Seeing this, Dai Daojin was a little surprised in his heart.

On the same day, when Xu Weixiong was called over to draw the drawings of the Kunlun Mountain fortifications, Xu Weixiong was very interested in the counting of the mechanisms inside, and couldn't help but ask Dai Daojin for advice.

Dai Daojin talked about it casually, and gave her some questions for her to ponder by herself.

Among them is a problem of quaternary higher order equations.

Dai Daojin was surprised that in addition to the problem of the quaternary higher order equation, there were also binary and ternary questions in front, and Xu Weixiong directly asked the quaternary question, which means that she has already figured out the previous ones.

He secretly said that this girl is quite talented in counting.

However, he was a little surprised in his heart, he didn't have the leisure to teach with all his heart and cultivate him into an arithmetic.

The Kunlun Mountain fortifications are imitated in the previous world, the Western Kunlun patriarch Liang Xiao made the world-destroying artifact "Hidden Dragon", which uses the principle of Western gears and levers, and integrates the endless wisdom of Liang Xiao's generation of great arithmetic, many precision devices in it, various mechanisms of the arts, almost the pinnacle of skills.

Liang Xiao is extraordinary in arithmetic, and the things he created naturally include them.

When Xu Weixiong was drawing, he naturally became interested in these things.

Although Dai Daojin said a little casually, he didn't fool her.

For example, the problem of the quaternary higher-order equation that Xu Weixiong pointed out is not that Dai Daojin makes it difficult for her with modern mathematics.

These things have appeared very early, and it has long been recorded in the "Quaternary Jade Jian", "Litian Yuan is one below, Earth Yuan is one on the left, Human Yuan is on the right, and Wu Yuan is on the top", with "Tai" in the center, and "Heaven, Earth, People, and Things" Quaternary to set the unknown.

The clever ancient arithmetic masters studied the "one gas mixed element", "two gas transformation element", "three cai yun yuan", and "four elephant hui yuan" to deal with the modern one-element equation, binary equation, ternary equation, and quaternary equation respectively.

Therefore, travelers, in ancient times, it is best not to show off in front of real arithmeticians with any one-dimensional two-dimensional or two-dimensional one, otherwise it will be embarrassing.

Because even if at the beginning, they may be a little awkward about the noun name, but after understanding, they can instantly sort out the truth in it, and tell you that this kind of arithmetic is not called that.

Dai Daojin shook his head, raised his pen and drew a few times, and told Xu Weixiong the correct solution.

Xu Weixiong listened to the answer, her eyes flashed, and she found more and more that as she understood arithmetic, combined with the devices on those drawings, the faint knowledge of Qimen Dunjia, Yin and Yang Bagua and other easy-to-learn knowledge.

In fact, she was right, there has always been such a saying, the "origin of numbers" is the Hetu Luo book.

As Xu Weixiong drew more and more pictures, she gradually couldn't figure out what the person in front of her was going to do, all kinds of sophisticated linkage instruments, as well as mysterious Taoist altars, those things in the pictures, she felt that she might not be able to study them thoroughly in her life.

After Dai Daojin finished speaking, he asked, "Did you find the master of civil engineering and the blacksmith I asked you to find?"

Xu Weixiong nodded and said, "It's easy to find a civil engineer, but it will take some time to find a blacksmith who can make such a precision iron as you said." ”

Dai Daojin nodded, not surprised.

In fact, strictly speaking, after the people are found, Dai Daojin will also re-teach them to cast steel, and the smelting technology of this era cannot meet his requirements.

Otherwise, if it is simply improvised, after the thing is made, put it into Kunlun Mountain, activate the formation, and gather a huge amount of energy, I am afraid that it will be difficult to hold on long enough.

Dai Daojin rubbed his eyebrows, and the matter was still not in a hurry.

......

Two months later, in a desolate valley eighty miles west of Qingliang Mountain.

There are rows of huge stone houses, and many of them are filled with clanging sounds.

In one of the stone houses, a sturdy old man leaned over, his rough hand caressed the things in his hands, the silver-white cold texture, revealing the hardness, it was a gear-like thing, but the edge of the gear protruded, extremely peculiar.

The room was dimly lit, and someone strode in.

The old man looked up and saw two people, one was the armored general he often saw, and the other was dressed in a black robe.

When the old man saw the black-robed man, his eyes were excited, and he arched his hand and said, "Sir, please see." ”

Dai Daojin's face was calm, he took a few steps forward, looked at the things on the stone case, and carefully checked it, and the secret path was barely enough.

This place is the place where Xu Xiao set up specifically for him to produce these devices.

In the past two months, Dai Daojin has not been idle, explaining to these masters what is the steel filling method, which is used to manufacture steel in batches to create the precision devices used.

Dai Daojin looked at it for a while, then turned around and left with the general.

Only the old blacksmith was left, looking at the black figure with an excited expression, he knew that if the lord allowed it, then the iron-smelting process in the whole world could be raised to a higher level, which was such an exciting thing.

Dai Daojin didn't know the mind of the old craftsman behind him, except for the back of the stone house, he turned his head to the general and said, "Just start making it step by step according to the standard just now." ”

"Yes. The armored general said yes.

Dai Daojin waved his hand, and his figure flickered a few times, and then disappeared.

......

The Kunlun Mountains stretch for thousands of miles, and the mountains are majestic.

Although Dai Daojin was whimsical, he was not delusional and tried to dig through the entire Kunlun Mountains.

He only took a part of it, but it was also nearly a thousand miles.

At this time, the preparations for the fortifications of Kunlun Mountain have not yet been completed, but Kunlun Mountain is already very lively.

Located near Baishui Town, Ledu County, surrounded by mountains, the terrain is like a lotus, which is wonderful and abnormal.

Originally, three months ago, the barren grass and jungle began to be on the top of the mountain, at this time the houses are located, large and small pavilions and buildings, the shadows are hidden in the dense forest, if you look carefully, you can find that these houses are hidden into the nine palaces gossip, extremely wonderful formation.

And in the place of the lotus flower, a new and sprawling palace sits there.

In front of the palace, there is a golden plaque with three gilded characters of "Pantheon Palace".

At this moment, in front of the hall, two figures, one black and one blue, were standing.

The man in blue was huge, with a feeling of bloated and fat, it was Zhu Lushan, one of Xu Xiao's righteous sons, he looked up at the Pantheon, and said with a respectful smile: "Sir, you let me prepare these, do you want to start a sect and establish a sect?"

Dai Daojin's face was calm, he stretched out his finger to the west, and said: "Starting from this place, the land that stretches for thousands of miles is the scope of the Kunlun Mountain fortifications, Xu Xiao came to do this, and the movement must be not small, so it is necessary to cover it up." “

Zhu Lushan didn't seem to care about the other party's name calling his father-in-law, and said, "You want to establish the Kunlun Pantheon Palace to hide people's eyes." ”

Dai Daojin turned around and walked down the mountain.

"Yes, this place is surrounded by mountains on three sides, and the only entrance to the cliff valley is Whitewater Town, as long as the name of this Pantheon has an effect, it can deter some people. ”

Zhu Lushan thought for a while and said: "When Beiliang arrives, a large number of people and horses will move, which will inevitably attract the attention of some forces in the world...... In case some powerful people come, Mr. Shi will not be here at that time. ”

The implication is that your old man can't be here all the time.

Dai Daojin rubbed his footsteps, and said as he walked: "If I have nothing to do, I will naturally be here." The implication is that if something happens, it will naturally leave.

Zhu Lushan didn't ask any more, he was ordered by Xu Xiao to follow the instructions of this black-robed man to do things, the current Pantheon Palace was established in his hands, since the other party did so, there must be his arrangement.

The two of them were extremely fast, went down the mountain, out of the cliff valley, and entered Whitewater Town.

There are a lot of people coming and going in the town, and the peddlers are pawns, each doing their own thing.

Zhulu Mountain is fat and unusually eye-catching, attracting the frequent attention of people in the town, he seems to be used to it, and he doesn't care.

He looked left and right, and said in a low voice: "Sir, there are many people here, and many labors in the future will have to enter from here, and it is inevitable that there will be negligence and be mixed in, why don't you?"

There was a ruthless ruthlessness in his voice, as if there were more than a thousand people in the town in front of him, all of whom were chickens, ducks and livestock ready to be slaughtered at any time.

Dai Daojin turned his head and glanced at him, and said lightly: "No need." ”

Zhulu Mountain frowned vaguely, becoming a big thing is not informal, this person can easily destroy a city, is it possible that he has become a good person today?

As soon as he had an idea, a middle-aged man standing in front of him to the left turned around, looked at him and said, "If all the people in the town are killed, no matter how careful you are, you will leave traces." ”

Another squatting vendor, a woman in her forties, got up and looked at him and said, "If it is known, Xu Xiao's big battle will definitely be even more eye-catching." ”

A young boy eating a sugar gourd in front of the right swallowed the sugar gourd in his mouth, walked up to him, looked up at him and said, "You are in charge of the spy organization under Xu Xiao, why are you so reckless, how did you climb to this position?"

Zhu Lushan stopped, the fat on his face trembled slightly, and the pupils in his eyes shrank into needletips, which was caused by extreme fear, and the chill behind him rushed straight up from the tail bone, only to feel that his hands and feet were cold.

Because...... The voices of these people were exactly the same as those of the black-robed man in front of them.

And...... He discovered something even stranger.

At some point, the town was dead silent, and there was no movement at all, as if it was dead.

He twisted his fat, almost invisible neck, and looked around, only to see that everyone in the street turned their heads to look at him, their eyes calm and blank. Even when he saw on the right-hand side, the shopkeeper in an inn was carrying a teapot in his hand, and he didn't pour tea for the guests, but just turned his head and stared at him.

Zhu Lushan trembled, he didn't count the killing, but at this moment he was terrified to the extreme.

His lips trembled a few times, and he saw the black-robed man who was still walking forward.

Zhu Lushan hurriedly hurried up, following behind the black-robed man, cautious, and did not dare to come out, like a fat quail.

After a while, the two walked out of the town, and as soon as the two left, the people in the town suddenly became lively again, as if nothing had happened just now.

The lively voices behind him came into his ears, but Zhu Lushan didn't dare to look behind him, and he also understood what the black-robed man meant by not needing.