"Linear algebra?" Zhao Ruizhi frowned. He didn't even have time to get angry. Instead, he was thinking about what kind of magical secret this was. Why have I never heard of it?
Not to mention him, even Mi Li, who had finished reading the Qin Royal Library, was confused. What is linear algebra? Why don’t I know it?
Only Bi Linglong was thoughtful, thinking of the information about Zu An's previous investigation. He seemed to be the arithmetic teacher of Mingyue College? Moreover, he had gone to the National College before, and even those back-mountain teachers who usually had high eyesight were surprised.
I admire his profound knowledge. I think linear algebra should be one of his abilities.
Zu An once again confirmed their inscriptions with Zhao Ruizhi and murmured to himself: "Xuan Yun Dui Tianmen describes the situation when we went to the island before..."
But the latter sentences involved ancient astrology, and Zu An wasn't too clear about it, but fortunately he had a Huo Du Niang by his side.
He hurriedly asked Mi Li, and then he roughly understood the secret in the inscription.
Tianmen belongs to Spica among the twenty-eight constellations, and Tianri naturally refers to the sun. Historically, Jinque generally refers to the palace and garden where heaven and earth live, and in ancient astrology, Ziwei Yuan corresponds to the residence of heaven and earth.
Ancient astrology divided the sky into three groups and twenty-eight constellations. The three groups were three vast star fields in the sky above our heads. Each star field contained many constellations and stars, and they were called Ziwei Yuan, Taiwei Yuan, and Tianshi Yuan.
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Then the stars near the ecliptic were transformed into twenty-eight regions, called the twenty-eight constellations. Each of these twenty-eight constellations is a group of seven, and can be divided into the four elephants of Qinglong, Suzaku, White Tiger, and Xuanwu according to the southeast, northwest, and northwest.
The Southern Star should be the Dipper Star, one of the Seven Constellations in the North; Yuheng should refer to the Yuheng Star of the Big Dipper. According to common astrology, it is difficult for the Southern Star to orbit the Big Dipper. This is why the emperor was so desperate before, but now
This stone slab corresponds to the starry sky. You only need to match the respective symbols. There is no need to actually pull the stars.
Huagai refers to the purple, Huagai refers to the purple-tinted canopy star, and purple refers to the purple-tinted emperor star;
Yayin enters Zheng. Yayin refers to Xia Yin in ancient times, and Xia people are after Xuanyuan, which should refer to Xuanyuan star in the stars; Zheng refers to Zheng star in the sky city wall.
With Mi Li's help, Zu An quickly deciphered the secret in the inscription, and all that was left was to align the corresponding stars.
This kind of moving one pillar will affect several other pillars to rotate together. If you try it out of thin air, it will be easy to crack it by force. But with such a complicated relationship like the inscription, it is obviously useless to try it out of nowhere.
However, although this ancient mechanism is mysterious, it should not be difficult for people with a college education. It is just a linear algebra application problem.
He first arranged the order of each pillar. The first pillar rotated once and recorded the corresponding number of rotations of the other pillars. Assuming that the second pillar did not rotate, it was recorded as 0, the third pillar rotated once and was recorded as 1, and the fourth pillar rotated once.
The second time is recorded as 2, and so on, and finally it can be recorded as d1=[1,0,1,2...]T (Note: T here is a superscript, indicating transposition, and the mathematical symbols cannot be typed by coding software)
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Then suppose that the first pillar is rotated X1 times, then the state of the pillar will become X1*d1;
Then suppose that the second pillar is rotated X2 times, then the state of the pillar will become X2*d2;
By analogy, the final state of the pillar is X1*d1+X2*d2+X3*d3+……=b.
b is a certain constant, because by determining which patterns correspond to each other based on the previous inscription information, we can determine the final state of each pillar and how many times it rotated at the beginning.
This is equivalent to solving a system of non-homogeneous linear equations, which can solve X1, X2,
Zhao Ruizhi watched from the side as Zu An drew some symbols on the ground that he had never seen before. It was like reading a book from heaven.
He couldn't help but secretly glance at the other people, and found that the faces of Bi Linglong, He Li and others all had expressions of mental retardation and confusion. His explosive mentality instantly calmed down a lot.
After a while, He Li couldn't help but glance at him secretly. He found that Zhao Ruizhi was watching Zu An painting those ghostly symbols and nodding slightly. He seemed to be looking at it with great enthusiasm. He couldn't help but admire him. The emperor was indeed worthy of his honor.
He is the emperor, he can even understand this.
After a while, Zu An finally stood up: "Okay!"
Then he came to the stone array, thinking about the answer he had just calculated, and turned the corresponding pillars a few times.
Sure enough, after turning it in this order, all the patterns were aligned!
Immediately afterwards, there was another roaring sound from below, which was obviously the mechanism starting to operate.
The entire stone slab suddenly glowed with light, and then the light rose rapidly, and all the luminous pearls previously placed in the holes lit up.
A beam of light passed between those luminous pearls, and finally hit a certain place on the stone slab. The stone slab was obviously tilted at an angle.
But after a while, nothing happened. Zhao Ruizhi frowned: "What's going on?"
He was not in a hurry to raise an army to investigate, because all the previous signs showed that Zu An's solution was correct. Is there something missing?
He thought for a long time without any clue, so he looked directly at Zu An. As an emperor, of course he didn't have to do everything himself, so he left the troublesome matters to his subordinates.
Zu An was also confused. Everything was obviously going well, so why didn't anything appear?
At this time, Mi Li's voice suddenly sounded: "Do you still remember the last words of the stone tablet we found?"
"The moon enters the center for the noble..." Zu An muttered those words silently, 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.
His heart moved, and he took out the King of Qin's gallbladder mirror that he had found in the treasure house of Liangtian Biyue Jiao. As expected, the shape was just right.
After Zu An obtained this mirror before, he tried various methods to activate it. Unfortunately, it seemed like a dead object from beginning to end, without any movement at all.
But at this moment, that beam of light shines on the mirror, and it suddenly shines brightly, which has been silent before, like a small sun, making it impossible to look directly at it.
I saw a bright light emitting from the mirror, shooting straight into the sky and reaching the third fairy island somewhere.
Then something shocking happened. A bright yellow light more than one foot wide slowly spread down from the third fairy island.
Yes, it was laid out like a carpet, and it didn't take long for the light to reach the second fairy island.
Immediately after the second fairy island was facing their direction, there was also a bright yellow light spreading over, and it was quickly embedded near the array of stone slabs, forming a transparent light bridge between the two islands.
After the light bridge was formed, the previously bright luminous pearl light on the stone slowly disappeared, and the King of Qin's bone mirror returned to normal.
Zu An hurriedly took it back. It was obviously a treasure and he couldn't bear to leave it here.
Zhao Ruizhi glanced at him and obviously realized that his mirror was extraordinary. He was about to grab it and get rid of Zu An, but he immediately thought of what the other party had just said and saw his ability to draw ghost charms. He thought to himself:
This guy is really good at solving these traps, so let's wait for now. If we don't keep it together later, there will be some use for him.
He suppressed the murderous intention in his heart and walked to the light bridge alone.
I was a little cautious at first, but I soon discovered that although the light bridge looked transparent and scary, it felt like solid ground when I stepped on it, and there was no risk of falling.
"Is this the method of the Immortal Family?" Zhao Ruizhi looked at the palace in the distance with more and more eager eyes, and his figure turned into an afterimage, and soon he reached the second island.
Seeing this, He Li and others hurriedly followed. After all, there might be a fairy fate ahead, and no one wanted to get a share of the pie.
Zu An secretly cried out that it was a pity. He had just tried to close the light bridge and use the opportunity to throw the emperor to death. Unfortunately, whether it was beads or pillars, they seemed to be welded to death and could no longer be moved.
"Forget it, let's find other opportunities later." Zu An also took Bi Linglong up to the Light Bridge.
Bi Linglong was extremely shocked all the way and looked around the light bridge with excitement.
Zu An had seen many such scenes in various Xianxia movies, TV series and various games in his previous life, so naturally there was nothing new.
He silently took out the King Qin bone mirror. It seemed to have been activated just now. I wonder what its function is?
Unfortunately, after holding it in my hand and studying it for a long time, it still looks ordinary and there is no difference at all.
"Is it just my misunderstanding?" Zu An frowned,
Just as he was about to take the mirror back, Bi Linglong suddenly came to him: "What are you looking at?"
At this time, Zu An was holding a mirror, and Bi Linglong was standing behind the mirror, looking at him doubtfully.
Zu An lowered his head and looked in the mirror, and two nosebleeds came out instantly.