Back to Ming Dynasty with Industrial Revolution System

Chapter 1189 Math Genius?

It has been a year since Li Jinde and the others arrived in London, and the various constructions of the empire are still in order.

Determined to promote science and technology and build a modern industrial country, Chu Yun slowed down the pace of external expansion and focused on development in a low-key manner.

Beijing Normal University Hall, Department of Mathematics.

"You have been studying in the field of analysis for a while, and today's topic is the variational method. That is to use the variational method to transform a problem in other subjects, such as mechanics, into a problem of finding the extreme value of a functional. Let's look at the steepest descent line first. problem, then look at the EL equation."

"Assuming that friction is not considered, only gravity is considered. On an inclined plane, two orbits are placed, one is a straight line and the other is a curve. When falling down, does the ball on the straight track reach the end faster, or the ball on the curved track?" A blond female mathematician draws a simple diagram on paper with a pencil.

In front of the good-looking Italian female mathematician, there is a younger oriental woman who is not inferior to her in the slightest.

"A normal person's intuition should be that the ball on the straight track will fall faster, because the straight line between two points is the shortest. But in fact, the ball on the curved track will fall faster, because the ball on the curved track reaches the highest point first. Speed." Liu Rushi replied.

"That's right, here comes another question. There is only one straight line between two points, but there are countless curves. So which straight line will make the ball land the fastest?" asked the blond female mathematician.

Liu Rushi frowned slightly. Since the teacher raised this question, it must not be as simple as it appears on the surface.

She tried to answer: "Is this line an arc?"

The blond female mathematician shook her head: "It's not a circular arc, but a cycloid. I will prove it next, and I will only deduce it once. If you have any doubts on the way, ask questions as soon as possible. When I complete a proof, you have to re-deduce my derivation process."

"Yes!"

Liu Rushi felt as if she was facing a formidable enemy, and then Agnesi demonstrated to her the final solution to the problem of the fastest descent line, which was far more difficult than this era.

Under Agnesi's guidance, Liu Rushi discussed with her all morning before starting to re-interpret the proof.But her interpretation is very smooth, and there are not many blocked places.

Agnesi re-read Liu Rushi's proof of this question, and there was no obvious expression on her face whether she was satisfied or dissatisfied.

Liu Rushi watched her teacher nervously from the corner of her eye. Agnesi taught her a little harshly, which made her very awed by this teacher.

"So-so..." Agnesi's face was still frosty after reading it, "After the holiday, you have to arrange time to study Monge's differential geometry, Lagrange's analytical mechanics, Laplace's analysis of probability theory... I I am also learning from other scholars recently, and I will arrange more in-depth courses for you."

Although Liu Rushi heard a lot of seemingly difficult courses, he still cheered up: "I will study hard!"

"Tomorrow is the Dragon Boat Festival holiday, so today's lesson ends here. Sometimes you need to combine work and rest, don't have a small circle like me. Well, you can go." Agnesi said.

"Teacher, do you have any arrangements for the Dragon Boat Festival? If there is no arrangement...can you go to enjoy the lanterns with us?" Liu Rushi knew that Agnesi, as a math genius, still has a tendency to be autistic, so she wanted to invite her.

"No, I already have an invitation," Agnesi said.

Liu Rushi was slightly surprised, but still pursed her lips and said with a smile: "Then don't disturb the students."

The Italian female mathematician Agnesi who was summoned also left her classroom. At this time, there were several young mathematicians waiting outside the classroom.

"Anessi, what do you think of the new female disciple? This is your third disciple." Several mathematicians saw Liu Rushi leave before seeing Agnesi come out, and asked with great interest. .

"When I was young, I had never been exposed to advanced mathematics. She was able to achieve such an achievement in a short period of time with the simple mathematics knowledge of the entrance exam. It shows that she has a very high talent in this area. It's just that she didn't have such an atmosphere before. She didn't It's just a chance contact," Agnesi said.

"I didn't expect that someone as demanding as you would be satisfied with her. It seems that she is a talent to make." Several mathematicians said.

"I don't know how far she has progressed in the past few years... After all, the field we are studying is only the first mathematics after the Renaissance. It is difficult to start a new field, but it is not so difficult to learn a known field , Sometimes I think that she will soon finish the knowledge we have now, and our reserves are still too small." Agnesi said.

She was a mathematician in the mid-18th century. At this time, calculus was just in its infancy, and the era of modern mathematics had just begun. The fields of graph theory, topology, group theory, and non-Euclidean geometry were not even in their infancy.

Although all the mathematicians summoned by Chu Yun came from the 19th century, there were no mathematicians from the 20th and 21st centuries.For the unknown of future generations, mathematicians who are committed to the field of mathematics feel more curious and understand their own insignificance.

Liu Rushi didn't know that Agnesi was worried about running out of knowledge reserves, so she went to the No. [-] Middle School in the capital to pick up Chen Yuanyuan from get out of class.

At this time, Chen Yuanyuan was standing at the door of the No. [-] Middle School, carrying a slanted cloth bag.When she saw Liu Rushi, she happily waved to her.

"Did you study hard today?" Liu Rushi walked over and asked.

"Of course I did. I was among the top three in the class in this assessment." Chen Yuanyuan said proudly.

"The top three didn't win the first place?" Liu Rushi said.

"Sister, your requirements are too harsh. Those who can enter the No. [-] Middle School are not ordinary people. There will always be one or two geniuses who occupy the top of the list, and they can't be surpassed even if they work hard." Chen Yuanyuan pouted.

The two of them, who are at the level of a country and a city, were walking on the street, attracting many people's attention.

"You didn't work hard, so how do you know that you can't surpass the genius in your eyes? You must know that you can enter a private school, which is much better than your sister's time. You should cherish this opportunity." Liu Rushi said.

"Okay, okay, I know everything." Chen Yuanyuan said.

"I'll give you extra math lessons when I go back today."

"Good sister, tomorrow is a statutory public holiday, and even workers have to pay for their work, so please let me go."

"Then sister will double the homework for you."

"Don't, it's better to kill me."

Liu Rushi and Chen Yuanyuan chatted and returned to their home.

It may be that they don't know how lucky they are to be able to learn knowledge beyond the times, but they just take it for granted.

(End of this chapter)