On the way to the classroom, Mei Yi took the printed version of "The Beauty of Mathematics" and thought to herself: Thanks to Miss Teresa's cleverness, if she published "Why is it hard to do bullshit math", she would become a joke.

The math teacher even said that math is bullshit, and it will make people laugh out of their big teeth.

When Mei Yi walked into the classroom, she was startled, and the entire lecture hall was full of 200 seats. He rubbed his eyes, went out and looked at the door number of the classroom again, and made sure that he had not gone to the wrong classroom, so he said, "Are you all from the spiritual class?" ”

An elf student shouted, "Teacher Meiyi, we have all majors, mathematics, literature, music, dance, rhetoric, astronomy, accounting, history, architecture, science, botany...... You're not going to kick us out, are you? ”

Mei Yi said: "I won't, it's too late to welcome." It's just that math class is very unpopular everywhere, and many of the students in the spirit class were scared away yesterday. Why did you come here to suffer this sin? ”

Another elf student said, "We came here when we heard that your math class was very interesting." ”

At this time, some of the students in the spirit class who couldn't find a seat were so anxious that they shouted, "You guys want to make faces, okay?" I have to leave some space for those of us in the class. He's our teacher, not yours! ”

Immediately, some classmates ridiculed each other: "Half of your spiritual arts class didn't attend classes yesterday, and there is no teacher in your eyes at all!" Everybody sees it! We've heard that the teacher will leave in a month in order to keep some of you from being expelled! ”

Mei Yi's head grew when he heard this, and he said loudly, "Please be quiet." Shall I tell you a story? ”

The tense classroom suddenly fell silent. They all know now that the teacher Mei Yi in front of them is the author of "Flower Spirit Fairy Tale Anthology". In the True Spirit Theater, all the plays with the words "Author: Meiyi" are full.

Mei Yi saw that everyone was quiet, so she said: "There was a little gecko playing in the wild when he encountered a big crocodile, and the big crocodile opened its bloody mouth and wanted to eat the little gecko. ”

Everyone tensed up, waiting for Mei Yi to continue.

The little gecko had no escape, so he rushed forward and hugged the big crocodile, crying and calling for his mother. The big crocodile was stunned for a moment, looked at the little gecko carefully, and then hugged the little gecko, wiped his tears and said: "Don't study mathematics, you are biased, see how thin you have become." ’”

The lecture hall erupted in laughter. The unpleasantness just now disappeared in laughter. Those students who did not find a seat either sat on the steps or huddled together with other classmates.

A very beautiful leprechaun student stood up and said, "Teacher, why do we still study math?" ”

Mei Yi said: "Who still has such a question? Please raise your hand and show me. ”

With a bang, almost the entire classroom raised their hands.

Mei Yi smiled and said, "It's the same as I used to." He said to the fairy girl who was still standing there, "Classmate, what major are you studying?" ”

The fairy girl said, "Teacher, I'm studying music, and my name is Bamboo Leaf. ”

Mei Yi said, "Bamboo leaves, hello. Could you please sing us two of your favorite songs? ”

Zhu Ye was a little angry, her status was not low, she was the daughter of an earl in True Spirit City. Although her father did not have fiefs or fiefs, he served in the imperial court. These upstarts were more trusted by the Elven King than the nobles with vast fiefdoms and self-respecting armies.

Mei Yi saw that she was unwilling, so she said, "Please take a seat." So I'll take psychics as an example. In the year 999 of the Elven Era, that is, 500 years ago, the Kingdom Spiritualist went deep into the Demon Realm north of the Tianlu Mountains for nearly a hundred miles, successfully opened a large prehistoric ruin, and brought back a black box. There is a combination lock on it. ”

"There's a circle drawn above the cipher disk," Mei Yi said on the blackboard, "the circumference and diameter are bold, and the first two digits on the cipher disc are 31." There are 8 cipher wheels that can be turned in the back, and now, you should know what the correct password is, right? ”

There was silence in the classroom.

Mei Yi said helplessly: "The last eight digits are 41592653, and they are connected to pi." Isn't it a pity that you have worked hard to become a spiritual master, but you entered the wrong password and died? ”

The students in the spiritual arts class were suddenly ashamed, and the students from other majors laughed.

Mei Yi smiled and said, "Don't laugh, because you will die with you!" Seeing that some people didn't believe it, Mei Yi's face changed, and she picked up the whip and smashed it on the blackboard, and the whip broke off in response, and the huge sound startled everyone.

"I'm not kidding you guys! How do you think the Great Plague of the 1000th year of the Elven Era happened? After the code was misentered, the bottle containing the terrible virus was broken, and the plague first occurred in the palace, then spread to the royal city, and then all over the country, nearly 20 million elves, goblins, and humans in the elven kingdom died at once! ”

The classroom suddenly fell silent.

Mei Yi softened her tone and continued: "Twenty years ago, a young man newly hired by the museum found a broken black box, and he tried to enter pi while everyone was away. ”

Unfortunately, he only counted the last eight decimal places of pi. Fortunately, the virus in the black box has been dissipated, and the last one, he tried from 0 to 3, opened the black box, and found the secret treasure of the relics that has not yet completely decayed - papermaking. This is where papermaking comes in. ”

All the students were fascinated by Meiyi's story. Mei Yi struck while the iron was hot, looked around a few times among all the classmates, and finally picked out two elf boys and two fairy girls, and called them to the podium.

Mei Yi smiled and said, "If we have the same aesthetic vision, you should also think that they are beautiful, right?" ”

After hearing the coaxing of her classmates in the classroom, Mei Yi said, "Their beauty can't escape the laws of mathematics." Let me first introduce you to a concept - the golden ratio, which is about 0.618. ”

At the request of Mei Yi, the students on the stage measured a series of data of the body of the same sex, and were surprised to find that the ratio of the height of the lower and upper part of the belly button, the ratio of the calf to the thigh length, and the ratio of the forearm to the upper arm were close to 0.618!

Mei Yi also measured some of the famous paintings copied by later generations hanging in the classroom, and the proportions of the figures and buildings in these famous paintings also conform to the golden ratio. Even the angle between the two leaves that Meiyi picked from the outside is also in line.

They're crazy!

"The beauty of mathematics is not only in these places. For example, if there are students in the science class on the spot, you must be familiar with this formula. Mei Yi turned around and wrote F=GMm/ on the blackboard.

^2。

As a result, the students in the science class said that they had never seen this formula. Mei Yi had to explain the meaning of this formula again, and by the way, she talked about Kepler's three laws and the method of calculating the orbits of stars.

This knowledge of physics is far ahead of this era, and students have a hard time understanding it. After finally explaining it clearly, Mei Yi said: "The students in the science class can cooperate with the astronomy students to see if the movement of the stars conforms to these formulas. If so, it proves that I am legislating for the sky. ”

Just then, it was pouring rain and thunder outside the classroom. Mei Yi looked out the window and said with a smile: "God is warning me not to leak the secret of heaven, I'm a little scared." Shall I tell you how to measure the speed of lightning and thunder and the weight of the planet beneath our feet? ”

The classroom was filled with laughter and exclamations. All the students listened attentively to Meiyi's lecture, for fear of missing a moment.

At the end of the two math lessons, the applause almost tore off the teacher's roof. After the applause finally settled, Mei Yi said: "I didn't talk about the content in the textbook today, but mainly talked about the relationship between mathematics and our daily life, and I want to help you build up your interest in mathematics." Alright, let's get out of class. ”

As soon as Mei Yi walked out of the classroom, she was greeted by a beautiful elf girl in a long black dress. She wore a star-shaped hairpin on her head, her hair was casually coiled behind her back, and she had a languid and charming expression. Mei Yi was stunned for a moment, then hugged the elf girl in front of her, and said with a little choked up: "Sister Luo Luoqi......"

Luo Luoqi hugged Mei Yi, her golden eyes were full of soft light, and she said softly: "I asked Mei Luke to help me measure it, my body ratio is a lot worse than 0.618......"

Mei Yi said, "Fuck the fuck/shit math!" ”

Classmate: "......"

Math: "Am I not beautiful?" ”