It turns out that this secret book, to be precise, is not a secret book of exercises, at least in Xu Yi's view, this should not be attributed to a secret book of exercises, but a notebook, a proof, a martial artist with advanced arithmetic knowledge, a certain idea put forward by another wise man, made a reversal and proof, and recorded an essay.

The whole essay revolves around polygons and circles.

When he opened this secret book, at first, he couldn't believe his eyes, and almost thought that he had worn back to the earth, otherwise he would not see anyone talking about geometry in this world.

However, after a slight turn of thought, he came to his senses. Circles, geometry, not much advanced knowledge, another time and space, thousands of years ago the ancients were also studied.

If it was just about geometry, of course Xu Yi was not interested, although he had received so-called higher education in another time and space, he had long been interested in the knowledge in books.

The reason why this book made Xu Yi deeply interested was that it was at the end that the wise man proposed the possibility of learning from martial arts.

It is mentioned in the book that a great arithmetic surnamed Sui came up with an interesting theory.

Regular trilaterals, regular quadrilaterals, regular pentagons, regular fifteen-sided polygons, and polygons with twice the number of sides mentioned above can be made directly with rulers and gauges.

The implication is that regular polygons other than these cannot be made with rulers and rules.

The wise man responded to this conjecture by proposing a regular seventeen-sided ruler diagram conjecture, and used more than ten pages of content to confirm this conjecture.

With such a profound arithmetic knowledge, which martial artist would study it?

Entering martial arts with arithmetic, Xu Yi has practiced martial arts for more than two years, and has never heard of it.

It was he who listened to Master Zhou talk about martial arts in the world, and he never heard Master Zhou say that there was a line of arithmetic.

Such a secret book, appearing in the world, naturally those who can't understand it, and there are few people who know the goods, that is, if Xu Yi didn't have the insight of his previous life, he would definitely make this secret book a ghost drawing.

Even with the arithmetic knowledge of his previous life, it would take a great deal of effort for Xu Yi to fully comprehend this exposition.

Thanks to the increased strength of his soul, his intelligence is far higher than in his previous life.

Otherwise, it is the wise man who gives detailed proof, and he will not understand.

In this long time, in addition to understanding the exposition in the book, Xu Yi is following the explanation in the book, and really using rules and regulations to draw the tiger according to the cat and forge this regular seventeen-sided shape.

This painting is dozens of pieces of paper, and Rao is now that he has cultivated deeply, and his eyes are red.

Time passed little by little, Xu Yi was still sitting at the desk and drawing, and the faint halo shot by the pearl in the corner stretched his figure extremely long.

After the last piece of paper was finished, he squatted on the ground again to draw, and half of the room was filled with ink lines, and with a click, the ink pen was slammed into the ground by him, breaking in two.

Xu Yi jumped up, his head hit the top of the wall, he didn't feel any pain, he craned his neck and laughed hard, shaking the water in the furnace to ripple round and round.

He drew it!

A standard regular heptagon!

Just use a ruler!

At this moment, the empty mountains are empty, and the water is blooming.

This moment, to him, is like eternity!

After smiling for a long time, Xu Yi's figure flickered, standing in the center of the room, his body unfolded, and he saw light and shadow, wandering indoors, full of wind.

At this moment, he was in the corner of the west wall, and in the next moment, the figure appeared to the south.

If it is said that Xu Yi's body style was light and swift in the past, then Xu Yi is now a sweep.

I don't know where to start, I don't know where to end.

The moment the figure settled, the floor of the room had been filled with dense circles one after another, large or small.

This secret book is practiced!

It is said to be fast, but in fact it is extremely difficult, this exercise is extraordinary, and the exercises next to it either pay attention to the urging of drugs, or pay attention to the change of moves, and the transformation of complexity and simplicity.

Therefore, to practice, it is necessary to grind the water and rely on time to polish it.

And this set of body methods, strictly speaking, is a derivation of arithmetic, just like one plus one to get two, you understand the truth, and 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 ruler and the form, and it is not until the end of the fifteen pages that the wise man expounds the idea of using the circle to enter the martial arts.

Xu Yi understood the first fourteen pages, and the fifteenth page was incomprehensible.

Perhaps the attention of the wise man was no longer above martial arts, so that in the end, even the name of this set of body methods was not recorded.

This is also the biggest reason why countless buyers did not regard this book as a secret book of exercises at all.

Xu Yi slowly walked around the room, thinking in his heart, "The gist of this body method is to seek the wonder of the circle, within a circle, the flash of thought, the place of a circle, for the square inch, the wonder of returning to the yuan, it is better to call it the return to the yuan step." ”

After setting the name, Xu Yi no longer had the reason to stay here for a long time, carefully checked the waist bag, everything was not defective, and then wrapped the waist bag around the body, brought the hat, climbed the stairs, and after a while, he went out of the practice room.

The moment I opened the door, the breeze was blowing, and I was caught in the fragrance of flowers, and I saw the sky, the sun was setting, and the tired birds were returning, and it was another evening.

Xu Yi was inexplicably frightened, and hurriedly took out the jade crystal number plate and printed it on the black disc in the center of the gate, the light flashed, and a six-character appeared on it.

Xu Yi was taken aback, he couldn't have imagined that just drawing a circle would take him two days and two nights.

What is even more frightening is that if you count the day when you are sick at home, tomorrow will be the time to make an appointment, and if you delay it for another day, you will miss the decisive battle.

Xu Yi didn't dare to delay, just pull his legs, how do you know that before he took two steps, the gong sounded, and he heard a wild shout, "The hat man is out!"

Suddenly, in all directions, hundreds of people rushed over from nowhere like groundhogs, and quickly surrounded Xu Yi.

The leader was Lei Ye, a man in Tsing Yi, who was thrown away by Xu Yi in the canteen that day and smashed to the ground.

It turned out that Lei Ye led a group of people from the Heroes Association to show off their power in the cafeteria that day, but he kicked Xu Yi on the iron plate, and he simply broke his toe.

In front of everyone's eyes, how can the self-proclaimed hero suffer such a big loss and plant such a big face.

So, after the Heroes Association waited for the discussion, they decided to find the field.

Who knows, Xu Yi turned around and went into the practice room and retreated, and this retreat was a full two days and two nights.

Helplessly, the hero club had to use stupid methods, but fortunately, after detecting Xu Yi's practice room number, he sent someone to wait for the rabbit here.

That's where the scene comes in.

Seeing that he was surrounded by everyone, Xu Yi's eyelids didn't jump, and strode away.

With this move, the encirclement was suddenly loosened, and the impression he left that day was too strong.

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