Demoness, Where Are You Fleeing To?

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The second question is, looking at the seven floors of the towering tower from a distance, the dots of red light are multiplying. There are three hundred lights in total. How many lights are there on each floor?

It means that the Observation Tower has seven floors. The number of light points on the lower floor is twice that of the upper floor. It is known that there are 300 red lights in total. How many lights are there on each floor?

Li Xuan almost didn't think about it, and the calculation came into his mind.

x+2x+4x+x+6x+32x+64x=3

So there are three on the seventh floor, six on the sixth, twelve on the fifth, twenty-four on the fourth, forty-eight on the third, ninety-six on the second, and one hundred and ninety on the first. Two cups.

Li Xuan was domineering and wrote the answer on the rice paper: "Change the third question for me!"

When the Imperial College student silently handed out the questionnaire for Chapter 3, he glanced sideways at Zhen Huandou next to him, and saw that the latter's brows were furrowed and he was making calculations.

Li Xuan looked at the third question - there is something whose number is unknown. When counting three or three, there are two left; when counting five or five, there are three left; when counting seven or seven, there are two left -

It means that there are some items that I don’t know how many there are. I just know that if I count them three by three, two will be left; if I count them by five by five, three will be left; if I count them by seven by seven, there will be Two remain. What is the minimum number of these items?

Just like before, Li Xuan quickly listed the calculation formula - 70×2+2×3+5×2=233, 233-05-05=23.

The answer is twenty-three or a multiple of twenty-three.

At this time, Li Xuan found that both Long and Wang turned sideways and looked at him with almost worshipful eyes.

"You see what I'm doing, can't you solve the problem?"

"Just watch you." Long Rui shook his head: "What problem are you still solving? We didn't even finish reading the problem just now, and you already solved it. Long really admires Brother Qian's talent. Got it!"

Wang Jing thought that it was no wonder that Qian's brother's chess skills were superior to his. This kind of quick thinking is naturally unmatched when used on the chessboard.

Li Xuan has already taken the fourth question and found that the difficulty has increased slightly. This is a geometry question that was rare in ancient times.

He still wrote down the answers fluently, but the next five questions became more and more difficult in Long Rui's eyes. But in Li Xuan's eyes, the difficulty is not much different.

And when Li Xuan finished writing the ninth question, Zhen Huandou was still solving the sixth question. At this time, there were even drops of sweat on his forehead.

Chu Wen and Xi Hanqing next to them looked frustrated. Just looking at this situation, they knew that Zhen Huandou, who was the number one in arithmetic among the younger generation in Nanjing, had been crushed by the captain of the Six Daosi Division.

The two of them were just wondering, how could such a great god be hidden in the Suzaku Hall of the Six Daosi Division, and how could it be related to Wang and Long?

On the high platform, Quan Dingtian clenched his hands into fists, his eyes filled with confusion.

"It took less than half an hour!" The pale-faced Imperial College Master Si Ye sighed, and then asked curiously: "Brother Quan hasn't found the opportunity to introduce the Dharma Protector into the Confucian sect?"

Quan Dingtian's face darkened when he heard this: "I was wrong before. With his talent and amazing talent, no matter which path he chooses, he can achieve great achievements. There is no need to switch to Confucianism." Dharma. But if I use means to force you, it will be counterproductive."

Another Si Ye, who had a fat figure and a general belly, looked forward to it: "Let's take a look at his answer to the last question."

The last question was a question he asked himself, so he paid extra attention to it.

"I wonder what Brother Tong's last question is about?" Quan Dingtian asked curiously. He knew that the man in front of him was not only a great scholar from Jiangsu and Zhejiang, but also a famous calculator in the world.

Si Ye, whose surname is Tong, raised his lips slightly: "The test is about pi!"

Quan Dingtian was stunned when he heard this: "Pi? The most accurate number I remember was obtained by my ancestor Wenyuan two thousand years ago. It seems to be three and one four one five nine two six?"

"That is a number, and there is also a surplus number, which is three and one, four, one, five, nine and two seven. But my master used Zu Wenyuan's method of calculation and density to get it accurate to the eleventh decimal place——"

Si Ye, whose surname was Tong, said with a smile: "I have no intention of giving this question a try. As long as you are familiar with the "Ten Books of Suan Jing", you will not be able to get into trouble. As long as you remember Zu Wenyuan's number and surplus number, you will be able to get it. If you can go further, I will reward you generously. But now I am looking forward to the answer from the Protector."

At this time, the boy named Si Ye suddenly moved slightly and looked at Li Xuan in the examination room, who had already held the tenth question in his hand.

"Asking about the ratio of a circle's circumference to its diameter? Pi?"

Li Xuan thought to himself that this was really a sub-question, and then he wrote ‘three and one four one five nine two six five three five eight nine seven nine three two three’ on the rice paper without even thinking about it.

After writing to the seventeenth digit, he did not write any more. Firstly, it is troublesome. Secondly, the record before modern mathematics is seventeen decimal places obtained by an Arab mathematician in the 15th century. The method he used is also geometric, which is similar to the method used by ancient Chinese mathematicians to calculate pi. similar.

"This is? Seventeen?"

When the Imperial College student picked up Li Xuan's answer sheet, he couldn't help but let out a soft cry.

Zhen Huandou, who was answering questions in the distance, looked over with a slightly strange look.

He hadn't seen the tenth question yet, so he didn't know what the straight-talking man was talking about.

The latter's expression was solemn: "My Lord Commander, are you sure that the value after the seven decimal places is accurate?"

"It's certain." Li Xuan said calmly: "Please hand in the answer."

He believed that there must be knowledgeable people in this fantasy world.

And not long after the Imperial College student hurriedly sent the answer sheet to the high platform, he hurriedly walked down: "Master Duwei, your score is better than these two! In addition, Tong Siye invites you to come up to the stage to talk about it. .”

The Si Ye of the Imperial College is the assistant official of the Imperial College's wine ceremony. His official position is from the fourth grade to the lowest. He is in charge of the administration of Confucian teaching and oversees the seven schools of Imperial College, Taixue, Guangwen, Simen, Lu, Shu, and Suanfan.

In the Jin Dynasty, his status was extremely noble, and he could not be appointed without being a great Confucian. Generally, he served as a concurrent bachelor and lecturer in the Hanlin Academy, and he was expected to become an official in the future.

When Long Rui and Wang Jing heard this, they couldn't help but be overjoyed. As long as they pass the 'numerical' test, they will be more than 90% sure of the next 'literary' test.

The only opponent was—the two looked at each other across Li Xuan, sparks faintly bursting out where their eyes met.

Li Xuan pondered for a moment, and then asked: "Master Si Ye, what does he want from me?"

"I'm asking for a solution!"

The Imperial Academy officer spoke directly and bowed slightly to Li Xuan with great respect: "Master Siye can only count to the eleventh decimal place, which is exactly the same as your answer, Master Duwei. But after the eleventh decimal place, your Excellency cannot be sure." Yes. Even the official is very curious."

Although he is much older than Li Xuan, there is no priority in learning, and those who master first come first.

Even in terms of official position, Li Xuan, a sixth-grade Demon-Suppressing Captain, was one rank above him. The official position of Liudaosi cannot be regarded as an ordinary military officer.

Li Xuan suddenly had a headache. Calculating pi was very troublesome.

There are several ways to solve pi. The geometric method used by the ancients was very time-consuming. It was a delicate job that required endurance of loneliness and repeated calculations. The analytical method that appeared later was to use infinite series or infinite continuous products to calculate pi. It’s also cumbersome to explain.

"But it's late today." Li Xuan looked at the sky and the beauties waiting outside the venue, and shook his head: "Please reply to Mr. Si Ye, the calculation of pi is more complicated, and it is difficult to explain clearly in a moment. In the future If I have time, I will discuss it with Sir Si Ye."

He wanted to use the time he had to explain to Tong Siye, wouldn't it be nice to spend it with Xue Meimei?

Why did you ask Xue Yunrou out?

He had always wanted to do it again after being disturbed by Princess Changle because of his previous good deeds!

As a result, he left his girlfriend aside and went to talk mathematics with a bad old man - Li Xuan thought to himself that he would only do this unless his brain was kicked by a donkey.

And just when the Imperial College official's face showed a hint of disappointment, Li Xuan got up and walked out of the venue. That 'Jiang Zuo Model' Zhen Huandou had already received the tenth question from another invigilator.

His expression was immediately startled, and then he stood up suddenly: "It's pi! The tenth question is actually pi! Yuan Zhi said, the captain's pi has reached the seventeenth decimal place? Since it is a score Come on, the answer must have been confirmed? I dare you, student, to ask the captain to take a look at his answer sheet!"

The Imperial Academy officer frowned and then laughed: "I can show it to you, but I have to wait until you finish the exam. If you make such a loud noise, I will deduct points from you."

Chu Wen and Xi Hanqing, who were sitting next to Zhen Huandou, were already on the verge of crying.

In terms of total points, they were already ahead of those two guys. Do they still need to deduct points now?

The calligraphy and articles of Long Rui and Wang Jing are not inferior to them.

Only then did Zhen Huandou realize that he had made a mistake. He looked at Li Xuan who was walking to the outside and hesitated to speak. He wished he could chase him out and ask for advice. But then he noticed the pleading eyes of his two junior brothers, and could only sigh slightly, and continued to sit down and write quickly. UU read www.uukanshu. net

"I didn't know that you, Xuanlang, were doing a number calculation, so you were so good at it?"

When she hugged Li Xuan's arms again, Xue Yunrou actually had admiration and fascination in her eyes: "Why doesn't Mr. Xuan learn the Tao of Formation? With your talent in counting, you will definitely become a master of the Tao of Formation in the world."

Li Xuan is self-aware. The reason why he is able to show his holiness in front of others is because he stands on the shoulders of giants.

But this does not prevent him from continuing to show off: "I am not interested in this and have no interest in studying it. After all, martial arts alone consumes all my energy now. Let's go and take a look at the backyard of the Imperial College. Last time I came here Here, I haven’t taken a close look at the scenery here.”

In fact, he didn't dare to take Xue Yunrou to continue shopping in the market. Xue Yunrou declared the right of possession happily. The dim and sad look in Coke Qianqian's eyes made Li Xuan extremely heartbroken; the gazes between Jiang Hanyun and Luo Yan seemed to Like swords and guns, cold sweat dripped down his back.