People who have learned all six books of mathematics, Li Yuanjia has not seen it.

For example, Ma Liang, the principal of "Han Wangfu Primary School", is the person who has studied "Mathematics" in the most depth, at least Li Yuanjia is quite satisfied. Although the completion of "Mathematics" did not stop Ma Liang from becoming a "mathematician" of this era, the kid began to use Arabic numerals quite proficiently, and there was no problem with the children in the professor's house.

With the exception of Maleonn, everyone else has learned how to use Arabic numerals and is proficient in using them, but none of them have been able to fully complete the content of the six books.

And......

Li Yuanjia knows very well in his heart how much content these six books contain!

In addition to what is "Tianzhu Number" and how to use "Tianzhu Number" to perform simple four operations, the following books are quite "difficult". If you have to let Li Yuanjia give a standard, it should be the level of the Olympiad in primary school and the first grade of junior high school!

Even for the mathematicians of the Tang Dynasty, it would not be too easy to fully understand these things.

After all, they not only need to learn mathematics, but more importantly, they also need to learn to understand this mathematics in the mathematical language of Arabic numerals!

To be honest, it's certainly not easy.

It's like a Chinese learning English and then using English to learn mathematics!

So when Li Tai said that he had finished studying, Li Yuanjia was so surprised.

This kid's expression didn't seem like he was joking, and the pride and pride on that face were so obvious, which showed that Li Tai was very confident in his so-called "learning".

But how is that possible?!

Even if Li Tai has a good foundation in mathematics, but in just a few months, he learned Arabic numerals, used them proficiently, and then learned all the mathematics from the first grade of primary school to the first grade of junior high school?

Let's not talk about whether the speed is fast or not, this is the twelfth year of Zhenguan!

You are an ancient person, and you still learn math textbooks written in Arabic numerals, and you don't need to find someone to teach you, just read the book and understand it all?

Seeing the unconcealed surprise on Uncle Eleven's face, Li Tai smiled slightly, picked up the cup and took a sip of tea, and then chuckled: "Naturally, I have completely learned it...... Uncle Eleven, what's so strange about this? ”

“……”

Looking at his eldest nephew's light and breezy appearance, Li Yuanjia really wanted to take off his shoes and paste his face!

It's too annoying.

Perhaps it was Li Yuanjia's twitching cheek muscles that made Li Tai feel a hint of danger, the King of Wei, who had been known for his intelligence since childhood, put down his cup and said with a smile: "It is mainly written by Uncle Eleven...... Ahem, how do you say that? Simple, detailed, and easy to understand, if it were like "Sun Tzu's Sutra", the little nephew probably wouldn't have that ability. ”

"Haha, that's right!"

Hearing him say this, Li Yuanjia was suddenly relieved, and he laughed a little proudly for a while.

The old problem of ancient people writing books was too economical.

Li Yuanjia didn't think of this at all, after all, books such as "Analects" and "Mencius" are all the same, and they are the same for modern people in the future. But when he started to read ancient math books, or medical and technical books, this kind of abbreviation was simply tingling!

To give a simple example, for example, the division method in "Sun Tzu's Sutra" is written: "The method of division: multiplication is different from multiplication in the center, division is at the top, if the six is the law, the hundred is the truth, the six is divided by the hundred, and the second rank should be entered, and the order is under the positive hundred." Divide six by one, then the law is more and the real is less, and it cannot be divided, so it should be retreated to ten, and the law is divided by the truth, and the words are six and the hundred is reduced to forty, so it can be divided. If there are more laws and fewer laws, they should be a hundred, and they should not be retreated, so if there are ten footsteps, they should be placed in the ten hundred places (if there is a gap in the first position, the law will be retreated two. The rest of the Dharma is like multiplying the time, and there is a surplus of the law, with the Dharma as the mother, and the surplus as the son. ”

Li Yuanjia didn't know how the literati of this era had seen it, anyway, he had a headache when he saw it.

And when he wrote the division, he used a full five pages, two pages of theory, two pages of example problems, and one page of practice problems, which was simple, detailed, and clear at a glance!

Is it not easy to learn the formula?

So after listening to his nephew's words, Li Yuanjia will be so proud, because in this era, only he dares to write like this! With a paper-making workshop, he can make his own ink, and there are even engraving workers to engrave engravings, Li Yuanjia can use six books to write things that other mathematicians can finish in half a book.

Those poor mathematicians, do they dare?

If they dare to write like this, Li Yuanjia will dare to say that there will be more than half of the people who are willing to read their books - how much time will it take to copy the books just once? How much ink and paper are used?

I can't afford to read, big brother!

Only a super tyrant like Li Yuanjia can print his math books into books regardless of the cost, so there is a trace of the possibility of promotion.

As for the input-output ratio or something, anyway, the loss is a loss.

And......

While being proud of the simplicity and ease of understanding of his writing, Li Yuanjia actually saw the faint contempt on his eldest nephew's face, and knew that the other party must be a little disdainful of himself because of the "vulgar words" in these six books.

In these days, where are the literati writing books so white?

Simple, straightforward, without the beauty of words, it is just like the feeling of Song Ti characters in everyone's eyes. Especially for a talented prince like Li Tai, who can edit the "Kuodi Chronicles", the words in the six volumes of "Mathematics" are simply like ......

To be honest, Li Yuanjia really doesn't want to use that book to describe himself, the only thing he can say is that Li Tai can insist on reading six books of "Mathematics", and completely understand and learn it, which can only show that this kid is really interested in this science!

As long as someone is willing to learn the "Mathematics" written by himself, what is it to be despised by him?

And seeing his open-minded face, Li Tai also looked strange. He has always been very interested in this Uncle Wang, otherwise he would not have taken the initiative to learn this so-called mathematics. It's just that Li Tai himself didn't expect that from the time he carefully read the first volume of "Mathematics", he would be really interested in those strange numbers.

Out of control, I took time out of my mind every day to study and ponder carefully, and I actually finished these six books!

That feeling is simply hearty.

Therefore, it takes a lot of time for Li Tai to accept, and he can endure reading the rough text, just to enjoy the pleasure of solving those problems. Especially now, Li Tai couldn't help it, and asked the question he had been puzzled about for a long time: "Uncle Eleven, how did you come up with the idea of using Tianzhu numbers to solve the problem of chickens and rabbits in the same cage?" With those equations, the puzzle suddenly became too simple......"