Carefree Prince In Tang Dynasty

According to legend, the authors of the strange book "Tui Bei Tu", which has been predicted for thousands of years, are veterans Yuan Tiangang and Li Chunfeng. Asking Yuan Tiangang to pick a date for Li Xin to get married in person shows that Li Shimin attaches great importance to Li Xin.

In order to show that he valued Li Shimin's order and also showed respect for Li Xin, Yuan Tiangang personally brought three kits to the Chu Palace and handed the kits to Li Xin. Each kit contains an auspicious day for marriage.

Although Li Xin didn't really believe in these gossips, it didn't mean that he didn't want to make good things for himself and Chen Youlan's future married life. Therefore, he also respected Yuan Tiangang a lot, met him personally, made tea, and had a long talk with him.

After this conversation, Li Xin realized that although Yuan Tiangang was a Taoist priest, he was by no means a magic stick.

Speaking of counting, Yuan Tiangang cupped his hands suddenly with a smile and said, "I have heard that His Royal Highness the King of Chu has a lot of research on arithmetic, and the poor Taoist has always wanted to ask for advice but has no chance. If His Royal Highness is free today, I wonder if he would like to give advice to the poor Taoist?" One or two?"

"Mr. Yuan speaks too seriously." Li Xin said hastily, "School of arithmetic is broad and profound, and this kid is only just getting a glimpse of it. I'm ashamed to give advice. Let's discuss it together."

Perhaps because of studying the relationship between the astronomical calendar and the movement of stars, Yuan Tiangang is obviously more interested in geometry and quite accomplished. However, his calculation method is biased towards the traditional geometric method of Euclid, which is a test of ingenuity and brainpower.

If I have to say it, it feels a bit like an Olympiad. Many problems must be cleverly deformed and cut and repaired to get the result.

All in all, Li Xin is not used to this way of thinking. One reason is that he has been out of elementary school arcane for too long, and the other reason is that he has already mastered the more general method of analytic geometry, and now he is required to give up analytic geometry and switch to a lower-dimensional purely geometric way of thinking , which is very difficult.

When he and Yuan Tiangang were writing and drawing on paper, all they could think about was where to set an origin, and the problem would be solved, so it looked stupid on the surface, and basically Yuan Tiangang was talking about it.

In fact, Yuan Tiangang also deliberately tested Li Xin. As a close minister of the emperor, he had long heard that Li Xin knew a lot of strange knowledge, and he dabbled in arithmetic and strange things. Now that we have encountered it today, it is inevitable that we will feel a little tentative. If Li Xin's performance is indeed outstanding, he really has a few difficult questions to ask for advice.

However, at present, Li Xin's performance is somewhat unsatisfactory. Of the several questions Yuan Tiangang raised, Li Xin only came up with one or two.

It seems that under the prestigious name, it is actually difficult to live up to.

Yuan Tiangang thought with some regret.

At this time, Li Xin put down his pen and said with a wry smile: "Mr. Yuan's questions are really weird and very difficult." To be honest, it's really not his skill, but Yuan Tiangang's geometry problems that I don't know where they came from. It's complicated, and pure geometry is really not enough.

Yuan Tiangang's Qi-nourishing skills are naturally top-notch. Although he already felt a little contemptuous in his heart, he said with a smile on his face: "It's okay, I'll study it slowly after I go back."

Li Xin said hesitantly: "Actually, the younger generation has a completely different way of thinking, which may be able to solve all similar problems."