He Duan and the others drank from noon to afternoon, and when the banquet was over, these people were carried back by their own soldiers.

Taking advantage of the banquet, Liu Ximing had already talked with Yu Yongkai in detail, and all these things were arranged for the change of defense and the stationing of finances, so that he had finished his last little thing in the city, and he would go home.

Yesterday, several injured guards were also treated in the city, Liu Ximing and his party of more than 30 people led the horses from the Dongmen Wharf to return to Liujia Village by boat, probably because of the reason why the army was stationed, the Fucheng Wharf was lively again, and the business and travel were continuous, adding a touch of color to the bleak winter.

Liu Ximing sat on the bow of the boat and saw this scene in a good mood, in addition to the Huang family and the Yin Yang Sect and other bad things of the eight lambs, now everything can be said to be smooth, and when the New Year a large number of buildings in the family will be completed, then Liujia Village can also be called Liujia Town.

"With the strength of the good wind, send me to the clouds, hahaha." , Thinking of the happy place, Liu Ximing was very poetic for a while, and he couldn't help but chant with a wet hand.

"Good sentence, but unfortunately there are only two sentences, why don't you make up this poem?"

At this time, the guards were still loading the horses, and there was a sudden cheer from the shore, Liu Ximing looked up and saw that a young man in a green robe with a simple face was standing on the dock with a burden on his back.

Of course, others who are willing to appreciate their faces Liu Ximing will not be disappointed, he immediately got up and arched his hand towards this person, but suddenly felt that this person was a little familiar.

"Hey, isn't this Brother Xiangyang, you and I met outside the county yamen yesterday, and you said that you wanted to guarantee my gambling game." , Liu Ximing thought about it vigorously and smiled.

The scholar didn't expect Liu Ximing to know him, so he suddenly shook his head, and when Liu Ximing talked about yesterday's incident, he suddenly realized: "Hahaha, it turned out to be Brother Liu, who didn't bully the young and poor, today is really a coincidence." ”

This person is Zhao Xiangyang, who stood up with Du Liangji and Li De to witness for Liu Ximing, Liu Ximing smiled with a smile on his face: "Where is Brother Zhao going, if it is on the way, I can give Brother Zhao a ride." ”

"I'm about to return to Xujiawan"

"Hahaha", Liu Ximing laughed loudly, and personally stepped off the boat to invite Zhao Xiangyang: "My home is in Zhengyuan Township across the river, just to give Brother Zhao a ride." ”

Zhao Xiangyang didn't look like a twisted person, seeing that Liu Ximing was so enthusiastic, he also laughed and stopped refusing, talked to Liu Ximing about the New Year, and followed the ship chartered by Liu Ximing and others.

However, when he saw that the guards on the ship were all dressed in the same black suits, treating Liu Ximing with respect, Zhao Xiangyang couldn't help but smile and said: "Brother Liu doesn't look like a poor young man, why, didn't he deceive me yesterday?" ”

Liu Ximing saw that his appearance was not mocking, and while inviting him to sit down at the bow of the boat, he explained with a smile:

"There are two kinds of so-called poor people, one is poor in wealth, the other is poor in ambition, the common people deceive my young man just because of poverty, but I think that my young ambition is higher than the sky, and my heart is wider than the sea, the so-called milk tiger roaring valley, the beasts are terrified, the eagle falcon tries its wings, the wind and dust are sucking, Lu Jiahong's generation relies on the remnants of his father and ancestors to regard me and other cold doors as grass mustard, but I want him to see, I can make myself rich and rich."

"So Brother Liu's family wealth is all earned by himself?"

"Exactly", Liu Ximing arched his hand at Zhao Xiangyang and smiled: "I'm ashamed, my younger brother has always loved the way of a hundred crafts, and he studied with many intentions in the past, so he made some money with such skills, Brother Xiangyang don't laugh at me." ”

Zhao Xiangyang did have a overjoyed expression when he heard this, he grabbed Liu Ximing and laughed: "I don't want to meet my friends today, my foolish brother has been obsessed with astronomy and geography, and he has been urging him to do business, but he doesn't have much time to study." ”

"Hahaha, it's so good, it's really rare, the little brother used to meet some Confucian students who only talked about it, but it was difficult to meet a wonderful person like Brother Zhao, I don't know what miscellaneous studies Brother Zhao is studying?"

Zhao Xiangyang showed a sincere smile and picked his head: "Brother Fool still has some experience in mathematics. ”

Hehe, it's time to pretend to be forced, Liu Ximing is overjoyed, my brother is also an engineering student, and I have studied mathematics II, so I just said it to scare you.

"Ahem, it's inevitably boring to sit on the boat for a long time, how about you and I learn together?"

Seeing Zhao Xiangyang nodded, Liu Ximing smiled and said: "Then I will try a question, there are three kinds of goods A, B, and C, and it takes 80 taels of silver to buy 5 pieces of A, 2 pieces of B, and 4 pieces of C; To buy 3 pieces of A, 6 pieces of B, and 4 pieces of C, you need 144 taels of silver, and how many taels do you need to buy one piece of each of A, B, and C? ”

"What, it's a three-way question!"

Zhao Xiangyang looked at Liu Ximing with some surprise, he didn't expect that this Liu Xian's mathematical attainments were so profound, and such a question would come as soon as he opened his mouth.

However, he was not stunned, he directly took out the calculation chips, and gestured on the tea table in front of him while chattering: "Tianyuan is A, Diyuan is B, and Renyuan is C......"

Liu Ximing quietly drank tea and waited for Zhao Xiangyang to calculate, but in his heart, he quickly made a calculation with a ternary equation.

The ancient Chinese have long invented the solution of multiple one-time equations, and its solution is also calculated by using the elimination method, which is nearly 500 years ahead of Europe, but the expression of the Chinese solution is slightly more complicated.

After a while, Zhao Xiangyang turned his head with a smile, "If you buy one piece of A, B and C, you need twenty-eight taels of silver, Brother Xian thinks it's right?" ”

Zhao Xiangyang's answer was right, and this time was much faster than Liu Ximing expected.

Liu Ximing applauded and smiled: "Brother Zhao is indeed."

I have studied mathematics a lot, but ......"

"But what?" , Zhao Xiangyang asked a little strangely, isn't this question already done correctly?

"Hehe, but the speed of solving the problem is a little slower, if you encounter an urgent need to solve the problem quickly, I'm afraid you will suffer a lot of losses."

Zhao Xiangyang bowed his hand to Liu Ximing with a face of disbelief: "The elimination of the yuan method has always been like this, I don't know what Brother Liu has to say." ”

"I can't talk about it, it's just a little careful, Brother Zhao, please take a look."

Liu Ximing took out a piece of paper and wrote on it 5 A + 2 B + 4 C = 80, 3 A + 6 B + 4 C = 144, and then divided by 8 to get the correct answer.

Although Zhao Xiangyang didn't understand the Arabic numerals written by Liu Ximing, he couldn't help but be a little curious when he saw that Liu Ximing listed a few formulas like flowing water, and his expression didn't look like nonsense.

"Hooked", Liu Ximing smiled secretly in his heart, and immediately briefly introduced his knowledge about equations, matrices, etc., and saw that Zhao Xiangyang's mouth was getting bigger and bigger, so he continued to add fire.

"Mathematics is related to the rules of heaven and earth, people who do not have great wisdom can not get it, Confucianism to their own deafness and vain mathematics as a small way, how ridiculous, in the past hundred years, my Chinese learning has been inched forward, on the other hand, the West Bai Di, his people believe in God, do not seek to study the study of life, in this mathematics, Gewu and other aspects have gone farther and farther."

"Brother Liu still knows about the Taixi people?" , Zhao Xiangyang heard Liu Ximing say this, and immediately asked with some surprise.

He was surprised, but Liu Ximing was even more surprised, Zhao Xiangyang obviously knew something about Europe, and it was really rare to meet someone who knew the outside world in the closed inland of Sichuan.

"Yes, the missionary brother sent to China by Tessie has had a lot of contact, and the patriarch of the South China diocese, Julius, has a good relationship with the younger brother, but Brother Zhao is really unexpected."

Lao Liu now feels that he has been taken away by the astringent society, it turns out that he is still a child, and now he will come with a special lie.

Zhao Xiangyang was really successfully fooled by Liu Ximing, he took Liu Ximing's hands with an excited face and said: "I don't want the virtuous brother to have such great magical powers, the Jesuits have been preaching on the southeast coast, and they have not yet gone deep into the mainland. I heard that he was quite insightful in astronomical mathematics, and I don't know if I can meet and ask for advice in my lifetime. ”

Liu Ximing immediately asked tentatively, "I don't know who your ancestor is?" ”

"Oh", Zhao Xiangyang replied with a solemn face: "My ancestor was as virtuous as a sage, and he served as the five officials of the Qin Heavenly Prison during the Wanli period. ”

"Hahaha", Liu Ximing's eyes lit up suddenly, his grandfather was also an official in Qintianjian, this is a rare science dog concentration camp in the Meng Dynasty like the Ministry of Industry, and they are all talents.