Aira saw a castle near the village of Brizania from a distance. It was not big, but it looked quite solid, and it seemed out of place with a small village like Brizania. But apart from that, Brizania was a very small village. Whenever I asked someone, Ella found out where the person she was looking for.

Although the villagers did not know what the Pythagoras school was, when they heard about mathematics, they pointed their hands at the northwest corner of the village without exception and said, "It's the house with a large courtyard. Be careful, the owner there is a lunatic."

The place the villagers refer to is a pitch-black wooden house, smaller than most villagers' houses. But the yard in front of the house is extremely huge. Putting the two together, it looks extremely disharmonious, like a child wearing adult clothes.

As soon as he walked into the yard, Ella was shocked - there was a huge circle on the ground of the yard, surrounded by countless lines on the inside and outside, and the surroundings were densely filled with symbols, like a magic circle.

But the figure attracted Ella. She put the can of honey and fur aside, squatted on the ground and observed it carefully.

When you look roughly, there are thousands of lines, which are messy. After a closer look, these lines form two polygons, which squeeze the circle from the inside and outside.

She touched the lines one by one with her hands, as if she could hear them impatiently saying something, but she couldn't hear it.

Ella turned her attention to those symbols. Those symbols are composed of numbers and operator symbols, and there is no doubt that someone is performing some extremely complex operation.

She looked at it one by one and found that the calculation process was not complete. The person who wrote the symbols seemed to be extremely good at mental arithmetic, omitting most steps, leaving only a few of the most complicated processes on the ground.

Ella tried to complete these omitted steps in her mind and understood what kind of work the master was doing. In this way, the huge and empty space spread out in her mind again.

Those numbers are first transformed into entities, and then given life, arranged and combined in the void space. They are born, merged in addition and multiplication, and then die and separate in subtraction and division.

Ella was so focused on these symbols that she completely forgot that she was here to find someone. Time passed by minute by minute, and Ella's body was covered with red glow.

When the sky began to turn dark, she finally restored the whole process and reported the results calculated by the owner:

"Between 3.1415926535 and 3.141415926536?"

“It’s really admirable.”

A voice suddenly rang in Ella's ear, which scared Ella. She had been focusing on the calculations and did not pay any attention to when someone stood beside her.

“Gregory.”

Without waiting for Ella to ask questions, the man claimed his family name to Ella.

Gregory once sent an envoy to the Seven Hills Empire for Ella, and Ella also talked to Antilia and Gregory. However, neither of them had seen each other.

Ella saw that Gregory's clothes were a little torn, and she seemed to be very interested in her, staring at her. After thinking for a while, she took out a few copper coins from her pocket and handed them to Gregory with a "no" sound.

This is to treat Gregory as a beggar. However, Gregory was neither angry nor embarrassed, but took the money from Ella openly and bowed to Ella.

"Miss, thank you for your kindness. I will use these copper coins on those in need."

As soon as he said this, Ella knew that she had just misunderstood. She scratched her face a little embarrassedly, and then suddenly remembered the purpose of her trip, and asked hurriedly: "Are you the master here?"

"Master?...No, I thought you were the master here. After all, you have such attainments in mathematics."

Ella suddenly felt energetic and asked, "Can you understand these graphics too?"

"certainly."

Gregory bent down, pointed to the polygon of the circle with his fingers, and pointed to the polygon of the inner and inner, and said, "The owner here wants to calculate the circumference of the circle in the middle by clamping inside and outside, and use it to obtain a pi value with a general meaning. The Egyptians believe that this value is 16/9 squared, about 3.16, and Babylon believes that this value is 25/8, 3.125. Indians recently believe that this value is 339/108, that is, 3.139. However, these values ​​are very disappointing."

"Do you even know India?" Aira's eyes shot out the light of desire for knowledge. "Since the establishment of the Tianfang Empire, the trade route from India has been blocked. I have only seen records of India in the relevant documents of Alexander the Great!"

"I have been to India, but there is nothing to mention. This pi, the Indians' 3.139 is a result that has been calculated recently, but more than a thousand years ago, Archimedes of the Seven Hills Empire had calculated the last six decimal places and obtained the number 3.141851. In terms of practical application results, this is much more accurate than India."

"Yes! 3.141581! Six decimal places after the decimal point! This is the most accurate number I know about pi! No one has surpassed Archimedes in this thousand years! But, look at this..." Ella pointed to the circle in front of her, and became a little confused because of her excitement. "3.1415926535! It is ten decimal places after the decimal point! There is no doubt that the owner here is a master of mathematics!"

"If it is in terms of human ability, he is indeed a master." Gregory nodded, but then shook his head again and said, "It's a pity that pi is an infinite value, and human ability cannot fully grasp it. What if there are many digits calculated? Looking at the end point that has not become closer, it just makes people feel more insignificant and incompetent."

A curse suddenly came from the room: "Since I feel small, get out of here! And the woman over there, take your dirty feet away! A little further away from my circle!"

Following the scolding, a dirty middle-aged man ran out. His hair was like a ball of black cotton, his face like a piece of charcoal that had just been pulled out of the fire, and his clothes were stains on the east and the west, which seemed to have not been cleaned for a long time.

Ella had never seen such a dirty person before, and she frowned and took a step back. Gregoris looked completely unconscious, took a step forward, bowed, and said, "Is it Master Gottfried? I am Gregoris, who came to study specifically."

"What to learn? Is it a little bit small? I have nothing to teach you!"
Chapter completed!