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Upon hearing this, Wen Tiren and Xu Guangqi stopped admonishing, but waited curiously for the emperor's answer. After all, this Ming Dynasty banknote is very different from the previous Ming Dynasty treasure banknote. What is the mystery behind it?

Hu Guang smiled after hearing this, pointed to the banknotes in their hands with his hand and said: "This banknote is designed for daily use by the common people, so it has been considered in terms of size and durability. In addition, the pattern on it is this copper coin and Copper string, I believe I don’t need to explain it. What’s inside the square hole is the number writing method from Dashi. It’s very simple and practical. I’ve decided to promote it in Ming Dynasty in the future!”

When Xu Guangqi heard this, he secretly thought that Your Majesty really knows a lot about Xiyi. Wen Tiren frowned after hearing this, but he did not object and just asked: "Your Majesty, I wonder where this number is convenient?"

When Hu Guang heard this, he picked up a brush and started writing. He quickly asked Fang Zhenghua to pass the written paper to the first assistant, and at the same time said: "It will be very fast to count this kind of numbers, especially when the numbers are very large. That is what I am showing you. A few examples, including addition, subtraction, multiplication and division, will be straightforward and much easier!”

Wen Tiren did not recognize 0 to 9, and what Hu Guang gave was the writing habit of later generations. There were four examples of addition, subtraction, multiplication and division, all of which were numbers above ten thousand, which confused him.

Xu Guangqi, who was standing next to him, stretched out his head to take a look, and he understood a little better. He couldn't help but be a little surprised and said: "Your Majesty, is this result accurate?"

Upon hearing this, Wen Tiren turned the piece of paper to Xu Guangqi with some curiosity. Then he turned to look at the emperor, waiting for an answer.

Bi Ziyan was the Minister of the Ministry of Household Affairs, and it was common for him to deal with numbers, so he was also interested in this, so he stretched his head to look over, but he didn't recognize it like Wen Tiren.

When Hu Guang heard Xu Guangqi's question, he smiled and said, "Xu Qing can do the math. Do you want me to read the numbers to you?"

"I recognize these numbers!" Xu Guangqi replied, and then he immediately lowered his head and started counting, regardless of whether the emperor was polite or not.

The other two people saw Xu Guangqi and looked at Xu Guangqi curiously, staring at his expression, waiting for his conclusion.

After only a moment, Xu Guangqi raised his head with a slight blush and said: "Your Majesty, the results of the first two sets of additions and subtractions are fine if I check them. But the following multiplications and divisions..."

He paused for a moment after saying this, and then stood up and bowed and said: "Your Majesty, please give me your abacus!"

Xu Guangqi is indeed a scholarly person. Even in front of the emperor, in order to get accurate results, he does not care about his face and must get accurate information on the spot.

But his performance surprised the two people next to him. Xu Guangqi had to use an abacus to get the result, but the emperor just brushed it a few times, and the result was already on the paper. If the results are correct, the gap seems to be a bit large.

Hu Guang naturally had no objection to this request, and immediately nodded and ordered Fang Zhenghua to get an abacus.

Xu Guangqi is also very good at arithmetic. He held the abacus in his hand, crackled it, and immediately got the result. After checking it again, he couldn't help but admire: "The result is correct. Wei Chen believes that this method is worth promoting!"

As soon as these words came out, Wen Tiren and Bi Ziyan were surprised. I didn't expect that Dashi's arithmetic was so good. He could calculate the results quickly with just a pen and without an abacus.

At this time, the Ming Dynasty was far less open-minded than the Manchus and Qing Dynasties in later generations. They would accept new things, even barbarian things, as long as they were really good things.

For example, the artillery of the Western Yi and the muskets of the Japanese pirates were better than those of the Ming Dynasty at that time, so the Ming Dynasty did not hesitate to buy them and imitate them.

Hu Guang smiled slightly after hearing this and said: "Promotion is a matter of your etiquette department. Please plan it yourself. I will also compile a copy of this related content for you, including further knowledge on arithmetic such as squares, square roots and so on. What I said before was not something I said casually.”

Both Wen Tiren and Bi Ziyan were a little confused. They couldn't understand it at all, and they didn't know what was going on. But Xu Guangqi remembered what he said on the Deshengmen Archery Tower that day. When he was about to express his position, he heard the emperor ask him again: "Have you ever sorted out the things I asked you to sort out before?"

"I have already sorted it out, but seeing that His Majesty is busy with military affairs these days, I want to revise it again." Xu Guangqi replied with a slightly excited expression. At this time, he already believed that the emperor was really powerful!

Hu Guang nodded after hearing this and said, "Send it over when it's ready. I can take a look at it when I have time."

After finishing speaking, he brought the topic back, glanced at the other two people, and then continued to introduce: "The picture on the back of the banknote, and those words, I made the decision after careful consideration. You can guess, What's this?"

Upon hearing this, Chief Fu Wen Tiren had already considered it before and immediately responded: "Your Majesty, the pattern on the back is the Sanchen pattern. Since ancient times, the Sanchen flag has been the emperor's flag. Printed on this banknote, it should represent the Ming Dynasty. Paper money is the property of the Emperor and no one may destroy it..."

"..." Hu Guang was speechless. Well, it seems that this explanation is not bad.

"It's just...it's just that the star rays seem to be slightly different from the pattern of the Three-Chen Flag, and the color is also different. I am stupid, I don't know what it means?" Wen Tiren was slightly hesitant. In fact, he originally wanted to say, is this star ray Wrong drawing?

After hearing this, Hu Guang immediately shook his head and smiled, and directly solved the mystery and said: "This picture does evolve from the Sanchen Banner, but it has another meaning. For the complete version, you can see the back of more than one tael of silver banknotes."

Seeing that the three ministers were looking through the pages curiously, he continued: "The red sun and yellow moon overlap, which is a bright character, which is the name of our country. The rays of the stars outside are changed to red, which also refers to the rays of the sun. , which coincides with the fact that my Ming Dynasty belongs to the virtue of fire."

After hearing what the emperor said, the three of them saw that it was indeed the case. What a coincidence when they thought that the emperor's flag had something to do with the Ming Dynasty!

"The twelve rays of light refer to the twelve hours in a day and the twelve months in a year. The light is located above the blue sky, which means that the glory of our Ming Dynasty is shining in all directions at all times."

This is a good statement! After hearing this, the three people couldn't help but nod in secret praise.

"The four sharp big horns in the red light point to the four directions of up, down, left, and right, which mean that they are bounded by the sky and the earth, and are not subject to concubines. They can also represent the four dimensions called propriety, justice, integrity, and shame in "Guanzi·Herdsmen."

From far to the ends of the sky and the earth, there is no one who does not submit to me as a concubine. This comes from the stele "The Legend of the Concubine of Heaven", which is also commonly known as the Zheng He stele. Naturally, the three ministers in the imperial study understood this meaning. They said it was a good sign and nodded again.

The high order has increased by 50, which was announced in the group, so one chapter is due.