Chapter 863

"Linear algebra?" Zhao Ruizhi frowned. He didn't have time to get angry. Instead, he wondered what secret collection of divine skill this is. Why haven't I heard of it?

Don't say it's him. Even Mi Li, who finished reading the qinwangshi library, is confused. Why don't I know what linear algebra is?

Only when Bi Ling long thinks about it, does he think he used to investigate his intelligence? Moreover, after a trip to the national college, even those Houshan teachers who usually look higher than the top admire his profound knowledge. I think this linear algebra should also be one of his abilities.

Zu'an confirmed their inscription to Zhao Ruizhi again and muttered to himself: "Xuanyun told Tianmen to describe our previous landing on the island..."

But the latter sentences related to Ancient Astrology. Zu'an was not very clear, but fortunately there was a living mother around him.

He hurriedly asked Mi Li, and then he knew the secret in the inscription.

Tianmen belongs to the horn of the twenty-eight stars. The sky and sun behind it naturally refers to the sun. In history, Jinque generally refers to the palace where heaven and earth live, while ziweiyuan in ancient stars corresponds to the residence of heaven and earth.

In Ancient Astrology, the sky was divided into three walls and twenty-eight stars. The three walls are three vast star regions in the sky above the head. Each star region contains many constellations and stars, which are called ziweiyuan, taiweiyuan and tianshiyuan.

Then, the stars near the ecliptic are transformed into 28 regions, which are called twenty-eight constellations. Every seven of these constellations are a group. They can also be divided into four basaltic elephants: green dragon, rosefinch, white tiger according to the southeast and northwest.

The Southern Star should be the guide dipper, the dipper in the northern seven; Yuheng should refer to the Yuheng star of the Big Dipper. It is difficult to realize the South Star circling the Big Dipper according to the common sense. This is why the emperor was so desperate before. However, now this slate corresponds to the starry sky. You can only correspond to their respective signs, without really pulling the stars.

Huagai is purple. Huagai refers to Huagai star of ziweiyuan, and purple refers to ziweidi star;

Ya Yin entered Zheng. Ya Yin in ancient times refers to Xia Yin, while Xia people are Xuanyuan, which should refer to Xuanyuan star in the stars; Zheng refers to Zheng Xing in the city wall.

With Mi Li's help, zu'an quickly cracked the secret in the inscription, and the rest was to align the corresponding stars.

This kind of moving a column will affect several other columns to rotate together. It is easy to crack it violently if it is simple, but it is obviously useless to try casually for such a complex relationship as the inscription.

However, although this ancient mechanism is mysterious, it should not be difficult for college educated people. It is completely an application problem of linear algebra.

He first arranges the order of each column. The first column rotates and records the corresponding times of other turns. Assuming that the second column is not converted to 0, the third column is converted once to 1, and the fourth column is converted twice to 2, and so on, it can be finally recorded as D1 = [1, 0, 1, 2...] t (Note: here t is a superscript, indicating transposition, and the mathematical symbols of the codeword software cannot be printed).

Then turn the first column X1 times, and the state of the column will become X1 * D1;

Then turn the second column x2 times, and the column state will become x2 * D2;

By analogy, the state of the last column is X1 * D1 + x2 * D2 + X3 * D3 +... = B.

B is a constant determined, because the last state of each column can be determined several times compared with the beginning by determining which patterns correspond from the previous inscription information.

In this way, it is equivalent to solving a system of non-homogeneous linear equations. X1, X2, X3... Can be solved, which corresponds to the rotation of the corresponding column several times, and the state described in the inscription can be achieved.

Zhao Ruizhi watched zu'an draw some symbols on the ground that he had never seen before, just like reading the book of heaven.

He couldn't help glancing at the others secretly. He found that no matter Bi Linglong or he Li, their faces were full of confused expressions of mental retardation, and his burst state of mind was much calmer.

After a while, he Li couldn't help looking at him secretly. He found that Zhao Ruizhi was watching zu'an draw those ghost symbols and kept nodding slightly. He seemed to be looking hard. He couldn't help admiring him. The emperor really deserves to be the emperor. He could understand even this.

After a while, zu'an finally stood up and said, "OK!"

Then he came to the stone slab array, thought about the answer just calculated, and turned the corresponding columns several times.

Sure enough, after turning in his order, all the patterns are aligned!

Then there was a roar from below. It was obvious that the mechanism began to operate.

The whole slate suddenly flashed a light, and then the light rose rapidly, and all the night pearls that had been put in those pits lit up.

A beam of light came and went among the night pearls, and finally hit a certain place on the stone slab, which was obviously inclined at an angle.

But after a while, nothing happened. Zhao Ruizhi frowned: "what's going on?"

He was not in a hurry to ask questions, because previous signs showed that zu'an's solution was correct. Is there anything missing?

After thinking for a long time without a clue, he looked directly at zu'an. As an emperor, of course, he didn't have to do everything himself. He left the headache to his hand.

Zuan is also confused. Obviously, everything is going well. Why didn't anything appear?

At this time, Mi Li's voice suddenly sounded: "do you remember the last sentence of the stone tablet we found?"

"The moon enters the center for noble people..." zu'an silently recited that sentence and noticed that the stone slab illuminated by the beam of light had a slightly sunken groove, and the shape of the groove seemed to be like a mirror.

With a movement in his heart, he took out the mirror of King Qin's gall that he had found in the treasure house of Liangtian biyuejiao. Sure enough, it was in the right shape.

After getting the mirror, zu'an spent various ways to activate it. Unfortunately, it seemed like a dead object from beginning to end, and there was no movement at all.

But at this moment, the beam of light shines on the mirror. It has been silent before. It is full of time, like a small sun, which makes people unable to look directly at it.

I saw a bright light from the mirror, straight into the sky, and I didn't know where the third Fairy Island was.

Then something shocking happened. I saw a bright yellow light more than ten feet wide slowly spread down from the third Fairy Island.

Yes, it was paved like a carpet. Before long, the light reached the second Fairy Island.

Then the second Fairy Island was facing their direction, and a bright yellow light spread over it, and soon embedded near the slate array, forming a transparent light bridge between the two islands.

When the light bridge was formed, the light of the bright night pearl on the stone slab slowly disappeared, and the king of Qin's bone mirror also returned to normal.

Zu'an quickly took it back. It was obviously a treasure. He couldn't bear to leave it here.

Zhao Ruizhi glanced at him and obviously realized that his mirror was extraordinary. He was trying to grab it and remove zu'an. However, he immediately thought of what the other party had just said and saw his ability of ghost symbols. He thought that this guy was really good at understanding these mechanisms. He'd better wait first. There's still room for him if he can't keep it together.

After pressing the kill in his heart, he went to the light bridge alone.

At first, I was a little cautious, but I soon found that although the light bridge looked transparent and frightening, it was like stepping on the ground. There was no fear that it would fall.

"Is this the immortal family's means?" Zhao Ruizhi's eyes became more and more eager when he looked at the palace in the distance. His body turned into a residual shadow and soon went to the second island.

He Li and others hurried to follow up. After all, there may be a fairy fate ahead. Who doesn't want a share.

Zu'an screamed. Unfortunately, he just tried to close the light bridge and took the opportunity to kill the emperor. Unfortunately, whether the beads or the columns were welded to death, they couldn't move any more.

"Forget it. Look for other opportunities later." Zuan also took Bi Linglong to the light bridge.

Bi Linglong was shocked all the way and looked around at the light bridge with excitement.

Zuan has seen many such scenes in various Xianxia film and television dramas and various games in his previous life. Naturally, there is nothing new.

He silently took out the bone mirror of the king of Qin. It just seemed to have been activated. I don't know what function it has?

Unfortunately, after half a day's study in his hand, he still looks ordinary and doesn't see any difference at all.

"Is it just my illusion?" Zuan frowned,

Just about to take the mirror back, suddenly Bi Linglong came to him: "what are you looking at?"

At this time, zu'an was holding a mirror. Bi Linglong was standing on the back of the mirror and looked at him suspiciously.

Zuan looked down at the mirror, and two nosebleeds came out in an instant.

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