Oh? What but me? Lin Wanrong couldn't help but gasp, what does this Lao Xu mean, is there something in the words? I don't have a problem with your idea of beating me, but the point is that your girl is not in the right way with me now.

The eldest lady saw Xu Wei and Lin San talking, and saw Miss Xu's miserable face, so she took her hand and said, "Sister Xu, Miss Su, Lin San is a rotten mouth." Let's not listen to his nonsense. Let's go, let's go in, I've got something good for you. ”

Lin Wanrong knew that the eldest lady was going to send perfume out, so she couldn't help laughing twice, the eldest lady turned red, glared at him, took the account book, and pulled the two women into the inner courtyard.

"Little Brother Lin, Little Brother Lin, do you hear me talking to you?" Xu Wei's voice sounded in his ears.

"Ah, haha, I heard, I heard, what is that-" He snorted: "Mr. Xu, let's talk about these things later." Look at this portrait first, do you know this woman? ”

He took out a portrait from his arms and handed it to Xu Wei, Lao Xu took the portrait, only to see that this painting brush is unique, the edges and corners are concise, and the painting is a fluttering woman like a fairy, with a beautiful demeanor and appearance. He looked at it carefully for a while, frowned, and said, "It seems that I have some impressions, but I can't tell where I have seen it." ”

Lin Wanrong was overjoyed, grabbed his arm and said, "Mr. Xu, think about it again, have you seen it in the palace?" ”

Xu Wei shook his head and said: "I just look at it and seem to have an impression, as for whether I have seen it, I am not sure." ”

Lin Wanrong said: "Then Mr. Xu has not seen the second princess of the current emperor?" ”

Xu Wei smiled bitterly: "Second princess? I still saw her when she was young, in the past ten years, she has lived in a simple and low-key manner, and the only people who have seen her are afraid that the emperor is the emperor. I am very familiar with the eldest princess, but the eldest princess has not met the second princess a few times, alas, this involves a secret matter when the emperor ascended the throne. Don't mention it. ”

Lin Wanrong said: "Then Mr. Xu, take a look, does this young lady look like the eldest princess or the emperor?" ”

Xu Wei glanced at it and said with a smile: "Little Brother Lin, you ask me so many words, isn't it the second princess in your painting?" ”

Lin Wanrong nodded and said: "I don't know very well, but I just have some doubts, if this is really the second princess, then there should be some resemblance between her and the emperor or the eldest princess." ”

Xu Wei shook his head and said: "Although the appearance of a person is taken from his parents. But it is also very different from parents, and it is too biased to judge blood relations based on appearance alone. Royal blood relatives, even more so, princesses of all dynasties. There is no such thing as an ugly person, why is that? Because as an emperor, he has a majestic temperament, and his appearance will never be too bad, and as a concubine, he is even more beautiful, so the princess born combines the advantages of her parents. Most of them are abnormally beautiful, because the majesty of the emperor is not suitable for women, so most of these princesses inherit their mother's appearance, so they say that the eldest princess, she inherited her mother's appearance, and the second princess is the same. These two princesses are half-sisters, and it is normal that they do not look alike. ”

Lin Wanrong was suddenly a little disappointed, if Qingxuan's appearance was similar to that of the eldest princess or the emperor, it would be much easier to judge, but Lao Xu threw out a remark that "the royal princess looks like her mother". It seems that it is really difficult to know Qing Xuan's identity just by her appearance. Do you really want to make some more credit, wait for the emperor to open the golden mouth and invite Lao Tzu into the inner palace?

Seeing that she couldn't find a breakthrough from Lao Xu, Lin Wanrong was also quite helpless in her heart, Qing Xuan, Qing Xuan, are you a princess?

The two of them talked about some gossip again, Lin Wanrong talked about him left and right about what kind of military matters, one moment said that the frontier is so far away, and the other time said that our army is really strong, and he talked to this kid for a long time, and he didn't figure out whether he wanted to go or didn't want to go. The first bachelor meets the first slippery head, and there is no way.

When Lin Wanrong and Lao Xu entered the inner courtyard, they saw Su Qinglian and Xu Zhiqing taking a bottle of perfume and fiddling with it curiously, Miss Xu's face seemed to look much better, she applied some perfume on her crystal jade wrist, sniffed it gently, and said with a hint of joy on her face: "Sure enough, it is fragrant but not strong, charming but not vulgar, good sister, this is really a good thing, I like it very much, and if there is it, I want another bottle of orchids." ”

Khan, with a bottle of roses in her hand, and another bottle of orchids, which tune does this girl like? Is it sometimes pure, sometimes coquettish? The strange woman really has a different taste, and her taste is very similar to mine.

Su Qing smiled pitifully: "Zhiqing, this perfume can't be grabbed in Hangzhou, the price has increased several times, and such a small bottle has been fried to three hundred taels of silver." The ladies and ladies in Beijing have also begun to circulate, but the number is too small, and very few people know about it. When you open your mouth, it's a few hundred taels of silver. ”

Xu Zhiqing smiled and said, "Auntie, I naturally know." The first time I met Sister Yuruo, she was so generous, if I didn't want a bottle anymore, wouldn't it be a loss, besides, Sister Yuruo is also a smart person, she is asking us to do publicity for her. ”

The eldest lady saw that a tall woman like Xu Zhiqing loved this perfume, so she was naturally full of joy and said with a smile: "It's okay, I'll give Sister Xu and Miss Su a bottle of orchids each, this is the secret method of brewing our family forest, and there is no place to find anywhere else." ”

Miss Xu glanced at Lin San and let out a faint sigh. Lin Wanrong touched her nose and said in her heart, I thought you heard that I made the perfume, and I would return these two bottles to the eldest lady, according to the black market price, this is six hundred taels of silver.

was thinking about it, but saw Xu Zhiqing holding the eldest lady's account book, and slowly walked over and said, "Lin-Lin Gongzi, I have something I want to ask." ”

Xu Wei saw his daughter talking to Lin San, and immediately laughed and said: "You two are both very knowledgeable, you should talk more, eldest miss, the old man is in your mansion today, begging for a glass of water and wine, Qing Lian, go and get the piano, today is in a good mood, let's sing a little song, and have fun with the eldest lady Lin and brother-"

Damn, if I say a word to your daughter, you are singing and dancing, drinking and eating, I am the one who contributes, and you are the one who enjoys it, is there any reason? Lin Wanrong snorted and said, "Ah, Miss Xu, do you want to ask?" Later, I also want to listen to Miss Su play the piano, alas, speaking of which, I also like to talk about love, but I don't talk about it well, and I didn't talk about a few. ”

Xu Zhiqing nodded lightly and said, "I originally wanted to ask Lin Gongzi about Arabic numerals, but since you are not free, then forget it." ”

Lin Wanrong was shocked: "Do you know Arabic numerals? ”

A hint of slyness flashed in Xu Zhiqing's eyes, and she said with a smile: "Let's listen to Aunt Su play the piano first, doesn't Lin Gongzi like it very much?" ”

Damn, this girl is pure revenge, Lao Tzu will fall in love with you today, he smiled and said: "In that case, forget it - alas, I originally wanted to discuss with Miss Xu about the calculation method of this Arabic numerals" - alas, let's talk about love, let's talk about love!" ”

Both of them have ghosts in their hearts, and they are secretly competing, and the comparison is patience to see who surrenders first.

After walking a few steps, Lin Wanrong remembered that she wanted to spread Arabic numerals in this world, although this is a foundation, but if it is done well, it will definitely be a major event for the benefit of the country and the people, maybe Dahua will start to catch up with the pace of Europe?

Lao Tzu doesn't know how to make cannons, he doesn't want to make gunpowder, but if I spread the foundation of mathematics and science, it will be for the benefit of all generations. Xu Zhiqing has perseverance and perseverance, and knows these Arabic numerals, why should I delay this opportunity for the sake of vindictiveness.

Thinking of this, he suddenly stopped and said solemnly: "Miss Xu, I won't be angry with you anymore, let's talk well, no matter what you think of me, when I talk nonsense, when I don't learn and don't know how to do it, I want to say that this Arabic numeral and the calculation method based on this time is an extremely great invention, without it, there is no Westerner power." With it in hand, Dahua may be a new era. ”

Xu Zhiqing saw that his expression was extremely serious, and he seemed to be a different person from the angry young man just now, and couldn't help but sigh: "How do you say that you can change, this Arabic numeral is transmitted by Westerners, and it has been recorded on the coast, and I also saw a slight record in the miscellaneous books translated by the Yorkie missionaries, and today I saw you counting with Arabic numerals in the account book of the eldest lady, and I was curious, so I asked the question, is this Arabic numeral, is it really as powerful as you say?" ”

"It's not powerful, I said it doesn't count, so let's do it, you come up with an arithmetic problem, let's do the math together, and prove it." Lin Wanrong said.

This is indeed fair, Xu Zhiqing nodded, thought for a while, and said, "Then I'll come up with a question." A chessboard with five horizontal and two vertical squares has a total of ten squares, the first grid puts one tael of silver, the second grid puts two taels, the third grid puts four taels, and so on, to fill all ten squares, how many taels of silver do you need? ”

I saw Miss Xu take a pen and paper to calculate. Lin Wanrong calculated and said with a smile: "Don't count it, one thousand and twenty-three taels." ”

This question was made by himself, he definitely couldn't cheat, Miss Xu exclaimed, "How did you calculate it?" Could this be the calculation of Arabic numerals? ”

Lin Wanrong smiled: "I can't tell you now, when you learn to use Arabic numerals, you can deduce these formulas yourself, Miss Xu, you have a lot of knowledge, can you tell me, do you think it's convenient for you to use the calculation method you are currently using?" ”

Xu Zhiqing thought for a while and said, "I didn't think it was complicated before, but I just saw you count, it seems that I have to reconsider this issue." ”

Lin Wanrong nodded and said, "Let me tell you, whether it is an astronomical calendar or an engineering calculation, these Arabic numerals are the most useful means of calculation." If you want to learn, I'll teach you this. I don't expect you to think about me, I just hope that you can learn these things well, and then teach them, so that more people who are interested in mathematics and engineering can join in, and everyone will brainstorm to carry forward this mathematics, and if possible, compile them into a book and pass them on. With that, I'm satisfied—what do you think I'm great? I'm telling you, don't have a cult of personality, I'm afraid something will go wrong. ”

Xu Zhiqing shook her head and smiled: "You person, I just thought you were a little serious, but you have changed again, I have memorized what you said, in fact, this is what I have been doing." ”

Lin Wanrong is determined to pass down this calculation method, in the face of Xu Zhiqing, a student, he spoke very carefully, but unfortunately he has not been a teacher, and when it comes to primary school mathematics, he also has a feeling that he doesn't know where to go.

This Xu Zhiqing is really smart, and she is already familiar with these Arabic numerals. Lin Wanrong only talked about the four calculations once, and she understood, which made Lin Wanrong secretly smack her tongue - this girl is much smarter than when I was in elementary school.

Seeing that she was so studious, Lin Wanrong simply didn't do anything, and taught her what exponential operations she did, regardless of whether she understood it or not, let's talk about it first, in this case, Lao Tzu can only cram for teaching, if you want to understand, you can study slowly after class.

After talking for half an hour, Lin Wanrong's tongue was dry. Xu Zhiqing sighed: "These Arabic numerals are really exquisite. With these counting methods, we will be able to go further. ”

Lin Wanrong nodded and said, "Miss Xu, how much have you written down?" ”

Xu Zhiqing lowered her head, her face was a little red, and she said softly: "I just wrote down ninety percent, and the last index has not been through." ”

Khan, sure enough, is a genius. If I continue to talk about it, I will prove the Pythagorean theorem to her, enough is enough, Lao Tzu's task is completed, and the rest is up to her to comprehend.

He had met Xu Zhiqing a few times, and when he saw her blushing for the first time, he couldn't help but laugh in his heart, and sighed with a straight face: "Alas, that's it, among the students I have taught, you are the slowest to comprehend." ”

Xu Zhiqing is not so easily bluffed. He looked up and smiled: "You don't blush when you tell lies." However, I am curious, you are not a smart person, and you don't know the knowledge of Arabic numerals, where did you learn it? ”

Damn, I'm not smart enough, which eye do you see? Lin Wanrong said indignantly: "When you think I'm smart enough, I'll tell you." I'm hungry, eat and go. ”

Xu Zhiqing was stunned for a moment, then giggled, her plump delicate body shook sharply, and she couldn't even straighten her waist......

*************

Today's three chapters, 11,000 words, so tired that I can't straighten my waist. Brothers, smash me with your monthly passes, smash me with your recommendation tickets!