Li Yuan's series of rhetorical questions made Li Shimin deafening when he heard it, as if he was drinking on the head. Li Shimin really didn't think about such a deep level at that time.

I just took it for granted that Du Chengfeng would enter the country to be gilded, and then arrange him to teach the prince by the prince's side, so as to provide him with the best career path.

But as his father said, he didn't think about how Du Chengfeng felt at that time.

Du Chengfeng is against exclusive respect for Confucianism and Taoism, and there are a bunch of old stubborn Confucianists and Taoists in the Guozijian, and a bunch of old guys who sit in the well and watch the sky.

Fortunately, Du Chengfeng is not here at the moment, otherwise Du Chengfeng must have a contempt in his heart: You only understand now.

Let my brother go to Guozijian to study, are you old and confused? is also a prince in the middle of the house, as if Du Chengfeng is rare.

"Do you know what you did wrong now?" Li Shimin was still regretting, and Li Yuan's earnest words rang out again.

Li Shimin nodded in response: "Father Qibing, I really know what is wrong. ”

Li Shimin breathed a sigh of relief, and then said: "Father, Du Chengfeng is a real talent who cares about the world and the people and has grand ambitions, and I will definitely attach importance to it." ”

"It's just that he has refused to enter the court twice as an official, and he is arrogant, so I haven't thought about how to reward him for a while. Why don't you see the emperor, how about giving him a county first? Wait for the rice to be harvested, and then chase the line? ”

After Li Shimin finished speaking, he looked at Li Yuan with flattery, bent down slightly, and waited for Li Yuan's reply with expectant eyes.

Looking at Li Shimin, who really knew his mistakes, Li Yuan couldn't bear to scold too much after all, after all, he was the emperor today, and he couldn't lose his face too much.

"That's the only way to do it first, but you have to remember to be sincere." Li Yuan admonished.

"Yes, Father." Li Shimin happily responded.

"By the way, I heard that you robbed Du Chengfeng of a pair of words written to Chu Suiliang, and the manuscripts of the poems written by Du Chengfeng at the Chang'an Poetry Conference were also collected by you. You will send it to me when you go back, I want to see for myself this Du Chengfeng's talent. ”

Li Shimin was happy that today's matter was finally over, when Li Yuan suddenly said again.

"Ahh What is the situation of the father, Li Shimin is like a deflated ball, and he has become listless again.

Du Chengfeng's manuscripts and inscriptions were asked to go by his father, and with his father's temperament and affection, most of them will definitely not come back.

It is never an exaggeration to say that Du Chengfeng's calligraphy is the first in the world, do you want to put down your own face and identity and go to Du Chengfeng again to ask for a copy?

Alas! It's just that since his father has spoken, Li Shimin naturally can't refuse. I could only respond with a sad face: "Okay father, I'll send it over in person." ”

Li Xiaogong on the side watched the Emperor Taishang reprimand the emperor throughout the whole process, and he was already embarrassed to death.

Fortunately, he is not an outsider, he is also a royal person, otherwise if outsiders see the emperor's ugly appearance today, then the royal face will not know where to put it.

Seeing that the matter had finally come to an end, and Emperor Taishang's face slowly returned to normal, Li Xiaogong dared to speak: "Emperor Qibing, Emperor, Weichen There is another matter here about Du Chengfeng, and it is a big deal. ”

Hearing Li Xiaogong's report, Li Shimin's face just changed, and he was not too surprised. After all, he was used to nature.

However, Li Yuan was full of interest when he heard this, and stared at Li Xiaogong in a daze: "Aiqing say it quickly." ”

Li Xiaogong took out the Arabic numerals and calculation methods and bookkeeping methods written by Du Chengfeng from his arms, bowed down and handed them to Li Yuan, and said with a little excitement: "The Emperor, the Emperor, this is a number and calculation method that Du Chengfeng taught Weichen yesterday, and there are several bookkeeping methods. "Sands Chinese

"Wechen has personally verified that using this kind of numbers and calculation methods to replace the original numbers and methods is at least ten times more efficient, and it is simple and easy to understand."

"According to Du Chengfeng, as long as you memorize the ninety-nine multiplication formula he invented, even if you are a child, the level of arithmetic in learning this method is several times more powerful than that of the arithmetic master of Guozijian."

Hiss! Although Li Shimin was accustomed to Du Chengfeng's shocking vulgarity and pretending to be plain on the surface, after listening to Li Xiaogong's simple introduction, there were still huge waves in his heart.

Xindao: If it is really as Li Xiaogong said, this kid can be compared to the world's great masters with just his invention.

Li Yuan quickly took the rice paper presented by Li Xiaogong and said excitedly: "Xiaogong, come and explain to me how these numbers are calculated." ”

"Yes, the Emperor." Li Xiaogong replied respectfully. Pointing to the numbers on the paper, he explained: "Emperor Taishang, you see, the numbers 0-10 on this paper correspond to the numbers of our Datang Dynasty from zero to ten, but it is more intuitive and simple, and there is also a point Du Chengfeng called the decimal point, which is used to represent the decimal place after the single digit." ”

"On the other piece of paper are the formulas and the four methods of addition, subtraction, multiplication and division, which are used to calculate very easily and quickly."

After explaining the Arabic numerals and calculus methods, Li Xiaogong then carefully explained the bookkeeping methods and report styles he learned from Du Chengfeng to the Emperor Taishang.

Li Shimin and Li Yuan are both shrewd people, and after Li Xiaogong's explanation, both of them were shocked.

Although Datang does not attach much importance to arithmetic, arithmetic is one of the essential disciplines after all.

Therefore, the two naturally understood that the numbers and formulas invented by Du Chengfeng, coupled with such a unique bookkeeping method, were definitely epoch-making academic inventions.

In the face of this form of numbers and relative calculation methods, any arithmetic master in Datang is like a child.

Li Yuan's breathing accelerated, and his eyes were shining.

Even if he had not fully comprehended these academic inventions, he knew that this kind of numerical expression and the ninety-nine mantra must be popularized by Guozijian as soon as possible.

Thinking of this, Li Yuan looked at Li Shimin's gaze and was a little blamed.

"Shimin, look at it, look at it, this is the genius you have repeatedly ignored and not valued. People always want to selflessly contribute their knowledge and ability to Datang, if you look at you again, there is nothing to say, I feel worthless for that kid. ”

Li Yuan scolded mercilessly.

Li Shimin was counted down by his father, and suddenly he was in a cold sweat.

He felt that he had not been blamed and reprimanded by his father as many times in his life as he was today, but he couldn't refute it yet. Even the eldest grandson, who had always supported her, didn't dare to say good things for herself at this moment, so she could only stand on the side of the emperor and be silent.

At this moment, the spring color outside the Taiji Hall is excellent, and the birds are singing and the flowers are fragrant, but Li Yuan no longer has the heart to appreciate it.

He was worried that if the royal family continued to ignore Du Chengfeng's existence, then Datang would definitely lose a prodigy.

It was precisely because of Du Chengfeng's excellent ability in all aspects that Li Yuan was so disappointed with Li Shimin at the beginning.

"Okay, I'm tired today, so let's all go back, I want to be alone. Shimin, you give me a good time to go back and reflect on it. Li Yuan shook his shoulders angrily and said helplessly.

"Knowing my father, my son retired." Li Shimin responded cautiously.

"Emperor Taishang, that Weichen has also retired." Li Xiaogong also bent down and said.