one's door

Chapter 114
A shabby narrow hall, a slightly dim oil lamp, a square table with patched legs, and two stools.

This is all the arrangements for a discussion.

By the way, there was a young man with a surprised and excited expression standing beside him watching. Although he didn't understand much, it didn't prevent him from experiencing some knowledge that made him suddenly enlightened or amazed.

As for Zhang Shun, Zhang Huiyuan, and Wang Lanping, they had already gone back to the house to avoid them.They felt the solemnity of the atmosphere, and they couldn't understand what the two people sitting at the square table were saying.I just felt that it seemed very powerful, and I consciously made a quiet environment.

"Pythagorean shares are multiplied separately, and they are combined to form Xuanshi. If the prescription is divided, it is Xuan. If there is a Xuantu diagram, the Pythagorean can be multiplied together to form Zhu Shi Er, and double it to form Zhu Shi Si."

There was a blank sheet of paper on the table, Zhang Yan was writing and drawing on it, and he was also speaking jerky words sentence by sentence.

Even with pictures and texts as a supplement, Luo Changshan, who was sitting opposite Zhang Yan, leaned forward and focused his attention, still couldn't understand immediately. He needed to interrupt Zhang Yan from time to time, and then he thought for himself, then picked up the paper at hand After writing and drawing with a pen, he always suddenly realized "Oh!" and let Zhang Yan continue to talk.

In fact, this theory was not like this at the beginning.

At the beginning, Luo Changshan was in the position of being tested, while Zhang Yan was in the position of being tested.One question and one answer, they are actually finding out the details of each other.Similar to a driveway.

Originally, Zhang Yan was still a little nervous. He didn't know exactly what Huangtianyu's miscellaneous studies would cover, and he was worried that he would be labeled a "liar" after asking questions.You must know that after spending so long in Huang Tianyu, he has experienced many times the special status of the school of miscellaneous studies, although it has a hidden reputation, it is noble and popular.Once he is hated by people of miscellaneous learning, it is not a good thing for him.At least it will be less convenient in the future.

But after asking a few questions, Zhang Yan had a clear idea.I also confirmed some of my previous guesses and some information about miscellaneous learning from hearsay from others.The conclusion is that the so-called miscellaneous studies in Huangtianyu overlap with the mainstream knowledge on the earth to a large extent, but it has not been subdivided into various subjects, and because of the suppression of the mainstream of martial arts, so far it is still in the A very basic stage.

What is the basis?That is, all aspects are still on the way to explore various basic laws.Some may be well-established, but some are still in their infancy and lack strong publicity and finality.

This is great news for Zhang Yan.In this way, using his shallow knowledge on the earth in the wild world, it is a kind of existence that belongs to the "knowledge base".Those advanced theoretical knowledge are not needed, some superficial primary school syllabus knowledge is enough to pass the level.

Just like now.What Zhang Yan took out was the description of the Pythagorean law by the sage Zhao Shuang in the great book "Nine Chapters of Arithmetic" on earth.This book is not used in ordinary elementary schools, but Zhang Yan is very familiar with it.Because the master used this book to enlighten him for a period of time when he followed the master to travel all over the world.Not to mention memorizing it backwards, at least I dare not forget it.If you take it out now, won't you make the other party stunned?

In addition to arithmetic, there are physics, chemistry, and biology. Forget it, those things are too troublesome.Everything that Zhang Yan remembered was the most basic thing, but there was a lot added up. It was a tower of knowledge slowly built up by countless sages on the earth for thousands of years, enough for Zhang Yan to squander.

Of course, good things cannot be used indiscriminately.Avoid looking cheap.Little by little, you have to slowly increase your status, and you must also seek some tangible benefits for yourself.

Luo Changshan had already forgotten his original intention of coming here.He sat at the square table in the small hall of the Zhang family all night, guarding what Zhang Yan told him and what he wrote.Checking and counting over and over again, never tired of it.Even his eyes were red, but he still looked unsatisfied.

On the contrary, Luo Changshan's apprentice couldn't stand it in the middle of the night and fell asleep lying in the corner of the wall.Indeed, as Luo Changshan said before, their masters and apprentices really don't pay much attention to living conditions.Sleeping on the floor doesn't care.

But after all, where is the age of seventy or so, although Zhang Yan looks energetic, but Zhang Yan dare not continue to let this old man suffer.After a good deal of talking, he persuaded him to take a room in a small inn not far from Zhuzui Lane to rest.Make an appointment to talk again this afternoon.

That is to say, the Zhang family is too small to live in, otherwise the old man Luo Changshan would not go to the inn.

Zhang Yan would not have any problems if he stayed up all night with his cultivation base. After Luo Changshan went to the inn, he went to the market to buy vegetables, and then returned home.

The eldest brother and younger sister have already gone to the store.Only the old mother Wang Lanping was at home. Seeing that Zhang Yan bought some vegetables, she quickly picked them up and went to the kitchen to tidy up.

"So many dishes?"

"Well, make a few more, and invite Mr. Luo to have a drink with his teacher and apprentice in the evening. I'll make a pot of wine and come back later." Zhang Yan packed up the dregs left over from yesterday's alchemy in his bedroom, and gave The mother who was busy in the kitchen replied.Although the alchemy was disturbed yesterday and couldn't continue, it still did two furnaces.Of course, it's all useless.Because what is refined is Biqingdan.

However, after several times of practice, Zhang Yan can also directly feel his progress in the refining of Biqing Dan.Although it was still far from successfully refining Biqing Dan, at least he could handle all the details of the first [-]% of refining.The progress has actually been much faster than he expected after his first failure.

Moreover, Zhou Cang sent people a lot more medicinal materials this time than last time, a full ten servings.It looked like he was going to stock up on some pills.

Zhang Yan did not refuse Zhou Cang's careful thought.He still has a lot of bone strengthening pills in his hand, and he can't use them. They are all prepared for Zhou Cang's favor.And the more medicine Zhou Cang sent, the more frequently he could try his hand, and get Biqingdan out as soon as possible.

Now Zhang Yan feels in his heart that alchemy is like a skill in many games, proficiency is also required in addition to the threshold of talent.

"Yan'er, come here."

"Mother is here. What's the matter?" Just after finishing the medicine residues in his room, Zhang Yan heard his old lady calling him in the kitchen, and hurried over.

"Mother, tell you something."

"Huh? Say it."

"When you know how to make wine, make an extra pot of good wine. Tomorrow, take it to the Wangjiazhuangzi outside the north gate of the city, and find a family named Wang Shi. Just say that I brought this wine to them. If they have any gift in return, you Just bring it back. If they don’t accept the jar of wine, don’t force it, just turn around and walk away.”

"Wang's Zhuangzi? Wang Shi? Mother, our family has relatives over there! Mother, is this a probe gift for the eldest brother?" Zhang Yan was not slow to react, and immediately came to his senses.At the same time, he secretly thought that his mother's movements were so fast!This will help the eldest brother find the right one?
ps: ten more (8/10)

(End of this chapter)