After Yanzhou, he entered the Li Cultural Revolution at the end of his studies, and asked to see his predecessor, Mr. Qimian......"

Li Wenge respectfully saluted outside the closed grass hut and signed up, but his address to Ye Qiyu startled Li Bin, who was standing beside him. It doesn't matter if you call your predecessor Mr., how can this ancestor be called casually? For thousands of years, only Confucius and Yanzi were qualified to be called the first teacher, and now Li Wenge called Ye Qiyu the first teacher, as a veteran who has respected Confucianism all his life, Li Bin felt a little unacceptable. However, Comrade Li Wenge obviously did not have the ideological baggage in this regard, and he respectfully waited outside the door, as if a pious disciple was visiting a Confucian master.

After a long time, a very depressed voice came from the room: "Mr. doesn't dare to be a teacher, the first teacher can't afford to be a teacher, Ye Moujie is a cold Confucian, I don't know the general outline, I don't know the history, and I don't have half a lesson in the guests." The previous article condescended to the humble house, and it has been clear enough in the following. The mountain and wild horseman, who has no intention of fame and fortune, the world is human, and the foolish couple has already looked down on it...... Guest, please go back, forgive Ye for being rude, this time I neglected the guest and Brother Wen......"

Li Wenge turned around and smiled at Li Bin and stuck out his tongue, with a look of "really difficult to speak" on his face.

He thought for a while and said loudly: "The Cultural Revolution is not to invite Mr. to go out of the mountain as an official, but to ask Mr. to open a museum and teach him. The study of the ancestors of arithmetic is unfortunately lost in most of the world, and few people study it, so many generations, this study is a great pity. Therefore, the Cultural Revolution set up a planning hall on Fenglin Mountain. If you have a number of young children, please ask Mr. to teach them the art industry, so that the university can be passed on, and the skills of the ancestors will not be extinct. And the ancestors are innocent of the descendants. ”

"Haha......" a strange laugh came from the room, "There are still people who know that calculating is the study of the ancestors, which is also rare!" It's a pity that the world is chaotic, people's hearts are not ancient, and the foolish couple can still wander freely in the mountains to study arithmetic. I'm afraid that I want to protect the leader, but I can't. Since the guests intend to open a calculation hall, they naturally want to hire talents, and the rotten wood like the foolish couple is really unbearable for the teacher, so the guests should go back! ”

Li Wenge was a little surprised when he heard him say that he was a "foolish couple", and turned his head and asked, "Observe, Mrs. Ye is also a master of arithmetic?" ”

Li Bin twisted his beard and smiled: "It's not just a master, Mrs. Ye's family has a family history, and her ancestor is a person from Fanyang County, Youzhou." Later, he moved to Jiangnan. At the beginning of the Tang Dynasty, Emperor Wen prepared to establish Taixue, and sent people to move his entire clan into Chang'an, and advanced his surname by dozens of places in the Shi clan chronicles. Hehe, compared to the wild way of sleeping, the old man's younger brother and sister can be said to be authentic......"

He said these words quite loudly, and before the words fell, the man in the room cried out angrily: "Big brother is too unkind. actually revealed the old bottom of the little brother......"

Li Wenge didn't understand a little, how could the astronomical calendrical calculations passed down from a group of monks be said to be a "wild road"?

However, he didn't pay attention to this for the time being, since the people in the room did not refuse to speak, then there should be room for things to turn.

He thought for a moment and continued: "Mr. Ye, please think about it, the study of arithmetic cannot be popular in the world now, and the pedantic scholars in the world denounce it as a left-hand sidedoor. That is their stupidity, with the great talent of the gentleman, do they not know the importance of calculation to the national economy and the people's livelihood? People stand in the world, move, sit, sleep, eat, and sleep are really inseparable from this knowledge everywhere. If this learning can be carried out in the world, then the disaster of the troubled times can be stopped, the rule of the prosperous era can be prosperous, Mr. boasts of high talent, when there is no view of the door, with what he has learned in his life, he will give all the lives in his pocket, and this learning will be carried forward in the future. ”

Enjoying the Confucian Temple is the highest honor of ancient scholars, and if this thing is taken out, it may have a little bit of effect, right?

The people inside were silent for a moment, as if they were whispering something to someone.

After a long time, the chaimen squeaked open, and a beautiful woman in a cloth skirt walked out with a smile, and came close to say: "My grandson has a strange temper, which makes the eldest brother and the guests laugh!" ”

As she spoke, she stretched out her sleeves and said with a smile: "The two of you are talking inside, and the outside is not human, please don't meet him in general!" ”

When Li Wenge came to this era, it was the first time he saw a beautiful woman, and he had a phobia of beauty in the 21st century and began to make a mistake again, coughed dryly and bowed, but he didn't say anything, and walked towards the firewood room.

The young woman said to Li Bin, "Big brother, please—"

Li Bin waved his robe: "The last time you were the one who drove the old man away in person, he didn't speak, and the old man never had the face to enter your house again......

The young woman was a little embarrassed, lowered her head and said, "Big brother, you don't know that you don't know that temperament, so why should you be serious with him?" ”

Li Bin shook his head: "If you don't take it seriously on weekdays, you must be serious today, otherwise wouldn't your husband and wife blame the old man?" ”

At this time, Li Wenge had already walked into the room, but saw an ugly middle-aged man sitting in front of a wooden table fiddling with a dozen small bamboo sticks, and a little boy poked his head out of the back room, and two big black and white eyes flickered and looked at him.

Li Wenge is not afraid of women, but he is not afraid of men, and laughed: "Mr. is willing to see him, it is really a blessing!" ”

That ugly man is Ye Qiyu, he

After measuring Li Wenge, a look of disdain appeared at the corner of his mouth, and he said coldly, I invite you in, the people are kind, but don't make a mistake......

At this time, the young woman walked in, smiled apologetically at Li Wenge, and then turned to her husband and said, "You go and apologize to the eldest brother and invite him in!" ”

Ye Qiyu rolled his eyes and said dryly: "Don't go!" ”

The woman suddenly became angry, and Li Wenge thought to himself in his heart, it seems that this person is a high-minded and arrogant person, but he doesn't know how to learn. He rolled his eyes and suddenly remembered that history was famously fallacious.

He said slowly: "Mr. Ye, I once met an arithmetic scholar in Xia, and I once asked him for advice on the area algorithm of quadrilateral shapes. Just halve the sum of the lengths of the opposite sides and multiply them together, but you don't know if this algorithm is correct? ”

Ye Qiyu suddenly shook his head: "Fart...... Fart...... Can the swindlers believe it? ”

But the young woman patted her husband lightly and said angrily, "The guest is here, be careful when you speak...... It's like this outside, and people are attacked. It is also learned from the legacy of the ancestors, and it is not your own fallacy, why do you have to open your mouth so meanly? ”

Ye Qiyu snorted and retorted: "The study of calculation is different from the scriptures and history, and there is no way to follow the ancestors and ancestors for eternity. The algorithm skills of the predecessors are mostly mixed, as long as they are sincere people who study and analyze, it is naturally not difficult to see the fallacies. That man is called 'sir', but he is so law-based as the law of his predecessors, isn't this a misguided child, what is it? ”

He turned his face to Li Wenge and said: "Hou Sheng, you use your brain to think about it, a square, one foot long on all sides, according to this algorithm, its area is one foot square......

As he spoke, he picked out four straw sticks of about the same length. Arranged in a square on the tabletop.

—

Li Wenge nodded and said, "Exactly!" ”

Ye Qiyu sneered and stretched out his hand to move the position of the three straw sticks, and asked, "What now?" ”

This time, the pattern on the table changed to a diamond shape.

Li Wenge nodded secretly, but smiled silently.

Ye Qiyu thought he didn't understand: "Stupid, this area is so much smaller than Fang, can't you see it?" ”

Seeing that Li Wenge didn't speak, he simply put the four straw sticks on a line. Said angrily: "I can see it this time, it's still the four edges, the length has not changed, and now what is the area of this quadrilateral?" This is obviously already a straight line, where is the area to speak of? If you follow such a stupid algorithm, the area is still one foot square at this time, is it possible? ”

This question is a well-known misunderstanding in Chinese history, and it was not changed until the Ming Dynasty. Li Wenge took up this question. Originally, I wanted to consider this Ye Qiyu's catties. In fact, if this person also agrees with this algorithm, Li Wenge is ready to hit him first, so that this guy will no longer be so arrogant. Unexpectedly, this person broke through the fallacy of this method in one mouth, and it seems that even if he is not a master-level figure. At least I'm a professional who has been immersed in mathematics for an unknown number of years.

Li Wenge relieved his mind at this time, and he smiled slightly: "I see, Mr. is really a talent!" ”

Ye Qiyu glanced at him and said unappreciatively: "I don't dare to be a high-level talent, I am a child who works a little harder, and after putting it on so many times, I will be enlightened." The world is ignorant, and they use fallacy as a magic weapon, but in fact, they are lazy and unwilling to use their brains! ”

Li Wenge nodded: "What Mr. said is reasonable, I don't know that Mr. has studied so far, and it is possible to plan without raising tools?" ”

Ye Qiyu was stunned for a moment, and looked Li Wenge up and down: "What do you mean by this?" ”

Li Wenge smiled and said: "The villain has studied some calculation methods with some outsiders, which is very different from the method of calculation used by me in the Central Plains, so I intend to have a discussion with Mr., is Mr. willing to give advice?" ”

"Hahaha...... Ye Qiyu laughed again, "It turns out that the guest is from the examination school, okay, okay!" Since the guests want to compete, they will be accompanied by the next! ”

He asked, "Don't you need a plan?" ”

Li Wenge smiled, took out a straw stick from the table, and said with a smile: "Just use this one in the next one!" ”

Ye Qiyu slapped the table: "Okay, let's see what kind of wonderful algorithm the barbarians outside the transformation can have!" ”

After that, he looked up and said, "Lady, please do the question on your behalf!" ”

Li Wenge was about to speak, but the woman smiled and said: "Since the guest has this discussion, he must not worry about the concubine's question, why don't you invite the eldest brother to come, and he will solve the question!" ”

Seeing Ye Qiyu hesitating, Li Wenge smiled and said: "Then the virtuous couple is only afraid that they will not be at ease again, it doesn't matter, but there is a way to do it below, Mr. and below, each have a number, below 10,000,000, more than 10 million, addition, subtraction, multiplication and division each once, and finally list the four numbers, okay?" ”

This is a contest of basic skills. For the calculation expert, the larger the number, the more difficult the calculation, the slower the calculation speed, although it is a purely low-level calculation, but it is a great consideration of the calculation of the operator's memory and proficiency in the use of the chip. This kind of competition has no fancy or much value, and is simply a mode of comparison between arithmeticians.

The beauty of Li Wenge's proposal is that each side should come up with a number of the same order of magnitude, which is equivalent to the number of both sides not knowing the other

I'm afraid that this is the other party has already calculated to bluff himself.

At that moment, Ye Qiyu shouted: "Okay." Good! That's a fair way! Lady, take pen and ink! ”

Li Wenge waved his hand and said with a smile: "Wait, how about winning?" What about the negative? ”

Ye Qiyu said: "If you win, it is impossible for me to go down the mountain, but I can allow you to send those students into the mountain to practice arithmetic under my sect." If I win. I don't want anything from you, so go down the mountain......"

Li Wenge laughed and said: "It's unreasonable, if you win Mr. in Xia, it means that you are enough to teach these students in Xiaxia, why send me into the mountain to ask Mr. to teach in this defeat?" ”

Ye Qiyu was speechless for a moment, and then the woman said: "If my grandson loses, I will ask him to go out and apologize to Brother Li, and personally invite Brother Li in; If the guest loses. The guests went out to invite Brother Li in, is this still fair? ”

If Li Wenge had been shouting that it was unfair on weekdays, but at this moment, in front of this woman, Li Wenge's tongue was extremely clumsy, so he had to admit it with a wry smile and a hard brow.

At that moment, the two of them each picked up a pen, dipped it in ink, and wrote on a piece of paper.

Li Wenge himself took up the pen and wrote down "three thousand eight hundred and forty seven hundred and fifty-five thousand six hundred and twelve," and then put down the brush.

At this time, Ye Qiyu also wrote, and the woman took it, and at the same time took the number written by Li Wenge. Li Wenge fixed his eyes. But he saw that the man wrote "nine thousand five hundred four thousand seven thousand eight hundred twenty-six."

Li Wenge smiled, picked up the pen and recorded the number he had just written on the paper, then put down the pen, and when he looked up, Ye Qiyu on the opposite side had already moved quickly to set up the straw stick, and had already written the first line of numbers on the white paper. Apparently the addition has already been calculated.

This master's calculation speed is so fast, it is really a bit unexpected by Li Wenge, fortunately, he set a four-rule arithmetic problem, otherwise he would have to be embarrassed as a future person.

He stood up unhurriedly, walked to the wall with the ink bowl in his hand, sat down on the floor, dipped his fingers in the ink, and began to stand in a vertical position on the dirt floor......

Soon. He recorded a "133893438" number on the ground beside him.

It didn't take long for him to record a "-56942214" number next to him.

Then he started to calculate the multiplication.

The sub-column of this formula is long, multiplying the eight-digit number by the eight-digit number, and the result will be an extremely perverted sixteen-digit number. Multiplication at such a high level. Even if it is calculated vertically, it takes a lot of effort, but fortunately, Li Wenge's arithmetic foundation is quite good, multiplying layer by layer, and after tossing for a short period of time, he successfully came up with 3671259251059512 results.

At this time, Ye Qiyu's chip stick has been spread all over half of the table, this is already a very high skill, for the calculation, the larger the number calculated, the larger the area of the calculation, the two eight-digit numbers are multiplied, it is not uncommon for people with poor levels to spread the chips in a room, Ye Qiyu is obviously a master of calculation, he divides the numbers into groups and calculates, his eyes are fast and his memory is superb, and he has set up a calculation array on half a table.

Li Wenge wrote down the results with Arabic numerals beside him, and was about to change the ground to calculate the division, but a young and crisp voice came from beside him: "Uncle, what are these zigzags?" ”

As soon as Li Wenge looked up, he found that the young woman had walked to his side at some point, and was watching intently the vertical style she had listed on the ground, while a child of a few years old was squatting opposite him, looking at himself curiously, but he did not know when he ran out of the inner room.

Li Wenge coughed embarrassedly: "This is a big food text, and it is the most convenient to use it for calculations." ”

"Where is the Big Eat? Is it farther than Chang'an? The boy asked curiously.

Li Wenge smiled bitterly: "Far is tight, the big food is more than 20,000 miles away in the west, much farther than Chang'an......"

"What do you mean by these crooked words?"

"These nine different characters represent the number from nothing to ninety-nine respectively." Li Wenge replied with a sigh.

During this time, the woman stared at the several vertical figures on the ground as if she was fascinated, almost completely immersed in them, and turned a deaf ear to Li Wenge and the child's answers.

Li Wenge began to calculate the division, and the boy who didn't count how much he asked again: "Uncle, don't you need to raise a stick?" ”

Li Wenge raised his head helplessly, complaining again and again in his heart, it was easy to miscalculate so constantly distracted. High-level arithmetic is the most taboo to be distracted, but this child doesn't live around to disturb, but although he is dissatisfied, he is embarrassed to openly announce it.

At this moment, the woman sighed leisurely, slowly turned around and said softly to her husband: "Sleep, don't count it anymore, you have already lost this game......"