftsmen.

The status of craftsmen is not high, and the status of Ziyi Gongshu actually follows this.

When he first came to Yushui County to participate in the apprenticeship test, Xu Wen stayed in the Ziyi Office, and later came to the county government for the examination.

It wasn't until later that he learned that it wasn't, and he was surprised by the closeness and depth of cooperation between Ziyi Gongshu and the government.

Now Yan Jiangguan's words are also clear, and the status of the public office is even higher than he imagined.

Is this because the imperial court wants to manage craftsmen more deeply and thoroughly......

The above is more concerned about this part than he imagined, even if the times are developing and the world is changing, it feels too urgent and urgent.

Xu Wen was slightly distracted and quickly stopped.

"What do you want me to do?" he asked.

"Teach them what you know. Yan Jiangguan said succinctly and forcefully, "Whatever you want, you can ask us." ”