Chapter 53: The Law of Weather and Rain

It was late at night, Yu Shu hadn't slept yet, and there was an oil lamp lit on the dining table, and the knuckle-thick light barely illuminated her vision.

"Boom"

Yu Shu held a simple charcoal pen burned from willow branches in his hand, and wrote the rough paper, his eyes were red due to long night vision, but at this moment, their owner's face was not tired, but excited.

"Sister, you still haven't slept?" Yu Xiaoxiu turned over, saw Yu Shu still sitting there, and couldn't help but call her, it's been almost half a month, his sister doesn't sleep until late every day, he doesn't know what she's busy with, he has seen the things she wrote on those papers, all of them are drawings that he doesn't know, and she doesn't say anything when he asks her.

Yu Shu ignored him, all her energy was focused on the operation in front of her, she was engrossed, the more she read, the faster she became, and she didn't have a trace of extra energy to pay attention to the movements of the outside world.

She is now in extreme excitement, from a modern person to an ancient, in a month, this is the first time she has carried out such a high degree of mental computing, no computer, no calculator, all relying on personal computing power, to operate such a complex data operation, this is an unprecedented challenge for her, she is so strong in her bones and unwilling to admit defeat are all yin* out, clamoring for her to continue.

And the reason why she is like this is because the Qingzheng Daoist taught her that set of formulas about Qimen Dunjia ten days ago.

Yi Xue's family is a faction of Qimen, which is based on the hexagram plate, and the hexagram plate is based on the eight trigrams, which is a medium with complex information, including the heavenly stem, the nine palaces, the eight gates, and the nine stars and eight gods, which is based on time and space for divination, because the pattern of each hour of the year is different, so the information arrangement of these times and space is also different.

For example, in the simplest application of "Eight Doors of Good Fortune", the "Sheng" door of the Eight Gates can be used to seek wealth and medical treatment, assuming that on the day of the first day of the first day of the year of Renchou, on the hexagram plate, the birth gate of the Eight Gates is in the "Kan" position, that is, the west, then going out to the west, it is very likely to generate wealth and luck.

The general outline of Qimen Dunjia in the book "Yanbo Fishing Song", the whole article is more than 1,600 words, which is the law of teaching people to arrange the plate, but to apply what they have learned, it is quite troublesome, in the Sanjue Library, some students can't even memorize it, let alone arrange the hexagram according to this general outline.

And the set of formulas taught to Yu Shu by Qingzheng Taoist is not so much a formula, but a formula, not a formula for calculating hexagrams, or a formula specifically for the eight corresponding directions of the eight trigrams.

There is no need to arrange awkwardly, and there is no need to prepare eighteen live disks to calculate a complete hexagram disk, which position you need to find, you can calculate which position, simple, convenient and accurate.

After learning such a professional counterpart, Yu Shu was quite stunned.

Qing Zheng Daoren's original intention was to let her write down this set of formulas, and then slowly teach her how to calculate, in his words, within three months, Yu Shu would be able to learn and apply the "Eight Doors of Good Luck".

Three months is much shorter than three years.

However, Qing Zheng misestimated one thing, Yu Shu really can't even write well, she is a beginner who is easy to learn, but she is an elite talent in mathematics, and her mathematical theories and mathematical knowledge far exceed that of this era for more than 400 years.

Yu Shu did not show surprise in front of Qing Zheng, let alone refuse his rough mathematical guidance, but copied the mantra home, out of the curiosity of mathematicians, she carefully calculated for a few days, and then gave birth to a bold hypothesis-

Since there can be such a set of calculations for finding the directions of the eight gates, then all the information in the Qimen can be substituted into the formula.

The scope of application of "Eight Doors of Good Luck" has limitations, just take one as an example, Yu Shu wanted to know the weather prediction of Lu Dao at the beginning, but it couldn't calculate it.

For this reason, she specially asked Yu Xiaoxiu for a hexagram, how to judge a sunny and rainy day from the hexagram game, and use it to test it, on the basis of the set of formulas taught by Qing Zheng, substitute into it, and find out the formula for judging the weather and rain, if her hypothesis is true, then she can deduce a set of unique calculation methods, more precisely, the equation.

It's a crazy hypothesis, and if it succeeds, she has a hunch that it will be the biggest capital she has ever had in this era.

Yu Shu is quite good at reverse operations, especially specialized in statistical probability, she spends all her spare time these days deducing, and records the weather changes every day, mistakes again and again, and falls into predicament again and again, which boosts her arrogance to seek knowledge-

It will definitely succeed

"Bang"

Yu Xiaoxiu was drowsy, and suddenly heard a loud noise, so frightened that he sat up suddenly, turned his head, and saw the side of the dinner table in a faint light, Yu Shu beat the table twice excitedly, scratched his ears and cheeks, pinched a piece of paper in his hand, and looked ecstatic.

"Sister?" He put on his shoes, and before he got closer, he was hugged by Yu Shu, picked him up and turned around in place twice, and he was so shocked that he almost cried out.

"What are you mad about?" Although Yu Xiaoxiu didn't know what Yu Shu was happy about, he was still infected by her, and hesitantly raised his hand to pat her on the back, and laughed.

"Ha Lu Ha, Xiao Xiu, Xiao Xiu, you don't know the way, you don't know the way, Ha Lu haha" Yu Shu hugged her little brother vigorously, so as to vent the joy in her heart, and pinched the fruits of her labor these days.

She still figured it out, an equation for calculating weather and rain, accurate and simple, and this was just the beginning, and she still had to collect more calculation rules.

Outside the window, the moon and stars are scarce, a blind star in the north flickered, and somewhere outside Yiyang City, someone looked at the sky and frowned tightly.

Yu Shu fell asleep at dawn when she was excited, and Yu Xiaoxiu didn't wake her up in the morning, she slept directly until lunch.

"Sister, sister, don't sleep, get up quickly, I have something to tell you." Yu Xiaoxiu sat on the edge of the bed and shouted, but he didn't put down his schoolbag.

Yu Shu was actually awake, but he was too lazy to get up in bed, so he turned over, rubbed his eyes, yawned and asked, "What?" ”

Yu Xiaoxiu took out a piece of hard note from his schoolbag and gave it to her, and said angrily: "Xue Wenzhe has recovered from his illness, and he will set up a drink and dinner in the Drunken Immortal Building tonight, this is a post for you." ”

Yu Shu took it and took a look, it was very good, he didn't recognize two words.

Yu Xiaoxiu looked at her expression, "Are you going?" ”

"Go," Yu Shu said without thinking about it, "Of course I went, I won't go for anything to eat and drink for nothing." ”

Yu Xiaoxiu lowered his head, "I don't really want to go." ”

"What are you doing?"

"We don't have a good relationship with him, so there's nothing to say when we go."

Yu Shu sat up, stretched his waist and said, "If it's not good to say, don't say it, just bring your mouth to eat, go, just treat it as accompanying me." ”

Yu Xiaoxiu thought about it, nodded, agreed to it, and asked: "What were you crazy about last night, the third watch didn't sleep in the middle of the night, and he was scared to death." ”

"Hehe, it's nothing, go pour me a bowl of water, my throat is dry," Yu Shu confused, because there was no way to explain, she couldn't explain some things to Yu Xiaoxiu for the time being.

After eating, Yu Shu did not take out a pen and paper on the table to do calculations like a few days ago, but changed into a well-fitting men's clothes, and the third room of the first month rewarded the cloth, Yu Shu sewed a set of blue cloth shirts for her with Aunt Liu, put on white socks and black cloth shoes, and put a hairband on her forehead, when she was a clever and well-behaved offspring.

She disguised herself as a boy and went out, ready to go to the long door shop street to have a look.

Since the end of last month, after she and Cao Zixin had a meal of wonton noodles and separated, Mian Zhai closed the door, at first she went to visit every day, and then she was busy with arithmetic, and she didn't run there for ten days and eight days.

The pocket money is almost used, because she has pinched a method of calculating the weather and rain, she plans to do something else to make money, before that, it is best to find Cao Zixin and say hello to him.

There were not many people on the street, Yu Shu slipped to the back street, and not far away, he saw the door of the Mianzhai store, which had been closed for a long time, open, stunned, and ran over.

With a pestle at the door, I saw Cao Zixin, who was placing things under the shelves in the store, jumped forward happily and slapped him on the back:

"Shopkeeper's"

Cao Zixin's hand shook, and he almost dropped the inkstone of ten taels of silver, turned around and saw Yu Shu who was smiling, and his face showed surprise:

"Ah Shu"

Yu Shu shook his hand, saw that his brows were not wrinkled, and secretly said that this person was thick-skinned, and said with a smile on his face:

"Shopkeeper, where have you been these days, I still don't do business anymore, when did you come back?"

Cao Zixin put the inkstone away, led her to sit down behind the counter, and said:

"Didn't I go out to visit a friend, just when there was an accident at his house, I stayed to help, it was only dealt with a few days ago, I reopened the door two days ago, and I didn't see you coming, and I don't know where your house is, just when you don't do it."

Yu Shu was dissatisfied:

"What, I had to run here every day for the first few days, and besides, I took a few days' wages from you for nothing, how could I say that if I don't do it, I won't do it. It's just that every time I come back, I see the shop closed, which is strange and uncomfortable, so I want to come back every few days. ”

Yu Shu's words are not adulterated, Cao Zixin is the first stranger who came to her to help her in this ancient time, gave her a job, accompanied her to burn paper money, and taught her to read and write, no matter whether people treat her or not, she treats him as a friend.

Cao Zixin saw this child's aggrieved appearance for the first time, his delicate facial features collapsed, and he was as squeamish as a girl, he must have been really uncomfortable, his heart softened, and he said softly:

"I know that I have heard what the shopkeeper Wu said, it is me who is not good, and I closed the store door these days without saying hello to you, making you anxious."

Yu Shu waved his hand generously, "It's okay, it's okay, by the way, I'll tell you in advance, I'll stop doing it for a few days, you can find another guy." ”

Cao Zixin was stunned for a moment, "Why didn't you do it?" ”

Yu Shu leaned on the counter with one hand on his cheek, looked sideways at the handsome shopkeeper, blinked, and said half-truthfully:

"It's not too long to work for people, and I plan to make money by doing my own business."