Vol 3 Chapter 484: Northland School, probability significance

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On the evening of receiving the journal, both Wang Qi and Chen Youjia received a message, and the sender, from the northern kingdom of Wanfamen, cut the Chevron. The content of the letter is very simple. It is this young monk and legend who hopes to meet the two young geniuses who proposed the new law of large numbers and exchange ideas.
Not to mention what Chen Youjia thought, Wang Qi was very excited about it.
The Northern Kingdom corresponds to the Petersburg School in the history of the earth, with representatives Chebyshev, Markov, Lyapunov, etc. Although it is not as good as the name and the sense of existence in the history of mathematics, it is not as good as the European school of mathematics such as the Paris School, Göttingen School, Polish School, etc., but its influence on future generations is not lost to any university school.
Chevrolet is the founder of Wanfamen Northland School. Wanfamen has a number of major repairs and is a rare strong in the fields of number theory, functions, and integration.
After the two responded, it took another day to prepare. On the morning of the third day, they entered the Wanxian Fantasy Realm together. They followed the beacon sent with the letter and came to a place in the Fantasy Realm.
Northland scenery, thousands of miles of ice, thousands of miles of snow drifting. In this silver illusion, a semi-open hut is steaming. Two old men are sitting in front of a few cases, talking about something. The rich always like to set the illusion of the chat room to what he is most familiar with, and this Northern King is no exception.
The old man sitting in the main seat must have white hair, but he is not old, full of spirit, strong in flesh, and a crane hair and three feet long beard are meticulously organized.
Well, in stark contrast to another old man beside him.
Wang Qi couldn't help but be surprised: "Mr. Feng? Why are you here too?"
Feng Luoyi's image is not so unbearable, but it is worse than the meticulous look of Chevrolet. I don't know who was a monk from the Northern Kingdom of Shangwu.
Feng Luoyi smiled and said: "All things in the Wanxian fantasy are handled by me, and I am normal here. Moreover, what you have newly created is very interesting, and I also want to participate-is not welcome? "
Chen Youjia gave Wang Qi a look and bowed his head: "How come?"
For Chen Youjia, who is interested in applied mathematics, Feng Luoyi, the strongest applied mathematician, is simply an idol.
Chevrolet is much more sympathetic than expected. After hearing Wang Qi blurting out "Mr. Feng" once, he glanced at Feng Luoyi slightly. Then he smiled at the two juniors: "You don't need to ignore this guy, nor do you care about me. I just want to talk to two of you young people and talk about your thoughts on probability theory."
Probability ...
Wang Qi looked at the old man with a complex expression in his eyes. The mathematics law he and Chen Youjia called "Chen Wang's Law of Large Numbers" was called Chebyshev's Law of Large Numbers on the earth. In the face of this peer, he always has a strange feeling.
What surprised him even more was the latest paper published by Chevrolet, "A Promotion of Chen Wang's Law of Large Numbers".
That is clearly Markov's law of large numbers.
According to the history of the earth's mathematics, this is the representative achievement of Chebyshev's disciple Markov and the cornerstone of modern probability theory.
Although it has been known for a long time that the research ability and actual level of Shenzhou Xiaoyao are higher than their peers on the earth, but Wang Qi is the first time to be shocked in such a direct way.
Okay, I thought I could finish the law of large numbers quietly by myself, so naive ...
Shenzhou despised the role of probability too much and felt that it was just an approximation of "absolute cause and effect". As long as all the conditions are known, all the uncertainties can be eliminated and the inevitable result is obtained-this is the creed of China. Because the calculation power of Yuanshen is too retrograde compared to the human brain, many monks simply use original statistical tools, and not many famous mathematicians go back to the field of probability. Chevrolet had no idea about probability before.
As for Markov ... he is also a "missing" person. There was no him in the history of Shenzhou, and most of his achievements in the history of mathematics were also developed by the Northern Kingdom monks represented by Chevrolet.
In addition to Markov's Law of Large Numbers as an extension of Chebyshev's Law of Large Numbers.
However, after all, Wang Qi underestimated the world's pastime. Because the accumulation is deep enough, just a little bit of things can inspire them.
This may not be good news for Wang Qi. In the future, he shouldn't want to dominate the complete research chain. He didn't memorize many papers before crossing, but what he can remember now is definitely the achievements that he had known in his previous life and had an important position in academic history. I do n’t know how much such a result can be stared at, and as long as we break through, we will swarm.
However, it seems that this is also an opportunity ...
Chevrolet smiled and said: "I have read your results and it is a great study. How did you two think about starting from this aspect?"
Chen Youjia opened his mouth and said: "This is an idea I had long ago ..."
Wang Qi's voice was inserted neatly, cutting Chen Youjia's words like a sharp blade: "Because this is an inevitable accident, the law of large numbers is the skeleton of the field of probability and the most practical problem in this field. "
Cut Chevrolet's eyebrows raised: "Oh? 'Most'? So sure? What's the reason?"
Wang Qi was comfortable and talked freely: "First of all, we need to think about a question. What is the significance of our mathematics?"
What is the significance of mathematics?
Mathematics is a highly abstract and highly idealized fragile existence, not the same as the physical world. There is no perfect event that occurs according to probability, no truly uniform texture, or even a standard straight line or a standard circle.
We can only draw "approximations" in the physical world. Approximate straight line, approximate circle.
Strictly speaking, the prerequisites of all mathematical theorems cannot be perfectly satisfied in the real world, so the conclusions of the mathematical theorem assertions cannot be perfectly established in the real world.
This conclusion can also be generalized to all theories. The laws mastered by humans are just the statistical average of random events, and that's all.
So, what is the meaning of science and mathematics?
Feng Luoyi nodded affirmatively: "I understand what you mean. The laws of large numbers are all similar and meaningful. My Dao is indistinguishable and close to Dao. Today's Xianmeng's theory and today's Dao probably have such a relationship. ? "
Contingency is inevitable.
Chen Youjia stared at Wang Qi in a daze. Because she had no expression on her face, no one could see what he was thinking.
"This ... this is clearly the first thing I'm doing! You obviously did it later! Why is it prettier than me?"
Chevrolet was very fond of this young man: "You really have ideas. It seems that we need to communicate more."
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