"Many people say that mathematics is a boring subject, and it is a lack of qualities. Some people say that learning mathematics is not romance. Well, here, I want to prove to all the male gods who study mathematics. You must be wronged." Well, okay, I didn't expect that Lu Ning would change his mind and talk about this aspect. This made everyone curious.

Even the principal of Jiaotong University was a little surprised. He thought that Lu Ning might say how to prove the "Broadly speaking Riemann Conjecture" or talk about the research on mathematics. He really didn't expect that Lu Ning would use this perspective to talk about mathematics. To be honest, science and engineering men in various universities are not very popular with girls. After all, they are representatives of straight men. In a more fashionable way, they are all repressed men.

The science and engineering men sitting below were a little excited. Is Lu Ning going to whitewash them? Well, one by one, with the reputation of a straight man with four eyes on his back, those girls would rather go to the liberal arts men than find the boys of their own subjects.

"Maybe some people say that I'm forcibly washing my hair. Okay, I have examples. So, I'll publish a number for you first, and then tell a story." As he said that, Lu Ning wrote a formula on the whiteboard behind him: r=a(1-sinθ), a simple formula. Not to mention liberal arts students, even some people who study mathematics don't know what this meaning is for a while? For a moment, there are also discussions below.

"Everyone, you can try to draw the graph of this equation." Well, the mathematics majors have already started to solve the problem. This graph of this equation is not difficult, but the people who came up with the graph of the equation exclaimed, "Oh my God, it's so incredible, it's actually the shape of a heart. Oh my God, it turns out that mathematical equations can do this too?"

"I said, do you know the equation r=a(1-sinθ)?" The president of Jiaotong University asked a professor at the Mathematics School standing beside him, and there was an incredible look on his face. Lu Ning was really, okay, I didn't expect that he would do this. Tianxiu, was he created it himself?

"r=a(1-sinθ), an uncomplex equation, but to be honest, I really haven't involved it." The mathematics professor shook his head, as if it was the first time he learned that, well, maybe, Lu Ning said it well, mathematics is not just a rigorous subject, but also so romantic. It seems that he had only focused on academic research before, and he forgot the charm of math skills.

"Everyone, when I see your expressions, I know that you have solved the graph of this equation. This is the famous "heart-shaped line". Well, it seems that you are all very ignorant. In foreign countries, boys from the mathematics department usually express their love shyly in love letters, and the formula r=a(1-sinθ) is a good way to express it."

At this moment, Lu Ning had already drawn the graph of this equation on the whiteboard behind him, which allowed more people to see that the coordinate diagram was the shape of a heart, which also made everyone present widen their eyes. This is really romantic, isn’t it?

You know, this is not an ordinary flat heart, it is a three-dimensional heart shape, and it is perfect.

"Okay, everyone, you have already seen the equation graph of r=a(1-sinθ), so, next, it's time to get to the story." Lu Ning glanced at the bottom of the people. At this moment, everyone's eyes were focused on Lu Ning.

"The story takes place in a French noble family in 1596. Descartes' father was a member of the parliament and had a relatively high social status. Therefore, the young Descartes had almost no worries. Of course, if you have to say that the young Descartes had any problems, it was that he had been weak since childhood and was not very strong."

As the story begins, Lu Ning's magnetic voice directly brought everyone into his story. It can be seen that Lu Ning is a good storyteller and can attract everyone to listen to.

"When Descartes was in his fifties, the terrible Black Death broke out on the European continent. Descartes was forced to wander to Sweden and became the math teacher of Swedish princess Christine. They lived with each other every day, which made them love each other. But at that time, the little princess was only 18 years old. When the king knew their feelings, he was furious and ordered Descartes to be executed. Later, because of the little princess' plea, he was exiled to France, and Princess Christine was also under house arrest by her father."

Well, a classic love story, not to mention the rest, it involves aristocrats and princesses, and interagency love. These are all gimmicks, arousing the interest of everyone to continue listening.

"Well, such a love story cannot have a perfect ending like Disney. After Descartes returned to France, he fell seriously ill. He sent letters to the princess every day, but they were ruthlessly intercepted by the king. Christine never received any news from Descartes." In that era, if he had the Black Death, it was the ending of death.

You know, the Black Death at that time killed one-third of the population of the European continent, and it was a turbulent era.

"After the thirteenth letter sent to Princess Christine, Descartes died. The last farewell letter had no words, only a short formula: r=a(1-sinθ)." Lu Ning sighed as he said here.

The audience below were a little sad. Yes, I thought it was a romantic love story, but I didn’t expect that it would end in tragedy. However, in this way, it can become a classic, just like Romeo and Juliet, tragedy can become a classic.

However, no matter what, the formula r=a(1-sinθ) has indeed become an eternal classic. At least at this moment, this formula was spread from Lu Ning's mouth, and it can even be spread throughout China in a short period of time. Needless to say, at this moment, the campus network of Jiaotong University has been uploaded by mathematics students to this equation and this beautiful and miserable story.

"I really didn't expect that Lu Ning would tell such a story." The principal also sighed, and he was brought into it by Lu Ning without knowing it.

"This is not a better proven of the romance of mathematics, isn't it? Principal?" The professor in the mathematics department also looked admirable. Well, such a teacher may be what all students expect. It's a pity that Lu Ning will never become a teacher.
Chapter completed!