Matteo Ricci wrote out the puzzle as a simple binary equation. As a college graduate in later generations, even junior high school students in later generations can easily find answers to questions, Qin Li naturally disdains them.

But even so, Qin Li was secretly surprised, full of admiration for Matteo Ricci. You know, this is the Ming era, when no one was delving into mathematical problems, Matteo Ricci had already begun such research, which shows that Matteo Ricci is indeed not simple.

Qin Li smiled slightly, then calculated the answer lightly, and explained the method to Matteo Ricci in detail.

When Matteo Ricci heard this, his thin and snow-white face was immediately filled with surprise. Yes! He was shocked. It was really not easy for Qin Li to recognize those Arabic numerals. At this time, the numbers used in the Ming Dynasty were still Chinese characters with capital letters.

Although Arabic numerals are simple and easy to write, they were introduced to the Ming Dynasty more than 100 years ago. But people don't recognize it, and no one really uses Arabic numerals, let alone takes them seriously.

Moreover, Qin Li not only knew the letters that appeared in the binary equation, but also could easily pronounce them, and the pronunciation was very accurate, which surprised Matteo Ricci even more. You know, the letter Aix is the letter of the Italian state. Matteo Ricci had never heard a single person say such a letter in the Ming Dynasty.

What shocked Ricci the most was that Qin Li actually accurately said the two solutions of the binary equation. One of them is still negative. For negative numbers, this is something that Ricci has only heard of in other countries in the West. I didn't expect Qin Li, a great Ming, to say it so naturally.

Matteo Ricci was completely stunned, and he looked at Qin Li in a daze. I secretly wondered, what kind of person is he? It's clearly a demon, a demon of the Ming Dynasty!

After Qin Li finished speaking, he looked at Matteo Ricci's stunned expression with interest, and a smug smile appeared on his face.

It is said that Qin Li wanted to set up an arithmetic class in the county school, but he didn't want to explain equations or anything. He just wants more people to be exposed to the simple knowledge of mathematics, so that they can be better used in life. Reduce a lot of the troubles in life caused by the lack of mathematical knowledge.

He believes that with the basic knowledge of mathematics that Matteo Ricci has mastered now, he is fully qualified for the basic mathematics class of the county school.

Qin Li knows very well that the enlightenment of a nation's intelligence is not an overnight thing, it needs to be gradually and slowly penetrated.

Lin Yan'er and Qimeng's stunned were no less than Matteo Ricci's. They never thought that Qin Li, a person who had never read, would know so much, and suddenly solve the problem that Matteo Ricci, who was regarded as a genius by Li Bo, could not solve for a few months.

How many things did Qin Li have that they didn't know? What a weirdo, a prodigy, a monster.

Everyone present fell silent for a while, but Qin Li was the first to break the silence, and he asked disapprehantly, "Mr. Matteo Ricci, I don't know if you still have any questions?" If you have any problems with arithmetic in the future, just ask me. I, Qin Li, will definitely give you a detailed answer. ”

It's an understatement, but it's full of confidence.

Indeed, Qin Li is indeed very confident. Through Matteo Ricci, he came up with only one question of a binary one-time method. This shows that the development of mathematics in the West at this time was still at a very shallow level.

Matteo Ricci's admiration bowed deeply to Qin Li and said, "Lord Qin, in the future, I am willing to be the teacher of your county school, and I will not charge a penny." ”

"Huh! You agreed, but I, Qin Li, am also very strict in choosing teachers for the county school, and I still want to test you. The corners of Qin Li's mouth were slightly raised, but there was a hint of banter on his face.

Matteo Ricci was stunned for a moment, but at this time, he already admired Qin Li very much, and said in a loud voice, "Very good, I am willing to accept the test of Lord Qin." ”

Qin Li opened his mouth and proposed a few very simple physical phenomena around him for Matteo Ricci to explain.

Matteo Ricci is really good, and after a little contemplation, he can explain it. But even so, Qin Li was already very satisfied.

Qin Li opened a basic physics course in the county school, not to teach any advanced physics formulas, but just to let the students know about the occurrence of some common physical phenomena around him. Some simple mechanical application principles are taught, which is more convenient and simple to use in life and production. In this way, it can provide a foundation for the development of future science and technology, so that future science and technology can develop faster.

Qin Li and Matteo Ricci talked for a long time before Qin Li slowly nodded and agreed to hire Matteo Ricci.

Matteo Ricci was overjoyed, he actually used the most noble etiquette of the Ming Dynasty, and solemnly knelt down and kowtowed to Qin Li several times.

The content of the conversation between Qin Li and Matteo Ricci, Lin Yan'er, Qi Meng, Wen Zhengming, and Li Bo naturally couldn't understand it.

But seeing that Matteo Ricci actually kowtowed to Qin Li in the end, Lin Yan'er and Qimeng's little faces immediately overflowed with cheerful smiles.

In their opinion, Matteo Ricci was disdainful of Qin Li at the beginning, but in the end, he admired Qin Li in a thousand ways. This shows that Qin Li's ability is still very great.

Both of them thought that following a man like Qin Li in the future would be the greatest happiness in their lives. In the days to come, they should grasp Qin Li well and cherish Qin Li even more.

Qin Li hired Matteo Ricci as a professor of county school, and solved the problem of Qin Li personally teaching arithmetic and physics in the county school, which was not a big deal.

What Qin Li never expected was that this Matteo Ricci would help Qin Li a lot in the future. In the future, Qin Li fought on the battlefield, and the strong ships and guns used on the battlefield and advanced weapons were indispensable for Matteo Ricci's participation. More importantly, Qin Li can become the richest man in the Ming Dynasty in the future, and Matteo Ricci is also indispensable. This is all for later, so I won't mention it here.

led Matteo Ricci back to the county school, and it was already dusk. Qin Li saw Tang Bohu and Zhu Zhishan, and he couldn't help but comfort him. Through this incident, Tang Bohu and Zhu Zhishan really saw Qin Li's skills.

Tang Bohu accepted such a good apprentice Qin Li, how could he not do his best to help, teach students well in the county school, and do his best?

At dinner time, two large tables were set up in the dining room of the county school.

Huang Tian, the chief secretary of the county government, Long Deyou, the county school, and the four professors hired by Qin Li, including Tang Bohu and Matteo Ricci, all gathered together and had a good time.

……

The next day, the students who came to the county school to sign up for study were enrolled one after another, and the county school was overcrowded and lively for a while.

The students' accommodation was all arranged in the morning, and in the afternoon, Qin Li had to sit in person, preside over the students' exams, and then plan to divide the classes into grades.

What Qin Li didn't expect was that after the students had just finished eating at noon, they gathered in groups at the door of Qin Li's teaching office, shouting, "Lord Qin, you are the teacher of the county school, we heard that you never study, but just a person given by the emperor, and you have no real talent to learn." We want to ask what can you teach us? Can we gain fame by following your studies? ”