Future Library, Chapter 80, Astral Warlock Society

and other mental arithmetic tutorials brought Cheng Jinzhou a surprise. It's much more than just computing energy

Actually, let's talk about the fast calculation method. The Chinese abacus is passed through guò in the brain to simulate an abacus. It is possible to write the answer while saying the question. But this way of counting. It often takes a long period of practice.

On this piece of land in the Great Xia Dynasty. Even Cheng Jinzhou realized the importance of the calculation method. It was also difficult for him to study further. Behind closed doors is for geniuses. He's just a cheating doctor.

But. The "Preliminary Calculation Tutorial" is not as simple as a simple calculation. Cheng Jinzhou read it in order. Several new practical formulas immediately appeared. New way to calculate angles and distances. The corresponding calculation process will be greatly simplified. Add to that the fast calculation method - this is definitely not a textbook of the 21st century. Judge it so. Let him turn the book faster. Cheng Jinzhou's surprise. Reversed Shen Cong's depression. Xiao Shen is full of curiosity. I ran for two hours with a 13-year-old kid just to see the rarity. The result is to the end. It's really interesting to see only boiling sulphuric acid water - hot sulphuric acid bursting open. But the time is short. What especially made Shen Cong dissatisfied was. He thought he would harvest Cheng Jinzhou, who was his younger brother. did not show his talent to the boss and bowed down after learning. It's really not clever at all.

Of course. It's also fun to burn the wheat pile instantly. So Shen Cong kept asking: "How did you do it?" What kind of astrology is this? Where is your star engraved? ”

Xiao Cheng didn't explain a word. He only glanced at him arrogantly and said, "Do you know where you can find Xiang Xinxing Warlock?" ”

Same words. He if o points before the present. Shen Cong must have left him in the original. Left to their own devices. Now he scratched his head and said, "Why don't you go to the branch of the association and ask?" Astral warlocks have many ways to do it. ”

"Let's go, then." Cheng Jinzhou took the lead out of the warehouse.

Shen Cong was on it instantly. He asked, "Did you burn the wheat?" Water and runny acid? ”

Cheng Jinzhou rolled his eyelids. Guess whatever.

Unexpected star arrays. The inexplicable attitude frightened Shen Cong for a while, and classmate Shen Cong used the star array in school. It doesn't matter if there is a level or not, it is the pole. When he met a new classmate, he had this method, and Shen also quieted down.

When sitting in the car. Cheng Jinzhou devoted himself to studying the new mental arithmetic tutorial.

Mathematics. It has always been a process of moving from simple to complex and back to simple. For example, junior high school students are now learning the simplest of the three quadrats. i.e. a cubic equation without a quadratic term (a flat cubic equation without x). The answer is simple, and it can be memorized in 2 minutes. In the 16th century. Italians, however, regard it as a general preservation of martial arts secrets. It was also a well-known case in the history of mathematics when Felllo, a professor of mathematics at the University of Greater Bologna. Succeeded in solving equations that seem to be exploding simple today, as almost the most important mathematical achievement of the time. Fair did not make it public. It's the snow that hides it. It was passed only to his own student Fior. o After. Another self-taught Italian, Tartaglia, openly claimed that he had mastered the more difficult three-equation solution (with quadratic terms). but not equations with a primary term). Hear this. The Professor's apprentice, Fior, challenged Tartaglia. It's like a martial arts master. The two agreed to solve a similar equation for 3o within 3o...... In full view. The challenge ended dramatically, and it took Tartaglia two and a half hours to finish the battle with more solutions. Fior was still thinking about it.

However, if you put two gentlemen who have mastered the world's most advanced algebraic solutions. China in the 21st century. The so-called Olympiad students must come out. There are a lot of secondary schools that can abuse them at will. Because we have mastered the solution of a more general cubic equation. Fewer equations. Fewer memories. Faster and more accurate answers. Modern mathematics is full of research. It's not just about making the calculation process simple. It also makes the way of thinking simpler - mathematicians use jerky formulas to study problems. In the end, it's up to the average person to use them.

The same is true for the Elementary Mental Arithmetic Course.

Cheng Jinzhou almost rolled his face with a light in his eyes. Shen Cong, who was sitting next to him, was very uneasy. Wait for the time when it's almost there. I couldn't help but say, "Are you hungry?" ”

He doesn't have a green light yet. The difference between glauca and golden eyes......

Xiao Cheng is immersed in a good learning atmosphere. Now I don't care about anything else. He snorted twice in his nose. Don't even lift your head. Fortunately, he still remembers the story of wealth not being revealed. The movement of the fingers is subtle. Only shaking his head and shaking his head as if reciting.

He needed a little bit of capital to be able to live in the Great Xia Dynasty. If it's the first time you arrive. Cheng Jinzhou, who is in the family of the rich. And the cringe of wanting to maintain the status quo. The actions of Cheng Bingxun's father and son made him completely understand. I have no wings to take care of.

Walk through the bustling streets of the capital. The Cheng family brought it to him. There is only the most basic protection - the right to be a free person. Besides. They all want him to fight.

In fact. From small to large. Cheng Jinzhou really rarely needs to fight for anything.

Shen Cong was even more depressed. Seeing that he was slaughtered by the city guard in front of the second gate. Immediately sat up. He patted Cheng Jinzhou on the shoulder and said, "You won't be caught by a ghost, right?" ”

The small body can't stand the heavy blow. Cheng jumped up with a "squeak". Qi Dao: "What do you want to know?" ”

"What kind of star array are you using?" Shen Cong hadn't asked where the star array came from.

Cheng Jinzhou said truthfully: "I didn't use the star array. ”

"You lied to me."

"I really didn't use the Star Array."

"Impossible."

When the soil of sin is lost. There is no crime in the world. The same can be said for honesty.

Xiao Cheng is like the fruit of honesty of sin. In constantly

swaying.

……

The gate due south of the inner city of Xiajing is made as the Mingde Gate.

Within the range of the city gate oomi. There are no buildings. Form a small square-like area. It is a playground for many children.

A little further north. The market is bustling with activity. It's at the end of Cross Street. A circular building stands in the middle of it. There are also two guards with spears at the door.

Treatment. In addition to the Imperial Palace, only the Astral Warlock Association can enjoy it.

The courtyard of the Xiajing branch allows anyone to enter and exit, but certain credentials are required to enter the building. Shen Cong stepped forward to explain the situation. Show the family crest on your waist. Then he beckoned to the process, Jinju took it again, and at this moment, he took it again. Pulling Xiao Cheng, he said, "Don't run around here." I can't save you if something happens. ”

Cheng Jinzhou looked up at him, it was the first time he had come to the Star Warlock Association.

Look from the outside in. The association resembles a Chinese coffee shop and a library. Many people sat around the round table and talked. Waiters shuttle between rooms. Beyond the space of several hundred square meters is a stone door. Inside, there are two-story wooden shelves filled with books. In comparison. The stone gate was full of people. There were few people in the stone gate. Many people looked at Cheng Jinzhou in general. But no one came in or out of it.

Shen Cong found a free table to sit on. A few random things were ordered. He tore off the paper that was taped to the corner of the table and wrote the words of inquiry. It is handed to a dedicated waiter.

"That's it?" Cheng Jinzhou noticed his movements. No, asked.

"Can you expect the astral arts to recruit you personally?" Shen Cong scoffed.

Wait for Cheng Jinzhou to speak. There was a sound of laughter from behind. said jokingly: "Little sister-in-law." Where did you find the country nobles? ”

I heard the word "little aunt". Shen Cong's face changed, and he stood up, and the bench was kicked away.

Cheng Jinzhou looked fixedly. It was four teenagers in white robes and holding fans. He is the same age as Shen Cong. The oily head noodles are more abundant.

Naturally, no one is allowed to bring in from the association's branches. Shen Cong is not tall. On the edge of the station. It's a bit of a lonely force.

"How. You're a math idiot. What to do in the association? Do you beg others to be pitiful and pitiful?" the leading kid slapped his palms rhythmically. It's not loud. It's like an old friend chatting.

Shen Cong gritted his teeth and didn't say anything. The laughter and scolding between the children of the aristocracy are often not so simple. Young people don't have a lot of weight when they move their hands. He couldn't hit 4 people right. Just glared at the neck.

"You're just like your mother. Auntie. The guy standing at the front whispered. The sound was so small that only two or three people around could hear it.

The little sister-in-law is the aunt. Cheng Jinzhou suddenly understood. This Lord Shen turned out to be the concubine of the Shen family. No wonder there is one person to serve when you don't travel. And the latter one. It seems to be the son-in-law.

Although it is also a son-in-law. Although also often bullying people. Cheng Jinzhou still couldn't get used to it, and interjected: "A few." That's all for today. Please. ”

His voice raised slightly. Hopefully, the four of them will rise to the challenge. In its opinion. The Astral Warlock Guild is like a high-level guild. Since you can't fight. It's inconvenient to quarrel. Being unreasonable is naturally a very unnutritious thing. As for Shen Cong's housework. It's not his concern anymore.

"The little ones are going." The fan-bone man has no good way. He is three or four years older than Cheng Jinzhou. It's like a college student looking at a junior high school student.

"In the middle is Shen Yan. Behind are Shen Zhe, Shen Hua and Zhang Ruitao. Shen Cong said to Cheng Jinzhou.

The three Shen families may all be sons-in-law. There are too many sins that the state does not want. Stood up and said, ". Let's go inside and read the book and wait for the response. ”

The four of them were stunned for a moment. Instead, he laughed. A few tables around him turned their heads to look at them. That Shen Yan pretended to pant for breath. Patted his head with a fan and said, "Oops." The country aristocracy amused the dead. The association's library is also what you want to enter? ”

He said, his head spinning. "I heard about it today. The little sister-in-law walked with a new school boy. That's you. ”

"That's right." Listen to him. That is, he also went to school in Hongbunkan. This is not surprising. The really strange Fang is Shen Cong. It is difficult to enter Hongbunkan as a concubine.

"What about the Star Warlock with you?"

Cheng Jinzhou shook his head and didn't know what to do. I'm a little tired of the current situation. He has a new mental arithmetic tutorial. He also has mathematical knowledge that is hundreds of years ahead of others. Except for the lack of star arrays that can directly apply this knowledge. It's not much worse than a genuine Star Warlock. But here: entangled with a few "little hairy children". It's a little unpleasant. simply pulled up Shen Cong. Pointing to the stone gate, he said, "Let's go in." "This is the branch of the Astral Warlock Society. Entering the door must have something to do with mathematics. Naturally, he was undaunted.

Shen Yan and the others hugged their chests. Make a good look.

Cheng Jinzhou took the lead. Cross the two rows of round tables. Only then did he ask Shen Cong in a low voice: "What do you want to enter the stone gate?" ”

"You don't know?" Shen looked like he was about to faint.

"Nonsense."

"To contribute points. If there is a tribute point, there is a certification stone. All it takes is a stone to take the two of us in. Shen Cong reported the last ray of hope.

Cheng Jinzhou slapped his forehead and said, "The certification stone is not worn on the body." ”

When you get 4 contribution points on the day. Liu 1-star warlock gave him the certification stone.

Shen Cong almost felt like he was in danger of dying. Ke whispered: "Really? Where there is a certification stone, there is a record. Try. ”

Not far away. Shen Yan, who was watching the show, was smiling. I saw Cheng Jinzhou and Shen Cong passing through the stone gate without hindrance.

The smiles of the four suddenly froze.

……

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