Chapter 556 ○

"Constant mathematics, variable mathematics, probability mathematics, and fuzzy mathematics, these four kinds of mathematics also correspond to four different types of civilization. The development of civilization calls for the emergence of corresponding mathematics, and the development of mathematics reflects the times. , and sometimes, also inspire the times.”

   "Constant mathematics, corresponding to classical civilization."

   "Classical civilization can also be said to be primitive civilization, fire civilization, and human and animal power civilization."

   "Xiao Xu, you young people like to listen to songs, I remember a song, the name seems to be "Once Upon a Time Slow"?"

"In the past, the sun became slow, cars, horses, and mail were slow, and there was only enough love for one person in a lifetime." Xu Guangling read one of the sentences, and then said: "This is actually a poem, it was composed, but I also paid attention to the words because of the song. Chen Lao, do you know this too?"

   I didn't realize that Mr. Chen likes listening to music before.

  If he likes it, Xu Guangling can immediately build a sound amplifier system on the mountain, and then the loudspeaker will make a loud noise.

   However, the sound amplifier system has not been set up, and a music room including a recording room is being built.

After all, music is half of Xu Guangling's line of business. Of course, it is a bit false to say this now. With the development of the road of the great master, with the contact, study, and project establishment of medicine, martial arts, food, and the current mathematics system , research, the original music, the weight occupied in the consciousness, is also getting smaller and smaller.

   Xu Guangling doesn't know if he will forget it one day in the future.

   But probably not.

  For him, music is one of nostalgia, and the other is a pastime, which is probably something that will accompany him throughout his life.

   No matter how far he goes, there will always be times when he doesn't think about anything, does nothing, sits down, and quietly plays the last song "Lotus" and the last song "No Wind and Rain".

   For Xu Guangling, as Mr. Chen said before, this is his coordinate origin, at least, one of the origins.

   From a song to remember the person who taught him the song, and then from that person to those two people.

  Xu Guangling's thoughts floated lightly, just like this engraved outside the tent, the distant sky was like a still and fluttering white cloud.

  The sun hangs high in the sky, under the blue sky, the white clouds are like quilts scattered in the sun to dry, like big cotton candy, and very similar to childhood and youth dreams.

   After waking up from the dream, I am not a teenager.

  No sorrow, no joy, shallow thinking.

  Xu Guangling suddenly wanted to drink tea, or he just wanted to hold a teacup in his hand and turn slowly.

   "I heard it at the train station when the old man came to look for Old Man Zhang two years ago." Mr. Chen lightly flicked the leaves behind the orange stalk with his fingers.

   generation bulk.

   heard it, and surely remembered it.

   Xu Guangling nodded.

   "The old days were slow, everything was slow." Mr. Chen said lightly, "Slow and simple, this is also the main feature of classical civilization."

   "Most people work at sunrise and rest at sunset. You can play on a piccolo with an ox, you can go to the fields with food and hoes, you can play chess pieces and turn off the lights, or you can come late in the sky and want to snow, can you have a drink?"

   "In such an era, mathematics is also in a state of initiation, budding and initial development."

   "The times do not need advanced mathematics."

"Even if someone conducts advanced mathematical research, or a genius accidentally breaks through the barriers of civilization, touches variable mathematics or even fuzzy mathematics, and then the results can only end in the study, then shelved, and then lost. , and then forgotten."

   "Or after thousands of years, it will be discovered by later generations, causing a burst of amazement. But that's all."

"why?"

   "Because the times don't need it."

   "Thirty feet don't need forty shoes, and forty feet don't need fifty shoes."

"No matter how good or beautiful the shoes are, if they don't fit, they don't fit, they don't need it, they don't need it. No matter how beautiful or beautiful they are, they can only be put in a shoe box, put in a corner, and then left for a long time. Dusty."

   Xu Guangling nodded.

  The bulk is the bulk.

Even if Mr. Chen is only a master in martial arts, a "one martial artist" and not a master in other fields, it does not prevent him in the slightest from standing at the height of the master, and then from the perspective of a generation of masters, to observe and overlook other systems. .

   Just like that, Wu Zong mastered mathematics.

   And the reason why it is not a generation of mathematics is probably, there is only one reason. That is, "My life has a limit, and my knowledge has no limit." In his life, most of his energy was devoted to martial arts.

   The loneliness in other aspects has been exchanged for reaching the top in the martial arts.

   The gains and losses are self-evident.

   Martial arts is the foundation of this person. Others, those hundred and ten doctorates and the like, all represent scenery.

   Studying with such a teacher, if you want to enter the major of mathematics based on this alone, it is not enough, and you need to learn from other aspects.

   But if it's just for getting started, that's enough.

   This will also be the best and highest-level introductory teacher in the world. If you search all over the world, it is estimated that you will not be able to find ten.

  Xu Guangling decided to add two more chicken legs to the old gentleman for dinner today.

   Well, we don’t have chicken thighs yet, so let’s have two sweet and sour fish!

   "Classical, in such an era, where did the sprout of mathematics and people's understanding of mathematics begin?"

   "Start with ○."

   Mr. Chen used his thumb and index finger to circle a "○" shape, "This is a zero and a circle, and it is the initial starting point."

   "When a child is just born, he opens his clear eyes and looks at his parents. In each other's eyes, the dark pupils are all round."

   "Adults go to work in the fields, step on the footsteps of the sun and the moon, go out with the sun, and return on the moon. The sun and the moon are also round."

   "The tree is round in front of the house and behind the house."

   "Chickens crowing on the mulberry tree, and the chickens (eggs) that lay on the tree are also round."

   "The crops in the fields are harvested, and they have to be pulled back with a small cart. The wheels of the cart are also round."

   "From a circle to an oblate circle, to an irregular circle, and then in contrast, there are also the concepts of 'perfect circle' and 'ellipse'."

   "The wheel of the car is required to be perfectly round, and the more correct it is, the better."

   "The wheel is composed of a circle on the periphery and a wooden strip in the middle as a support. The circle needs to be round, and the strip needs to be straight. The more round the better, the more straight the better."

   "Then, 'rules' and 'rules' appeared. Rules are perfect circles, and rectangles make squares. There are no rules, and no squares can be formed. Even today, compasses and rulers are still essential tools for children to learn mathematics."

   "Then the concepts of radius and diameter, as well as the concept of circumference, also naturally appeared."

   "And then, 'π' appeared."

"3.1415926, 535, 89793, 23846." Speaking of which, Mr. Chen smiled, "Back then, after the first opening, in order to test Memory, the old man had specially found Pi to memorize it."

   "But at that time, limited by the conditions, I could only find five hundred digits after the decimal point, which was not interesting, so later, I took the whole Tang poems and memorized them."

  Xu Guangling nodded, "Chen Lao, to talk about formal non-learning memory, in fact, I also started from the whole Tang poetry."

Having said this, Xu Guangling turned to Mr. Zhang Lao, who was sitting on the side, and said, "Teacher, what about you? By the way, you don't have to say that I can guess that it is related to medicine. Ginseng, Poria and Licorice are like 'like', right?"

Mr. Zhang nodded with a smile, but then said: "You are only half right. Little things like Tangtou Geju have been memorized and will not be forgotten by the teacher. The teacher really reviewed these things comprehensively and systematically."

   "After the review, the first book that I really recite for the teacher is the Internal Classic."

  ==

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  Thanks for the monthly ticket of "Ambition 007".

   (end of this chapter)