Looking at Ye Xianggao with a smug face, Li Tingji's face turned black to the bottom of the pot, this thing actually ran out to stir up the situation when he and His Highness were arguing, and the most important thing is that he didn't have any idea of this math, he actually solved it? !

"Brother Er Zhang, how is it? The old man said that there is a way to solve it, but he is not lying! ”

Seeing Li Tingji's extremely difficult face, Ye Xianggao was very happy, as if he had vented all the sullenness he had suffered just now, and suddenly felt that he had worked hard in the study for more than an hour in vain. Pen "Fun" Pavilion www.biquge.info

However, Zhu Changluo didn't notice the secret competition between the two, he stared at the manuscript handed over by Ye Xianggao, and was shocked in his heart, and only after a moment did he ask in a hurry.

"Mr. Ye, dare to ask where did Mr. learn this solution?"

Anyone who has studied mathematics knows that the basic idea of modern mathematics is the combination of numbers and shapes, that is, to solve various mathematical problems through the principle of complementarity between geometry and mathematics.

It can be said that number and shape are the two major schools of thought in solving mathematical problems, but in ancient China, in fact, more attention was paid to the application of numbers, and the study of geometry has stayed in the Mohist theory of the pre-Qin period to the nine-chapter arithmetic of the Western Han Dynasty, and since the father and son of Zu Chong in the Northern and Southern Dynasties, the study of geometry has stagnated.

Since the emergence of abacus in the Northern Song Dynasty, mathematical researchers have shifted the focus of their research to the aspect of numbers, ignoring the importance of geometry.

In the final analysis, it is because the emergence of abacus has greatly improved people's ability to calculate numbers, and relatively speaking, the importance of geometry to solve problems has begun to weaken, so it is normal for people to abandon forms and choose numbers.

However, it is important to know that history is advancing, the times are developing, and in today's era, relying only on the power of numbers is no longer enough to support the study of more esoteric mathematical problems, and due to the stagnant development of geometry, it is also difficult to advance the development of mathematics today.

Zhu Changluo's problem is quite difficult to solve by simply calculating the method, and he is confident that there are very few people in the world who can solve it, but in fact, it is very easy to use geometric thinking.

And now in the manuscript that Ye Xianggao handed him, he used geometric thinking methods to solve it.

Of course, it can be clearly seen that Ye Xianggao's understanding of geometry is not deep enough, and most of the operations still rely on numbers to complete, but the key steps are the use of obvious geometric ideas, and even with Zhu Changluo's half-baked mathematical level, he also sees a familiar figure from it......

"Back to Your Highness, this method is called Geometry, and it was learned by the old man from a foreign missionary!"

Although Zhu Changluo's reaction was a little strange, Ye Xianggao still spoke truthfully.

"Gentile missionaries? Who? ”

A name vaguely appeared in Zhu Changluo's heart.

"This person's name is Matteo Ricci, his name is Xitai, the old man once had a relationship with him, and they had a very happy conversation, so he once taught the old man some geometric methods, but I didn't expect to be able to use it in His Highness's question today!"

Sure enough, it was him! Ricci!

If there was one of the most famous missionaries of the Ming Dynasty, it was Matteo Ricci!

He was one of the first missionaries to spread Catholicism in China, but if he were to do so, he would have been just an ordinary missionary, and Ricci's greatest achievement was that he brought Western research on astronomy, mathematics, and geography to China.

Today's West has just ended the Renaissance movement, began to explore the modern natural sciences, and thus stepped into the era of industrialization, it can be said that it was from this time that China began to lag behind the West, and then caused the tragedy of being beaten by the West a few hundred years later......

It's a pity that this history can only be history, Zhu Changluo's eyes flashed with a glimmer of light, and he clenched the fist in his sleeve robe tightly, since God let him come to this era, he is destined to change the fate of this empire!

"I wonder where this person is now?"

Restraining his slightly excited heart, Zhu Changluo slowly spoke.

Today's China is still in the center of the world economy, and various Western technologies have just begun to develop, and Matteo Ricci's greatest contribution lies in two, one is to draw a complete map of Kunyu Wanguo, which is also China's earliest map of the world.

The second is ...... Zhu Changluo's gaze fell on Ye Xianggao's manuscript, translating the most representative mathematical masterpiece in Western history, Euclid's geometric original!

In later generations, the original idea of geometry was only a textbook for middle school students, but now, Zhu Changluo is the first time to see, unceremoniously said, if the original idea of geometry can be promoted in China and combined with the ancient mathematical thinking, it will be a milestone in the mathematical research of the Ming Dynasty!

"Well, I'm afraid I'm going to disappoint His Highness, Matteo Ricci left for a short stay in Jinling City, and then set off for the pilgrimage to His Majesty in Beijing, but if His Highness is interested, the old man can introduce ...... to His Highness."

Ye Xianggao naturally saw that His Royal Highness in front of him was interested in Matteo Ricci, so he spoke.

"Then thank you Mr. Ye!"

Zhu Changluo took a deep breath and arched his hand.

In any case, Matteo Ricci must be connected, he was just an ordinary person in his previous life, and his understanding of Western history was very limited, so in addition to the knowledge that Matteo Ricci brought, he was more urgent to know how far the West has developed today......

However, this matter is not in a hurry, after all, the traffic restrictions in this era, so after calming down a little, Zhu Changluo turned his gaze to the two in front of him again, sorted out his language slightly, and Zhu Changluo spoke.

"The kid is stubborn, the emperor will not give up, and he will choose his own king's teacher! I wonder if the two gentlemen would like to enter the palace to teach Chang Luo? ”

After all, the chief bows, this is a serious apprenticeship.

"This ......"

Li Tingji didn't expect this scene, but he also knew it in his heart, otherwise, Zhu Changluo, the prince, would not have come to his mansion today to see the scenery.

But Ye Xianggao was really taken aback, you know, he is only a second-class jinshi, and he is definitely not qualified to be Zhu Changluo's teacher, but now Zhu Changluo obviously treats him and Li Tingji equally, which really surprises him!

"Jinqing!"

Seeing that Ye Xianggao was stunned for a while, Li Tingji couldn't help but let out a low sigh and secretly tugged at the corner of Ye Xianggao's clothes.

You know, teaching a prince, and maybe even a future prince, is not always available.

If you grasp it well, you may even be able to do it from the dragon!

Although he and Ye Xianggao are noisy on weekdays, as old friends in the same year, their personal relationship is still excellent, so they naturally don't want to see him miss the opportunity!

Immediately, Ye Xianggao also reacted, and a big opportunity was beckoning to him.

Immediately and Li Tingji looked at it together and said

"I don't dare to ask for ......"

ps: The next chapter will be sent at ten o'clock~