In the lobby of the Zhao Mansion, Jiang Wei and Shopkeeper Li were waiting for Zhao Shuang.

After Zhao Shuang came to the lobby, he smiled enthusiastically when he saw Jiang Wei and Shopkeeper Li:

"Master Jiang and Shopkeeper Li came to the Humble House, making the Humble House shine!"

Jiang Wei and Shopkeeper Li also smiled and said:

"I took the liberty to come to disturb Brother Zhao, I hope that Brother Zhao Haihan."

"This is a little bit of Lord Jiang's heart, please Brother Zhao smile."

Then Shopkeeper Li handed the gift to the subordinates of the Zhao Mansion.

"Master Jiang and Shopkeeper Li are polite, please take a seat."

Although Zhao Shuang is obsessed with arithmetic and astronomy on weekdays, he is also quite familiar with human contacts.

The three of them sat down, and after the next person looked at the tea, Zhao Shuang asked the doubts in his heart:

"I don't know if Master Jiang and Shopkeeper Li, what are you doing this time?"

Jiang Wei smiled and answered Zhao Shuang's doubts:

"Lord Hanzhong heard that there was an arithmetic master in Yangzhou, so he asked me and Shopkeeper Li to visit and admire Brother Zhao's name for a long time!"

Shopkeeper Li also said with a smile on the side:

"As soon as Lord Jiang arrived in Yangzhou, he came to visit Brother Zhao in the house the next day, hoping that Brother Zhao could do a small favor to Lord Hou of Hanzhong."

Zhao Shuang was very surprised when he heard the words of Jiang Wei and Shopkeeper Li.

Zhao Shuang, the name of Hou Linchuan in Hanzhong, has already heard of it, and he also agrees with the products of the Hanzhong Chamber of Commerce.

The grain seeds in Zhao's mansion were purchased from the Hanzhong Chamber of Commerce, and Zhao Shuang's fields were also used with agricultural tools sold by the Hanzhong Chamber of Commerce.

Zhao Shuang's favorite is the rice paper and glass cups produced by the Hanzhong Chamber of Commerce.

At this time, Zhao Shuang heard that it was Hou Linchuan of Hanzhong who wanted to help himself, and he was surprised and quickly said to Jiang Wei and Shopkeeper Li:

"Lord Hou of Hanzhong, but there are orders, Zhao Shuang doesn't dare to resign, just ......"

Zhao Shuang also wanted to say that he was only interested in arithmetic and astronomy, and had no other strengths, for fear that he would delay the affairs of the Marquis of Hanzhong.

Jiang Wei saw Zhao Shuang's worries, and directly interrupted Zhao Shuang's worries:

"I thank Brother Zhao for his help on behalf of Lord Hou of Hanzhong, Brother Zhao doesn't have to worry, the problem I asked Brother Zhao to help solve this time is precisely about the way of arithmetic."

As soon as Zhao Shuang heard Jiang Wei talk about the way of arithmetic, he immediately became interested, and saw him say happily:

"Master Jiang and Shopkeeper Li don't need to be polite, just call me Junqing. I don't know what kind of arithmetic problems Lord Hanzhong encountered? ”

Jiang Wei saw that Zhao Shuang's interest increased as soon as he mentioned arithmetic, and he knew that the matter of asking him to revise the mathematics textbook was now nine out of ten.

So Jiang Wei took out the carefully wrapped mathematics textbook from his arms, and then got up and handed the mathematics textbook to Zhao Shuang.

Zhao Shuang saw Jiang Wei handing him a book, and he didn't rush to open it, but cast a puzzled look at Jiang Wei.

"Junqing, the book in your hand is a mathematics textbook written by Lord Hou of Hanzhong himself!"

"What I want to ask Junqing for help this time is to make some changes to this mathematics textbook to make it easier to understand."

After Jiang Wei sat down again, he finally told Zhao Shuang all the purpose of this visit.

Zhao Shuang was shocked to learn that the book in his hand, called Mathematics Textbook, was compiled by the Hou of Hanzhong!

The only mathematical works available today are "Xu Shang Arithmetic", "Du Zhong Arithmetic", "Zhou Ji Arithmetic" and "Nine Chapters of Arithmetic"!

Zhao Shuang, who is currently studying the "Zhou Ji Sutra", could not have imagined that the Marquis of Hanzhong would also compile a mathematical work.

Jiang Wei saw the shocked Zhao Shuang, and remembered that he had just gotten three textbooks, and he was as shocked as Zhao Shuang at that time.

Zhao Shuang wanted to take a sip of tea to suppress his shock, but the hand holding the tea trembled slightly with excitement.

For Zhao Shuang, who loves mathematics very much, being able to read a new mathematical book is like meeting an oasis in the desert and an island in the sea.

Zhao Shuang, who drank all the tea, finally calmed down his excitement, carefully held the mathematics textbook in his hand, and said to Jiang Wei and Shopkeeper Li:

"Lord Hou of Hanzhong not only made the governance of Hanzhong County prosperous, but also won the trust of Lord Wei Wang, and the Hanzhong Chamber of Commerce founded also benefited many people of Dawei."

"I didn't expect that I, Zhao Shuang, would be fortunate enough to see the mathematics textbook written by Lord Hou of Hanzhong today, Lord Hou of Hanzhong is worthy of being a child of the fairy family!"

After Zhao Shuang finished speaking, Lin Chuan, who was far away in Hanzhong City, suddenly sneezed a few times in a row, and the accompanying guards immediately took out the prepared brocade robe and prepared to put it on for Lin Chuan.

Lin Chuan waved his hand to signal that he didn't need to, thinking to himself who was talking about Ben Hou?

After Zhao Shuang finished sighing, he said to Jiang Wei and Zhao Shopkeeper again:

"I need to study the works of Lord Hou of Hanzhong, and as for whether I can spare the strength to revise them, I also ask Lord Jiang and Shopkeeper Li to stay for two days, and then I will inform you at the door."

Jiang Wei and Shopkeeper Li knew that Zhao Shuang needed time to understand the math textbook first, and they couldn't wait to study it seriously to see Zhao Shuang's performance.

"Okay, then please Junqing, wait for Junqing's good news!"

Jiang Wei smiled at Zhao Shuang, and at the same time got up to leave.

Shopkeeper Li also got up at the same time and said to Zhao Shuang:

"Junqing can come to the second floor of the Yangzhou branch to find Master Jiang in two days, and there is a lot of disturbance today."

Then Jiang Wei and Shopkeeper Li got up and said goodbye and left

Zhao Shuang also personally sent Jiang Wei and Shopkeeper Li to the door of Zhao's mansion.

After Jiang Wei and Shopkeeper Li left, Zhao Shuang quickly returned to his study and instructed his subordinates not to disturb him if he had nothing important.

After returning to the study, Zhao Shuang couldn't wait to open the math textbook and began to read it seriously.

The more Zhao Shuang looked at it, the greater the surprise in his heart!

Lin Chuan also deleted some of the mathematics textbooks, mainly about some later societies.

For example, the content related to the social life of later generations, such as knowing clocks, coins, calendars, etc., has been deleted by Lin Chuan.

The rest is mainly about the four arithmetic, various calculations of graphs and angles, etc.

Zhao Shuang, who was studying the "Zhou Ji Sutra", brought him a lot of inspiration after seeing the content in the mathematics textbook.

And the content in this mathematics textbook may be a little obscure for ordinary people, but it is indeed of great benefit to Zhao Shuang.

So the more Zhao Shuang studied, the more surprised he became, and he couldn't stop at all.

In the evening, the subordinates of the Zhao Mansion asked Zhao Shuang to have dinner, and Zhao Shuang directly asked the subordinates to send the food to the study, and after eating two bites hastily, he began to study the mathematics textbook again.

The subordinates of the Zhao Mansion were also accustomed to the style of their masters, and left quietly after putting away the tableware.

Zhao Shuang studied until late at night, and did not put down the math textbook in his hand until the lamp oil burned out.

Zhao Shuang, who was lying on the bed, was still thinking about the content of the mathematics textbook, and couldn't help but sigh in his heart:

"Hanzhong Hou's arithmetic attainments make me ashamed! It seems that I have to ask Lord Hanzhong Hou for advice in person......"