Li Zhi, don't be a coward

Chapter 100 Bring it to you
Less than half a year after coming to Datang, Li Qinzai didn't want to set up a persona like a "smart man". It was too tiring and too pretentious.

In his previous life, he only scored more than 400 points in the college entrance examination. He, an expert, only got a second grade. During college, he was late, cut classes and fell in love. After four years of campus life, he was familiar with the karaoke bars, bars and restaurants outside the school. On the contrary, it was the school library. What it looks like, but he has no idea.

Failing a subject at the end of the semester is commonplace, so that Li Qinzai has to cry and repent in front of the subject teacher every semester, in exchange for the teacher's soft heart for a while, and let the tiger go back to the mountain, and continue his decadent university life in the next semester.

If Li Zhi knew about this expert's behavior in his previous life, he might shout "Sword and Ax Hand" on the spot, and hack this swindling expert to death.

It has not been a short time since he came to Datang, and Li Qinzai knew for a long time that the ancients actually did a lot of research on mathematics, such as "Nine Chapters of Suanjing", "Sea Island Suanjing", "Zhoubi Suanjing", etc., which are about the same as those of later generations. math textbook.

The well-known pi, when the aboriginal hozens in Europe and America were still picking wild fruits in the mountains and sleeping in caves, the ancient Chinese ancestors had already calculated the seven digits of pi after the decimal point.

The achievements are not unreasonable, and the research on mathematics is also very in-depth.It's a pity that the imperial court didn't pay much attention to the subject of Mingshu. Every time they take the examination, the talents of the subject of Mingsu are far inferior to those of the subject of Mingjing. After high school, a few people just take idle positions and let them fend for themselves.

This has led to the gradual decline of Mingshu talents, and the court officials have never felt that the decline of Mingshu talents will have any impact on the country, because it seems to have no effect.

Today Li Qinzai gave Li Zhi a good lesson in mathematics in front of Li Zhi.

A clear calculation, whether it is ancient or modern, is very useful, and the impact on the country is also very significant.

Staring at the formula on the sand, and the series of Arabic numerals and weird symbols, Li Zhi's eyes almost popped out.

"These...are you just calculating it? Just using this bunch of weird things?" Li Zhi asked in disbelief.

Li Qinzai nodded: "Yes, this is just one of the functions of Ming Suanke, it can be used in various aspects."

"How to calculate the height of the beams, the size of the bricks, and the depth of the foundation when building a house."

"Army's logistics, food, grass and supplies, how much to transport, how many horses are allocated to the people, how long does it take to get from A to B."

"Wheat is planted in one mu of field, the horizontal and vertical distances between the wheat seeds, the distance, the total number, and the estimated yield."

"Your Majesty, the knowledge needed in all aspects of life can be easily obtained in the Department of Mining and Arithmetic. Just like what I just did, draw a series of weird symbols, and you can get the answer in a moment."

Li Zhi straightened up involuntarily, at this moment he had really begun to listen attentively.

"What does this string of weird symbols mean?"

"I call them arithmetic symbols, and Arabic numerals..."

Li Zhi frowned: "What is Arabia? Is it a place name? Why isn't it called 'Datang Numbers'?"

"Well, you can call it whatever you want. It actually originated in Tianzhu, and it was spread to Dashi many years later before it really became popular. It is very simple and convenient to remember numbers."

Speaking of "Da Shi", Li Zhi's complexion was not very good-looking, and he couldn't help snorting.

Dashi is also the Middle East Arabia mentioned in the previous life, bordering on the Western Regions of the Tang Dynasty.

During the reign of Zhenguan, the Tang Dynasty ruled the Western Regions and destroyed the Gaochang Kingdom. Anxi Protectorate was established in Xizhou to rule the 36 countries in the Western Regions. For friction, Datang and Dashi are old enemies.

Li Qinzai demonstrated on the ground with a long stick, and said: "If we use our Chinese characters to count numbers, such as nine thousand eight hundred and seventy six, please see, Your Majesty, seven characters are needed to write the number of thousands, which is slow and inconvenient, and it is easy to make mistakes. If you use Arabic numerals..."

"Datang numbers!" Li Zhi corrected with a serious tone.

"Uh, yes, Datang Digital."

I dare not argue with Li Zhi, any intellectual property rights, any place of origin are all floating clouds, as long as I think it belongs to Datang, then it belongs to Datang, and I don’t accept it.

"Hey, with Datang Numerals, you only need to draw four symbols to write out the thousands digit."

As he spoke, Li Qinzai wrote down the four numbers "9876" on the sand.

Li Zhi widened his eyes, compared the difference between numbers and Chinese characters, and then nodded slowly: "Yes, it is really easy to use. Are these symbols created by Jing Chu?"

"Your Majesty, as I just said, it originated in Tianzhu, and later..."

At this time, the gentle and elegant Li Zhi was exuding an imperial aura, and he interrupted him with a heavy wave of his hand, and said calmly: "It doesn't matter, it was created by Jing Chu, and it was taken over and used by Datang. From now on, it will be called Datang number."

Li Qinzai grinned, this unreasonable face, very much like a woman in love,... Did he learn it from Empress Wu?
Li Zhi pointed to those arithmetic symbols again, and said, "These weird symbols..."

Li Qinzai learned smart this time, and said in a confident and firm tone: "It's all created by my minister, exclusive copyright, and offenders will be punished."

Li Zhi smiled with satisfaction, very pleased with Li Qinzai's success.

"The timing of the pursuit of the two armies you just calculated...is it really the calculation of Ming Suan Ke?"

"Yes, I call it a 'mathematical formula'. Everything in the world can use formulas to demonstrate their laws. If you understand these laws, everything is under control."

Li Zhi was shocked, he is an emperor, no matter how gentle and refined he is, he is also an ambitious emperor, and he is especially fond of the words "everything is under control".

Li Qinzai was really worried that the hypertensive patient in front of him would burst his blood vessels with excitement. If something happened in the Li family's village, Li Qinzai would be tricked to death.

So Li Qinzai hurriedly explained: "I'm exaggerating. What I just said is the calculation method, not that I can really master it. Even if everything in the world has not been calculated, it is already under the control of your majesty. The way of clear calculation is just to let the world understand it better." It's just the law of things."

Li Zhi's expression gradually calmed down, he was obviously no longer a hot-blooded middle-aged middle schooler, and his congested blood vessels were not so boiling.

"I didn't expect Ming Suan to have such a magical effect..." Li Zhi murmured.

Li Qinzai said: "Your Majesty, a clear calculation is of great use to the state. It is as big as marching and deploying troops, farming per mu, as small as food, clothing, housing, transportation, houses and bridges, etc., and the laws can be calculated in advance..."

"However, I heard that the imperial court only selects a small number of Jinshi scholars in the Ming Dynasty every year, and so few scholars are recruited for such a great use of mathematics. If this knowledge is lost, it will be a great loss to the Tang Dynasty."

Li Zhi stared at the formulas on the sand in a daze. After a long time, Li Zhi smiled wryly and said, "Maybe the imperial court didn't pay enough attention to Ming arithmetic, but Jingchu might as well think about it again. In the world, besides Jingchu, there are others who are so proficient in arithmetic." who?"

(End of this chapter)