one's door

Chapter 117 Benefit
When he woke up, what Luo Changshan remembered most was Zhang Yan's ingenious discourse on graphics, which was able to discover such magical laws in arithmetic, and deduce specific um, laws, yes, they are called laws, he remembered That's what Zhang Yan said at the time.

Even Luo Changshan is still thinking about the wonderful book called "Nine Chapters of Arithmetic" that Zhang Yan only mentioned.

Luo Changshan is sure that it is definitely not something that can be done by one or two people, and it is even possible for hundreds of generations of people.A single article on the "Pythagorean Law" in it made him study all night, and he still has nothing to say about it, and there are still some unclear details that need to be pondered over and over again.Then how grand and wonderful will the remaining chapters be?
While sighing, Luo Changshan was not really dazzled by the wonderful and shocking knowledge that Zhang Yan threw out.He always remembered his original purpose of rushing to Langyuan City this time.It's just that I haven't touched the context yet.

For example, where are Zhang Yan's roots?Those knowledge obviously have a strong characteristic of miscellaneous studies, and many of them are even ahead of the current miscellaneous circles.But there is also the mysterious method of alchemy that is completely irrelevant to miscellaneous learning.What's the point of this?
What puzzled Luo Changshan the most was that Zhang Yan's school has been unknown.It even seemed that if Zhang Yan hadn't suffered a serious crime and had to rely on means to earn his life, their faction might have to continue to hide tightly.So strict that even the miscellaneous circles don't know anything about them.

Last night, Luo Changshan also asked Zhang Yan about who he studied under.But the result he got surprised him again.

"I do not know!"

At that time, Luo Changshan was about to vomit blood from anger.Is there any strange thing about learning so much knowledge but not knowing who the master is?Anyway, Luo Changshan didn't believe it, so he took it as Zhang Yan's vulgar perfunctory, and didn't want to talk about his sect.

But there is one thing that Luo Changshan can be sure of from yesterday's contact, that is, Zhang Yan is not a cunning person, and his knowledge is extremely solid, and there are new ways and means outside the circle of miscellaneous learning.

To be honest, Luo Changshan was itchy.Not coveting other people's knowledge, just curious.I feel in my heart that I should stay in Langyuan City for a few more days this time.At least some of the subtle things in "Nine Chapters of Arithmetic" should be used again.

But Luo Changshan couldn't hold back his face if he asked for it with empty teeth.The "Pythagorean Law" that Zhang Yan told him yesterday already made him feel a little bit ashamed, and he learned the knowledge of several generations of research in vain.Zhang Yan seemed to know a little bit about everything he could get his hands on, which made Luo Changshan into trouble.

"Forget it. There is a lot of knowledge in the circle of miscellaneous studies, and many of them have cross-references. The big deal is to ask Zhang Yan which aspect he is interested in, and let him choose. If it is possible to exchange for a new path of miscellaneous studies count, people in the circle will agree.”

In the end, Luo Changshan made up his own mind, and couldn't wait to continue chatting with Zhang Yan.

Almost before the timing, apprentice Zeng Hao came down from upstairs in a daze.He seemed to have woken up, and he didn't panic if he didn't see the master when he woke up. After washing up, he was going to go downstairs to eat something.

"master."

"Well. Call yourself what you want to eat, move quickly, and we will go to Zhang's house after eating." Luo Changshan is in a good mood, and he is sorting out the knowledge categories in the miscellaneous circle in his mind.At the same time, I was also recalling how many categories of books I had stored in my home, so that I could exchange them with Zhang Yan at that time.

Three meatloaf and a bowl of porridge are Zeng Hao's meals.Gobble it up quickly.

"Master, do you think Zhang Yan and I are of the same generation?" It is rare for Zeng Hao to meet a beardless man of miscellaneous education, and Zhang Yan gave him a good impression. Give the master a lesson.He also hoped to be more familiar with Zhang Yan.

Luo Changshan was stunned for a moment, then shook his head and replied: "It's not easy to calculate. He doesn't want to say where his teacher came from, so there is no way to calculate seniority."

"In terms of age, is it my generation?"

"That's about the same. He's probably about ten years older than you."

"Hey, Master, since I'm of the same generation and of the same line of knowledge, you said if I call him "senior brother" and often go to him for advice, will he talk to me?" Zeng Hao blinked his eyes, turning himself I talked about the small thoughts that suddenly came to mind before going to bed yesterday, and asked the master if it was feasible.

"This..." Luo Changshan's eyes lit up, the apprentice's idea was beyond his expectation.Maybe. "Well, we will stay in Langyuan City for a few more days recently, you can try it. That Zhang Yan doesn't seem to be a difficult person to get in touch with. However, you must be measured when speaking and asking questions, so that people don't think you are annoying. Understand?"

"Master, don't worry, I understand." Zeng Hao nodded with a smile.Just like what Shi Xuan gave him before, he is not only "smart" as Luo Changshan said modestly, but also has great wisdom.

Zeng Hao's thought was, how bad is the knowledge that even the master has to listen carefully?The master is due to his status, so it is not easy to ask, and he cannot go.As a peer, he can always ask something on the sidelines, right?Learning a little bit is a little bit, this thing is completely guaranteed to make money.Big deal to help run errands.The wheelchair Zeng Hao remembers at the carpenter shop, he knows it at a glance, and he can help.After getting acquainted with the Zhang family, Zhang Yan can't just say nothing and teach nothing, right?

Patting his apprentice on the shoulder, Luo Changshan's mood suddenly became better.Secretly said: It's better to be young, shameless if you say shameless, without hesitation.It's not like the old man who has lived his whole life and counted on an old face.Young people are awesome!At that time, I will be Zeng Hao's master, so I should test him to see how he has learned from Zhang Yan. Is that okay?

The master and the apprentice walked out of the inn with smiles on their faces. As soon as they walked to Zhuzui Lane, they saw Zhang Yan coming out.

"I was going to see how the senior was resting, but I didn't expect the senior to come first."

"Hahaha, when you are old, you will be less sleepy. If I hadn't waited for this kid, I would have come to see Mr. Zhang just after noon. Mr. Zhang's lectures last night benefited the old man suddenly, and today I also brought some cheeks. If you have any doubts, I hope Mr. Zhang can give you some pointers."

One called "Senior" and the other called "Sir", so they each called their own, but they all agreed tacitly.

"Senior, you are joking. Zhang Yan is a backward person. How dare you point out seniors with little knowledge? It's not bad to ask seniors to correct you. And when it comes to doubts, Zhang Yan has a lot of doubts that need to be solved by seniors." Zhang Yan said while serving hot tea to Luo Changshan. , It is obvious to lay some groundwork inside and outside the words.

(End of this chapter)