It turns out that this secret book, to be precise, is not a skill secret book. At least in Xu Yi's view, it should not be attributed to a skill secret book, but a notebook, a proof, a warrior with profound knowledge of arithmetic, an essay that overturned and proved a certain idea put forward by another wise man, and recorded it.
The entire essay's discussion actually revolves around polygons and circles.
When he opened this secret book, he couldn't believe his eyes at first. He almost thought he had traveled back to the earth, otherwise he would never see someone discussing geometry in this world.
However, as soon as his thoughts changed, he came to his senses. Circles and geometry were not profound knowledge. In another time and space, the ancients thousands of years ago were also studying them.
If it were just about discussing geometry, Xu Yi would certainly not be interested. Although he had received so-called higher education in another time and space, he had long since lost interest in book knowledge.
The reason why this book aroused Xu Yi's strong interest is that at the end, the wise man proposed the possibility of incorporating knowledge into martial arts.
The book mentions that a great mathematician named Sui put forward an interesting theory.
Regular triangles, regular quadrilaterals, regular pentagons, regular pentagons, and polygons with twice the number of sides mentioned above can be made directly with rulers and compasses.
The implication is that other regular polygons cannot be made with rulers and compasses.
In response to this conjecture, the wise man came up with the conjecture of a regular heptadagon ruler and compass, and used more than ten pages to confirm this conjecture.
Which warrior would study such profound arithmetic knowledge?
Entering martial arts from arithmetic, Xu Yi has been practicing martial arts for more than two years and has never heard of it.
Even though he listened to Master Zhou talk about martial arts in the world, he never heard Master Zhou talk about arithmetic.
When such a secret book appears in the world, people who don't understand it naturally talk about it, and there are only a few people who understand it. Even Xu Yi, if he had not had the knowledge in his previous life, would definitely turn this secret book into a ghost painting.
Even if he has knowledge of arithmetic in his previous life, Xu Yi will still need to expend a lot of effort to fully understand this discussion.
Thanks to the enhanced strength of his soul, his intelligence is far higher than in his previous life.
Otherwise, even if a wise man gives a detailed proof, he will not be able to understand it.
During this long period of time, Xu Yi not only understood the discussion in the book, but also followed the explanations in the book and used rules and regulations to forge this regular heptagon.
After this drawing, there were dozens of pieces of paper. Even though he had advanced in cultivation now, his eyes were red.
Time passed bit by bit, and Xu Yi was still hunched over his desk drawing. The faint halo of light emitted by the pearl in the corner stretched his figure extremely long.
After finishing the last piece of paper, he squatted on the ground again and drew until half of the room was filled with ink lines. With a click, he stabbed the ink pen hard on the ground and broke into two parts.
Xu Yi jumped up and hit his head hard on the top of the wall. He didn't feel any pain at all, he raised his neck and laughed desperately, causing the water in the cauldron to ripple in circles.
He drew it!
A most standard regular heptagon!
Just use a ruler!
At this moment, there is no one on the empty mountain, and the water is flowing and the flowers are blooming.
For him, this moment felt like eternity!
After laughing for a long time, Xu Yi swayed and stood in the center of the room. He spread out his body and saw streaks of light and shadow wandering around the room, filling the room with wind.
At this moment, he was in the west corner, and the next moment, his figure appeared in the south.
If Xu Yi's movement was nimble in the past, then Xu Yi's current movement is fleeting.
I don't know where it starts, and I don't know where it ends.
The moment he settled down, the floor of the room was already filled with densely packed circles one after another, large or small.
This secret book is here to be practiced!
It sounds fast, but in fact it is extremely difficult. This technique is extraordinary. Other techniques either focus on the support of drugs or the changes in moves and the transformation of traditional and simplified techniques.
Therefore, when practicing, it is mostly necessary to use the water grinding technique and polish it over time.
Strictly speaking, this body technique is a derivative of arithmetic, just like one plus one gets two. Once you understand the principle, you will be able to do it.
Just like this secret book, there are a total of fifteen pages, and the first fourteen pages are all about the shape of rulers and compasses. It is not until the end of the fifteenth page that the wise man elaborates on the idea of using the circle as a weapon.
Xu Yi understood the first fourteen pages, but the fifteenth page became incomprehensible.
Perhaps the wise man's attention was never on martial arts, so in the end, he didn't even record the name of this set of movements.
This is also the biggest reason why countless buyers at Casual Market did not regard this book as a secret book of exercises.
Xu Yi walked slowly around the room, thinking in his mind, "The essence of this movement technique is to seek the beauty of the circle. Within a circle, a flash of thought can arrive, and the land of a circle can be transformed into a square inch. It is really the beauty of returning to the original. Why not call it Return to Origin Steps."
After deciding on the name, Xu Yi had no reason to stay here for a long time. He checked his waist bag carefully and found that everything was in good condition.
The moment I opened the door, I felt a cool breeze blowing in my face, mixed with the fragrant fragrance of flowers, and I could see the sky. The sun was setting in the west, and the tired birds were returning. It was evening again.
Xu Yi was inexplicably horrified, so he quickly took out the jade crystal number plate and printed it on the black disc in the center of the door. The light flashed and a six-letter word appeared on it.
Xu Yi was shocked. He never imagined that it would take two days and two nights just to draw circles.
What's even more scary is that, including the day of pretending to be sick at home, tomorrow is the day of the battle. If we delay for another day, we will miss the decisive battle.
Xu Yi didn't dare to delay, so he just walked out. Unexpectedly, before he took two steps, there was a clang of a gong, and a loud shout was heard, "Hat Man is coming out!"
Suddenly, hundreds of people came from all directions like groundhogs, jumping over from nowhere and quickly surrounding Xu Yi.
The leader was none other than Master Lei, the man in Tsing Yi who was thrown away by Xu Yi in the cafeteria that day and hit the ground hard.
It turned out that that day, Master Lei led a group of Hero Society to show off their power in the cafeteria, but kicked Xu Yi on the iron plate and almost broke his toes.
In full public view, the self-proclaimed Hero Society suffered such a big loss and suffered such a big loss, how could he give up?
So, Hero Society and others decided to find their place again after discussing it.
Who knew that Xu Yi turned around and went into the practice room and went into seclusion. This retreat lasted for two days and two nights.
Hero Society had no choice but to use stupid methods. Fortunately, he found out the number of Xu Yi's practice room and sent someone to wait here.
Only then did the current scene happen.
Seeing being surrounded by people, Xu Yi walked forward without twitching his eyelids.
With his move, the encirclement immediately loosened. The impression he left that day was too strong.