Da Wei Chun

Chapter 302 Star-gazing Lang, not star-gazing

The two old men sat in the hall, looking at Li Chengzhi very curiously.

On the left is Liu Fang, and on the right is Cui Guang.

The other courtiers only knew a thing or two about Li Chengzhi through the performances of Xi Kangsheng and Gao Meng.However, Liu Fang and Cui Guang had many contacts with the Guanlong family, especially the Li family in Longxi.Moreover, the disciples of both of them went to Jingzhou with Gao Meng when they were in Zuojin, and even had a face-to-face meeting with Li Chengzhi, so they need to know more, knowing that Li Chengzhi has real skills and can be called an all-rounder.

When they heard that Li Chengzhi was appointed as Hou Xinglang by the emperor Yukou, the two couldn't help being curious: Could it be that Li Chengzhi's star-gazing and divination skills are as amazing as his poetic and general talents?

That's why there is this scene in front of me.

Li Chengzhi was also a little apprehensive: As soon as he entered the Yamen, he was summoned by these two people. I don't know if it was a good thing or a bad thing?After all, when I was in Jingzhou, I had a bad fight with these two disciples.

He was also mentally prepared: it's no big deal to be ridiculed a few times, as long as he doesn't scold his mother.

One is that Liu Fang and Cui Guangjun are well-educated people, no matter how arrogant he is, he dare not pretend to be big, or talk big, otherwise it will be like a joke.

The second is that these two are loyal, upright, strict and good people. In order to improve the status of the Han family gentry and make the people of the Han family live better in the process of Sinicization of Yuan Hong hair.For this alone, it's hard for Li Chengzhi not to respect him.

After a long period of silence, Cui Guangcai said curiously: "You must have some ability to be granted the title of Hou Xinglang by His Majesty personally. Presumably you are already proficient in "Gan Jing" and "Xing Jing"?"

Li Chengzhi was a little confused.

He only knew that these two books were the earliest systematic astronomical masterpieces in Chinese history, but he had no idea what was written in them.

Li Chengzhi replied honestly: "I have never practiced it!"

Haven't even learned these two books?

Cui Guang was stunned for a moment, and then asked again: "Isn't it that you have studied "Five Stars" and "Tianguan Shu" for a long time?"

Li Chengzhi was even more confused, shaking his head like a drum.

The second book is known to be written by Sima Qian, and it is an early Chinese astrology.He hadn't even heard the name of the first one.

Where did Li Chengzhi learn the skills of stargazing and divination?Have you ever heard of the family biography of the Li family who lived in the ancestral home?

Liu Fang wondered: "Could it be true that the wisdom of God was given by God, and you can learn without a teacher?"

Li Chengzhi's hair stood up in shock.

Who the hell passed this on?
will die...

"Siqing sees clearly, this is definitely a rumor!"

Li Chengzhi couldn't sit still, so he stood up suddenly, "The official is even more frightened... To tell you the truth, whether it is astrology or divination, the official really doesn't know anything. I can't figure it out, why did your majesty click?" An official 'Hai Xinglang'?"

The two old men were stunned: It means you don't know anything?

Then what does His Majesty mean by appointing you an official?
After pondering for a while, the two looked at each other, and when they saw the smile in each other's eyes, they knew they had guessed a piece: So that's it?

If we say that the most unpopular and boring department in Beijing is the Taishijian.Even the imperial mausoleum can't compare.At least he can still hunt while guarding the mausoleum in the mountains, but this Hou Xinglang can only blow cold wind...

After a long time, Li Chengzhi was assigned to the Taishijian?

Look, you have learned a lesson, Gao Zhao is also something you, a young man, can offend?
How dare you say "I want to marry both of you"?
If you don't sit on wax, who will sit on wax?
The more Cui Guang thought about it, the more funny it became, and he couldn't help but tease him: "It's okay, just consider it as an art study... I heard that you are proficient in all six arts, and you can master all kinds of schools. Poetry, song, and military training are even more easy. You have also learned astronomy, astrology, and divination, who dare to say that you, Li Chengzhi, are not all-rounders in the future?"

Is this complimenting me or scolding me?

Li Chengzhi cursed secretly in his heart, and replied in a low voice: "The wine is too much for the prize, and the lower officials at most read a few more books in their spare time, and never dare to call them 'proficient'!"

Quite humble?

Liu Fang smiled, and said seriously: "Although Changren is joking, it is not unreasonable. If you don't move you out of the Taishi Supervisor for a day, you can't waste your time here for a day. Let’s get by? It’s good to learn one more skill... Let’s learn arithmetic from a doctor of arithmetic first..."

Li Chengzhi was taken aback for a moment: What is it, why is it involved in the calculation?
After thinking about it for a while, he suddenly realized: the work of the Taishi Supervisor is really inseparable from arithmetic.

Whether it is astronomy, calendar, astrology, divination, etc., it is necessary to calculate the operation laws of the sun, lunar, five elements, and 28 houses before deriving calculations.It can be said that nothing can be played without mathematics.

But the problem is, elementary school, junior high school, university... I have been studying for almost 15 years in total, and I still have to learn after time travel. Do I have to be so hard?
Seeing him stunned, Liu Fang asked suspiciously, "What's wrong?"

Li Chengzhi was shocked.

Dare to be humble now, it is definitely the fate of being taught the four arithmetic operations of addition, subtraction, multiplication and division.

He gritted his teeth: "Don't dare to deceive the minister, the way of calculation, the lower officials still have some experience!"

How much experience do you have?
Hearing this sentence, Liu Fang and Cui Guangmeng recalled what Li Shenjun and Yang believed in: Before competing with Yangshen, when Li Chengzhi talked about the skills of all kinds of crafts and military battles, he also said, "How many times are there?" Distracted"?
But what?

Looking at the Yuan and Wei Dynasties, there are really not many people of the same age who can surpass him in these two aspects...

So it seems that his attainments in arithmetic are not low, but he has never heard of it?

Cui Guang looked at him suspiciously: "Have you really learned it?"

Li Chengzhi nodded heavily: "I really learned it!"

He must have learned it before, but Li Chengzhi just didn't know which stage he was in at this time.

There must be a Pythagorean theorem, which is all knowledge from the pre-Qin period, including the ninety-nine multiplication table.

Zu Chongzhi should have been dead for several years, and pi must have been studied to seven digits after the decimal point, but it has definitely not been passed on to the Yuan and Wei Dynasties.Otherwise, why would the imperial court go to such lengths to reintroduce the calendar?
Wouldn't it be better to use Zu Chongzhi's "Da Ming Calendar" directly?
The rest of Li Chengzhi didn't know.He was not afraid of being stumped by Liu Fang and Cui Guang, but he was afraid that he would be too far ahead and scare the two old men.

I really want to wear the hat of "God-given, self-taught without a teacher" to myself, and there will be nowhere to cry when the time comes.

Li Chengzhi glanced at it stealthily, and then said cautiously: "If you don't have a few questions about the wine?"

"Well, that's fine!"

Cui Guang nodded, and pondered for a while: "Now there is a log buried in the wall. I don't know its size. I saw it with a saw. It is one inch deep and the sawing path is one foot long. What is the diameter?"

Li Chengzhi heaved a sigh of relief: I just thought of the Pythagorean theorem, so it's here?

Even after graduating for several years, how could such a formula be forgotten?

He did a silent calculation, and checked the calculation twice. It took about ten breaths, and he came up with the answer in about half a minute: "Should it be two feet six inches?"

Liu Fang only thought that he had studied the "Suanjing" and read the questions, so there was no difference, but she nodded slightly to indicate that you remembered correctly.

But Cui Guang had a trace of doubt in his eyes: Li Chengzhi clearly didn't remember it, but calculated it...

He asked calmly again: "Today, I hope to see the island. I set up two watches, three feet in height. The front and back are separated by a thousand steps, so that the back watch is straight with the front watch. From the front watch, I walk 120 and three steps, and look at the island with my eyes. The peak joins with the end of the watch. Walk 120 seven steps from the back watch, and look at the peak of the island with one’s eyes, and also joins with the end of the watch. Ask about the height of the island and the geometry of the watch?”

Li Chengzhi was a little curious.

This involves the sine and cosine theorem of triangles. It should be the mathematics knowledge of the third grade of junior high school, but it is already available in this era?

Of course, Li Chengzhi, who majored in exploration, would definitely be troubled by such a topic.

It was also as large as more than ten breaths, and Li Chengzhi gave the answer: "55 steps in the fourth mile of the island; 150 steps in the [-]th mile of the island."

Cui Guang stared at him intently, as if he was not panting, and asked another question: "Today, there is one rooster worth five; , ask how much is the rooster, mother and chick?"

Haha... Li Chengzhi almost laughed out loud, isn't this a chicken and a rabbit in the same cage... Oh no, it might be more difficult.

Chickens and rabbits in the same cage are linear equations in two variables, but this question is a system of indeterminate equations in three variables, and there are multiple answers.

But it's not difficult. If you change to a smarter elementary school student, you should be able to calculate the column multiplication formula and then eliminate it, but the waste time is a bit long.

If he wanted to formulate an equation, it would be difficult for Li Chengzhi to secretly write and calculate in his sleeve.He thought about it, and felt that these two people would never understand anyway, so he stretched out his hand generously, and stroked in the palm of his hand:

x+y+z=100...

5x+3y+(1/3)z =100，(1/3)z为整数……

He was still muttering: "Let's let the officials do the math..."

Liu Fang finally realized what was wrong: This Li Chengzhi didn't even need to count?
He asked in surprise, "What's your calculation?"

Li Chengzhi lied without blinking: "It's just a nine-nine calculation formula, but the lower official has a good memory, so there is no need to calculate..."

The old man can memorize the Five Classics backwards, how can I not have such ability as you?

Are you a liar?

Liu Fang's beard flicked, and she was about to reprimand him when Cui Guang gave him a wink.

It means don't worry, just take a look.

He has long since realized that something is wrong: these three questions are all classic questions in arithmetic. If Li Chengzhi has really studied arithmetic, he has a good memory as he himself said, and he must remember the answers. Naturally, it is right to blurt out. No need to count.

And if it is calculated, at least the last two questions must use calculation chips, but Li Chengzhi just uses his fingers?
At this point, Cui Guang couldn't see that Li Chengzhi was not only lying, but also had some new solution?

The two old men didn't speak, they just made eye contact, and after a few breaths, they both smiled sinisterly.

No matter how good your pretense is, you still have to show your feet under the nose of the old man.

Li Chengzhi counted as being devoted, but he didn't expect that the two old foxes had already seen the flaw.This time it took a little longer, about thirty or forty breaths (2 minutes), and he gave three sets of answers:
"The fourth old man is worth 54 coins; the eighteenth mother is worth 78 coins; the young child is 26 coins and is worth [-] coins.

Weng eight, worth forty; mother eleven, worth 33; chicks 81, worth 27.

Weng 84, worth 28 coins; mother [-], worth [-] coins; chick [-], worth [-] coins. "

It's not bad at all, and so fast?

Liu Fang and Cui Guang were surprised, but they didn't show the slightest bit on their faces.

Li Chengzhi really made it clear: Even Cui Guang needs to use calculation chips to formulate multiplication formulas for this problem, and then eliminate them one by one, and there are quite a lot of multiplication formulas, and the shortest time he spends is more than half a quarter.

If you don't need to count ... then it is absolutely impossible, who has a good memory to that extent?

If Li Chengzhi didn't have a new solution, they wouldn't even believe it...

"Do you really have some experience?" Cui Guang asked meaningfully.

Li Chengzhi couldn't hear the sarcasm in his words, and smiled modestly: "The sacrificial wine is overrated, it's just that the lower official's memory is better..."

Liu Fang almost poohed him.

At first glance, this is a trick, and I am afraid that I will not be able to ask anything if I press it.After pondering for a while, he asked again: "Which city do you want to go to?"

Li Chengzhi was overjoyed: This is still an option?

Before he came here, he made a special effort to find out: Taishi Supervisor Hou Xinglang has a staff of twenty, and he is only one of them.

And these 28 Hou Xinglang have their own duties: the sun, the yin, the five elements, the [-]th house and so on.In addition, each will be divided into ten members, belonging to Taili and Taibu.

The former deduces the calendar and agricultural time, the four seasons and 24 weathers, while the latter predicts good and bad fortune, auspicious days of the zodiac, and even interprets the emperor's dreams?
Believe it or not is the second thing. The key to this business is that if you are not careful, you will lose your head. Li Chengzhi knows which one is better when he chooses with his toes.

He bowed down: "I really don't know anything about the art of stargazing, so I chose Taili. It's best not to watch the stars, but it would be even better if I have a job in arithmetic..."

Good job, Taili Cheng, maybe I can reverse what day it is in the Gregorian calendar.Regardless of the rest, at least there is no need to set the leap month.

Or ask Nanchen, who is returning from the north, to see if he can get the "Daming Calendar" from Zu Chongzhi's son, so that Liu Fang and Cui Guang can learn from it.

I don’t know the rest, at least Li Chengzhi knows that the calendar created by Zu Chongzhi is the most accurate of all the calendars before the Yuan and Ming Dynasties...

The two old men almost sneered: "That's a lot to ask for?"If it were just another person, he would have been beaten out with a stick...

"Okay, it's up to you!" Liu Fangfeng nodded calmly, "I promise you to take a rest today and see things tomorrow at Chenshi (seven o'clock in the morning)!"

Really don't need to blow dry?
It’s okay in summer, but when it comes to winter, that crime is really not for human beings...

Li Chengzhi was secretly happy: "The lower official thanked the minister of the temple and the sacrificial wine..."

"Well, let's go!" Liu Fang waved his sleeves.

After Li Chengzhi left, the attendants closed the door for them, and Liu Fang asked suspiciously: "Brother (the two are cousins), can you see what algorithm Li Chengzhi used?"

"It was too confusing to see clearly, but what he was reciting silently was indeed Jiujiuge..."

"Nine Nine Songs? That should be his own algorithm... No wonder he can create his own military formation technique?"

Liu Fang sighed softly, "This Gao Zhao is really harmful. He is so virtuous, but he can't give full play to his talents?"

According to his thinking, no matter how much Li Chengzhi knew, he couldn't make as much contribution as Mu Shou or the conquest, but he insisted on being suppressed by Gao Zhao as the eunuch?

Cui Guang smiled: "It may not be Gao Zhao's intention, brother, don't forget, Li Chengzhi just knocked out King Ruyang's teeth the day before yesterday..."

Liu Fang was stunned.

He really forgot about the emperor.

"This temper is indeed a little blunt, so it's good to sharpen it!"

"That's true!" Cui Guangfu agreed.

As for whether there would be any hindrance in not letting Li Chengzhi go stargazing, the two brothers were not worried at all.

When you get to your own one-acre three-point land, if you can't even do this, how can you serve as a sacrificial wine and temple minister?

(End of this chapter)