"Come with me, my lord."

"Hmm."

Li Tai, who was thinking about things to himself, just nodded, and followed the inner attendant to the palace. He didn't know how many times he had been to this manna hall, and he could feel the place even if he closed his eyes, so he didn't hesitate at all while walking while making careful calculations in his mind.

Li Tai walked carelessly, but the attendant next to him was a little frightened.

This King of Wei, he obviously doesn't look at the road!

Although the place in the hall is large enough, there are also a lot of bottles and jars of decorations next to it, in case the king knocks over one or two...... It doesn't matter if something breaks or something, if it hurts this person, then he's going to be miserable.

Fortunately, there was nothing to do along the way, and when he was about to walk to the place, the chamberlain quickly flashed to the side: "King, please." ”

"Hmm...... Well? ”

Raising his head a little dazedly, Li Tai realized that he had walked to the place, and not far in front of him was the emperor's desk.

Quickly shook his head, and quickly took back the thoughts that were sent out, Li Tai stepped forward and took a few steps before saluting: "Son-in-law Li Tai, I have seen my father." ”

Li Shimin, who was reviewing the recital, heard the voice, raised his head and smiled gently: "Tai'er is here?" Come on, quickly show the King of Wei. ”

Before the emperor's voice fell, two chamberlains had already moved a huge Taishi chair and placed it behind Li Tai. This chair is almost exclusive to Li Tai, and the emperor knows that his son is too fat and uncomfortable to sit in an ordinary chair, so he specially asked someone to make him a "tailor-made" large chair.

After he sat down, Li Shimin was completely like a loving father, and asked with a smile: "Tai'er, what do you want to drink today?" Why don't they give you a cup of goat's milk? ”

"Father, the child wants a cup of tea."

Shaking his head, Li Tai directly said to the eunuch next to him: "The tea brewed directly with boiling water, you don't need to put anything else, will you do it?" ”

"Yes...... Yes, please wait, my lord. ”

After being stunned for a moment, Li Shimin's personal eunuch nodded hurriedly and went to make tea himself. He knew that the emperor loved this son very much, and after King Wei finished speaking, His Majesty waved his hand directly, so naturally there was no need to ask for instructions.

And after he left, the emperor asked with some curiosity: "I remember that only your eleventh uncle likes this way of drinking tea, right?" T'er, why did you start drinking like that? ”

"Hehe, I learned it from Uncle Eleven."

After smiling, Li Tai said: "Actually, Erchen didn't like it before, but when I went to visit Uncle Eleven a few days ago, I drank it with him again, and slowly tasted some flavors...... Father, although this tea is a little bitter, but the aftertaste is quite sweet, it is from that day on, the ministers began to like to drink tea like this. ”

"Eleven? What are you going to do with him? ”

With a gleam in his eyes, Li Shimin asked seemingly casually.

Li Tai didn't notice the slight change in his father's expression, and replied with a smile: "Does my father know about how many books Uncle Eleven wrote by himself?" ”

Li Shimin was stunned when he heard this, and said with some hesitation: "Write a book? You're saying it's called ...... Well, it's an arithmetic book written with that kind of Tianzhu number? ”

"That's right, it's those six Mathematics!"

Nodding, Li Tai then smiled: "Erchen was also curious at the beginning, so he asked Uncle Eleventh Emperor for a set, but I didn't expect it to be quite interesting to take it back and see it!" So after reading those six books, Erchen deliberately went to King Han's mansion to ask for two more books from Uncle Eleven......"

"Hmph, nonsense!"

Before Li Tai finished speaking, the emperor snorted coldly.

Li Tai, who was scolding this nonsense, was stunned, and his heart was a little apprehensive for a moment. Fortunately, after Li Shimin took a breath, he immediately said angrily: "This old eleven, he just secretly wrote a few books, and he dared to name them "Mathematics"? I don't know how thick the sky is! “

"Uh......"

After the corners of his mouth twitched twice, Li Tai understood why his father was angry.

It is true that learning this word cannot be used casually.

However, after hesitating for a while, Li Tai still said cautiously: "Father, in fact, from the perspective of the ministers, it may be a little inappropriate for Uncle Eleven to use the word "mathematics", but it is indeed very simple to use Tianzhu numbers to calculate...... Father, do you know? The chickens and rabbits in "Sun Tzu's Arithmetic" are in the same cage, and it takes a lot of time for everyone to calculate ordinary mathematics, but after using Uncle Eleven's equation, more than a dozen breaths can get the result! ”

"Sun Tzu's Reckoning? Chickens and rabbits in the same cage? ”

After listening to his son's words, Li Shimin suddenly looked confused.

Although there are a lot of dry goods in the emperor's stomach, they are basically concentrated in the "serious books", and even the level of poetry and songs cannot be considered low. But arithmetic or something, being an emperor has never been very cold, let alone studying "Sun Tzu's Sutra" and being in the same cage with chickens and rabbits.

However, in front of his son, Li Shimin was unwilling to show his "ignorance", so after coughing twice, he waved his hand and said, "Okay, don't talk about these trivial things, let him do whatever your eleventh uncle wants...... I don't care how amazing Math is, but you have to remember that it's just a trail after all, and you should never indulge in too much of it. ”

In the emperor's opinion, a prince to study any mathematics is simply not doing his job!

No matter how magical those Tianzhu numbers are, how fast the calculation speed can be compared to others, it is not something that a prince should ponder. Especially his sister-in-law Li Shimin, how can he be as ambitious as Lao Eleven?

"Yes, Father, the child understands."

Although he was a little unimpressed, Li Tai didn't dare to go against the emperor, so he immediately nodded respectfully.

But in this heart, Li Tai pouted.

If he had listened to the emperor's words before carefully studying mathematics, Li Tai naturally didn't have to say anything, and he wouldn't even read those books again. But now that he has finished learning and experienced the joy of mathematics, how could Li Tai give up?

Especially the two books he just got from Han Wangfu, Li Tai almost couldn't put it down.

At this time, the old eunuch who had gone out in a hurry just now finally came back, carefully holding a wooden plate, and then offered a cup of tea on it to Li Tai's hand.

Picking it up, Li Taiweiwei frowned, and then nodded with satisfaction.

It's not as delicious as the tea of Han Wangfu, but it's still the same taste.

Seeing his son's enjoyment, Li Shimin raised his eyelids and hurriedly asked, "By the way, Tai'er, did you come to the palace today for something?" ”

"Yes, Father."

Hurriedly put down the teacup in his hand, Li Tai smiled and said, "Erchen heard that the eleventh emperor uncle made a military order, saying that he could build three hundred overturned cars in a month, right?" ”

"Well, that's the case."

Li Shimin's eyes narrowed and nodded.

"In that case, Erchen also wants to ...... Hey? So that's it! ”

Li Tai slapped on his thigh, and the surprised voice suddenly startled the emperor, and Li Shimin's face instantly darkened.