Wanderer of the whirling world

Chapter 131 Show Your Hands

"Answer?"

Hearing this sentence, all the scholars who were sitting on the ground slamming the triangle area raised their heads and looked at Xin Ziqiu in unison, their eyes full of disbelief.

They had been paddling on the ground for so long, but they still had no clue, so the boy just looked at it with his eyes for a while, and then he came to the result?
This is impossible!

There are too many self-deceiving people in this world. Even if the facts are in front of them, everyone knows that Xin Ziqiu once solved the calculation problem on the gold tablet, and the method he used is also unique, but he is still unconvinced in his heart.

Thousands of years of royal rule have made most people accustomed to blindly believing in authority and despising the backward.

Even if you are a university student, it is inevitable.

It was the first time they had heard of Xin Ziqiu's name, and they had the same general thought in their minds: this is just a little-known junior, probably just lucky and hit the right track.

Especially when they saw Captain Xin with their own eyes today and found out that he was only a teenager, the scholars became more certain of their thoughts.

A fluke, that's all.

Just now when other people were working hard on the calculation problem, Xin Ziqiu stood aside and did not participate. Many people already believed that he was timid when he saw the problem, and he didn't even have the courage to try it. It can be seen that he has no real talent.

Among them, Zhang Yun is the most important.

This Lord Registrar has been in charge of Sitianjian for many years, he is the proud disciple of the late Sitianjian Cheng Chu Yan, and he is also a brother of the same school as Jia Xian. He has made achievements in astronomy and calendar, and is quite famous.

In his heart, arithmetic is an experiential science that needs a lot of time to accumulate and master, and it is by no means something that a genius can comprehend with ingenuity.

Therefore, Zhang Yun was particularly disgusted with the young Xin Ziqiu, thinking that he was just a clown to please the public. He probably used some method to bribe Jia Xian, steal his research results, and use it to promote himself. Lord.

The strange thing is that Jia Xian kept saying good things about him, with an air of admiration.

Hmph, maybe this person surnamed Xin is the future grandson-in-law chosen by Jia Xian, that's why he colludes with him and pushes him to the top position.

The literati became vicious and more imaginative than ordinary people.

Xin Ziqiu looked at the various suspicious looks from the crowd, and naturally understood what was going on in their minds, but he was extremely open-minded in his heart.

He is familiar with the history of mathematics and knows the attitudes of ancient Chinese scholars towards arithmetic.

Everything they do is focused on solving practical problems, they are good at summarizing, and they are proficient in numerical calculations, but as for axioms, logic and deduction have become heresy and left behind.

In ancient Chinese arithmetic, there are very few proofs for problem-solving techniques.

The meaning is obvious. It is to tell everyone that if you encounter the same problem, just follow the steps. Don’t ask why, it’s useless to ask.

Therefore, these famous almanacs are more like reference books or user manuals than textbooks for training and educating people.

This attitude of not seeking deep understanding is the limitation of the ancient people's thinking, and it is also one of the reasons why ancient China has developed science and technology, but has never developed a systematic mathematical theory.

If Xin Ziqiu wanted to change all this, he had to establish his own authority first, so that he could slowly promote the textbooks he wrote and a set of thinking methods derived from modern mathematical theories.

Of course, the deduction and induction from the West may not be the best, but there is no doubt that this is a very good starting point.

Therefore, he was not polite, but instead wanted to show off, deliberately showing off in front of these scholars and great Confucians.

And they can't give them a chance to doubt and question themselves, they must calm everyone down at once.

He walked up to the stone door with a smile on his face, without saying a word, but picked up two stones marked with "eight" and "four" from the ground, and inserted them directly into the hole on the door.

Everyone turned pale with shock, and just wanted to stop it, but Xin Ziqiu moved so fast that they didn't even have time to react.

Zhang Yun shouted:
"Xin Ziqiu, what are you doing..."

Excited, he called him by his first name, not even talking about basic etiquette.

Xin Ziqiu smiled slightly, but did not explain.

At the moment when the stone was inserted, there was only the sound of the creaking machine spring, and the dust-covered stone door of unknown ages opened in response.

Now the surrounding area was quiet, even Zhang Yun's mouth grew wide, and he couldn't speak the second half of the sentence.

When Taiwei Hong saw the stone door open, he nodded in satisfaction, and prepared to invite everyone to enter.

At this time, Zhang Yun pointed to Xin Ziqiu and said:
"It's a fluke, it's just a fluke! Lieutenant Xin, you have no grounds and no evidence, and you answer without authorization. You are self-willed, so courageous! If your answer is wrong, wouldn't it be a big mistake?"

Jia Xian felt that the senior brother was aggressive and a little too much, so he reached out and patted him on the shoulder, signaling him not to make any more noise.

But Zhang Yun was still relentless, and said loudly to Taiwei Hong:

"Master Taiwei, all of us have worked hard and tried several times in order to obtain rigorous conclusions and numbers. However, Captain Xin played tricks and fiddled with the mechanism by relying on blind guesses. He regarded the trust of the government as a joke, and asked the Taiwei to punish him."

Hong Taiwei looked at him noncommittally, then looked at Xin Ziqiu, and said lightly:

"Lieutenant Xin, Master Zhang said that you just guessed the answer, is there such a thing?"

Xin Ziqiu said lightly:
"Of course it's not based on guessing. Two stones can be combined in ninety ways. The humble job is not so lucky. Just guess right."

Zhang Yun said angrily:

"Didn't you guess it, and you didn't measure it. Could it be that you can see the product of the triclimb with just a pair of naked eyes? Are you a god?"

Xin Ziqiu smiled slightly:
"Master Zhang, why don't we make a bet, if you think it's reasonable for me to explain the art of solving the problem, let me hold a lecture in Si Tianjian and teach the art?"

Zhang Yunwan didn't expect him to propose such a condition, he was taken aback for a moment and said:
"Then what if I think it's unreasonable?"

Xin Ziqiu smiled and said:
"If you want to be beaten or punished, it's up to you."

Seeing his confident appearance, Zhang Yun couldn't help being a little curious, but he still didn't believe that this young man could know the area of ​​a triangle without measuring it himself, so he nodded and said:
"Okay, as long as you make sense, I will let you come to Sitianjian to start classes."

Xin Ziqiu glanced at Taiwei Hong, seeing that he was not in a hurry to urge, but rather interested, so he said boldly:
"Use the small oblique and the middle oblique, and then combine the large oblique, and the remaining half is twenty-four."

Add up the lengths of the three sides and divide by two. Everyone is a person who has practiced arithmetic for a long time, so they don't need to count, they know that Xin Ziqiu's move is correct, but they don't understand his intention.

"Using twenty-four to reduce the oblique, we get fourteen; subtracting the middle oblique from twenty-four, we get seven; twenty-four subtracting the great oblique, we get three. Multiply these three numbers by twenty-four times, we get seven thousand and 56, and the square root gets the product. , is 84. All triclinic shapes can be calculated according to this method.”

This is the famous Hero formula.

Everyone took out their counting sticks to do some calculations, and it was really accurate, and they all thought it was miraculous.

The area can be obtained by only knowing the lengths of the three sides. It sounds unbelievably simple, but when you think about it carefully, it seems to make sense.

A triangle is a stable structure. When the three sides are determined, the shape is determined, and the area is naturally determined.

Zhang Yun is not good at reneging on debts, so he can only continue to question:

"What's the point of your problem-solving technique?"

If it was Xin Ziqiu a month ago, he would have walked away long ago, too lazy to entangle with this person.

But now he has learned well, and in order to achieve his own goals, he sometimes uses some innocuous little tricks.

He played tricks for a long time, deliberately pretending, just to find an opportunity to spread his mathematical knowledge here.

The wisher took the bait, and he caught Zhang Yun.

Xin Ziqiu replied:
"Of course it makes sense, but I can't explain it clearly in a few words. I will naturally start from the beginning when Master Zhang allows me to give a lecture on the number of spells in Sitianjian."

It is not difficult to derive Hero's formula, and no complex trigonometric functions are used, but the basic geometric theorems must be explained first.

Xin Ziqiu was going to take this as a breakthrough, and move all the algebra, number theory and geometry textbooks he wrote to Sitianjian, and then Guozijian.

With the endorsement of these people, he will have the opportunity to promote his mathematical theory and way of thinking to the world.

Although this plan seems extremely grand and cannot be completed in a few months, but as long as he leaves a spark, it may not be impossible for someone to inherit it.

The light of a star can also start a prairie fire.

Zhang Yun's head drooped, he was speechless, after all he is an old pedant, in front of all his colleagues, he couldn't justify that Xin Ziqiu's method was unreasonable.

I have no choice but to bet and admit defeat.

At this moment Hong Taiwei smiled and said:
"Interesting, interesting. I used to think that spells were just side-tracks, but I didn't expect it to have a lot of charm. It really opened my eyes. If Captain Xin goes to Sitianjian to hold lectures in the future, I will also spare time to attend. some."

As soon as this remark came out, all four were in an uproar.

Good guy, a dignified top-ranking official, a favorite of the official family, actually condescends to listen to a lecture given by a fifth-rank captain. What kind of treatment is this?
But in this way, the fact that Xin Ziqiu went to Si Tianjian to start a class was confirmed.

Even Xin Ziqiu himself was taken aback. The mysterious Hong Taiwei always seemed to treat him differently and was particularly interested.

But the more he acted like a smiling tiger, the more vigilant Xin Ziqiu became.

Jia Zhiqing saw Xin Ziqiu being in the limelight, and was happy for him, but she was too embarrassed to congratulate him in person, so she secretly tugged at the hem of his clothes, and the two looked at each other and smiled.

The calculations were done, and the crowd entered the stone gate without wasting any more time.

……

At the same time, the teams of the Lotus Sect and Tianshu Pavilion are still looking for a way out in the labyrinthine corridors.

Hu Shixiu and Ding Ping walked in the front with serious eyes.

Both of them had a lot of blood on their bodies.

There were 22 people in total when they came in, but now there are three people missing, and they don't know where they went.

The rest of the people, more or less, also had some undecided fear on their faces.

Everyone filed forward, and Fairy Jinling from the Doumu faction was the first to ask:

"Ding Ping, we didn't come to this ghostly place with you to send you to death. Before you left, you said that there was a treasure here, and there were also secrets of immortality and otherworldliness, but the result has not been half a day. We killed three brothers before we even got out of the Lao Shizi’s corridor. Why didn’t you mention such a dangerous place before?”

Ding Ping was also extremely depressed, and said angrily:

"Jin Ling, don't talk nonsense to me. Everyone came from Xixia, and you were the one who complained the most along the way. The old man sees you as a woman, and I don't want to be as knowledgeable as you, but you also need to be in moderation. There are treasures Where can there be no danger? If you are afraid, get out of here as soon as possible, and don't disturb the morale of the army here."

Fairy Jin Ling trembled with anger, pointed at Ding Ping and said angrily:

"you……"

"What are you! Shut up for me. If you have the ability, you can find a way to leave by yourself, otherwise you will follow everyone honestly. If you are presumptuous, don't blame me for throwing you into the pond to feed the merman."

Ding Ping was so angry that he rarely saw him, and his usual gentle demeanor disappeared. He called me Lao Tzu, uttered foul words, and didn't care about his status as a famous Kunlun sect.

When Hu Shixiu saw the internal strife in Tianshu Pavilion, he was amused in his heart, and he still smoothed things over and said:
"You two, don't be angry. We have already started our bows and there is no turning back. We can only work together to overcome difficulties. According to this old man, the more dangerous this place is, the more precious the treasure is. Otherwise, how could the ancient warlocks spend so much money on it?" Strength, to set up such strict protection? Don't be restless, maybe the treasure is not far away."

At this moment, Xiao Shen raised his hand with a dull expression, and suddenly said:

"Look ahead!"

Everyone looked in the direction of his finger, and saw a large lotus pond in front of the corridor.

The willow smoke is long, the lotus leaf fields are green and full of vitality.

The whole lotus pond is shrouded in smog, and it is not too far to see, but it is clearly visible that an iron bridge spans the top, leading directly into the mist in the distance, like a sky shuttle.

These people looked at each other in blank dismay, wondering and uncertain in their hearts.

Is this the way out?
Hu Shixiu laughed and said:
"There is nowhere to be found after breaking through the iron shoes. It seems that this iron bridge is our exit, and maybe the treasure is on the opposite side."

Everyone was skeptical, but they followed him onto the bridge.

The fog on the bridge was so clear that it made people feel like they were in a fairyland, but the surrounding area was terribly quiet, with weirdness everywhere.

At this moment, someone exclaimed, and the bloody smell rolled in.

Ding Ping looked down, also startled.

Rao even though he has been on the battlefield for a long time and killed people like hemp, he couldn't help but feel a chill down his spine and a shock in his heart.

I saw that the pool water under the bridge should have been clear and translucent, but at some point, it turned into a piece of thick and dirty blood, with huge bubbles on it, like boiling, and steam rising.

The delicate lotus flowers that were supposed to emerge from the mud without staining them turned into human heads, with men, women, children, and everything on them staring blankly at them on the bridge.

And the connected green lotus leaves also turned into stretched limbs, gradually moving.

Now, even the wily and calculating Hu Shixiu froze, not knowing what to do.

But at this moment, a group of "people" in the blood pool under the bridge stood up one after another, just like this, splashing water, stepping into the void, and coming straight to the people on the bridge...

……

(End of this chapter)