Chapter 247 What Is an Imaginary Number

The voice of the "Washington Times" was not mainstream, but it made a lot of noise on the Internet for a while.

What could be more topical than "racism"?

It can be seen that the funder behind it has spent a lot of money, and discussions can be heard everywhere on Twitter and Facebook.

The Chinese students and the overseas Chinese group naturally stand on Lu Zhou's side on this issue, but the black group and the white left group are obviously filled with righteous indignation.

However, Lu Zhou didn't have much trouble in his heart.

One is that he doesn’t use Twitter and Facebook very often until now, and he is out of sight and out of mind. Second, he has his own affairs to be busy every day, and he has no time to worry about foreign netizens’ evaluation of him.

Of course, even so, as he said, it would be too unlike him for the other party to throw the gauntlet on his desk and not respond.

Soon, it was the day of the report meeting.

There are still a few hours before the start of the report meeting, and Lu Zhou, who has arrived at Palmer Square, intends to eat something first.

It must be too late to go to the Ivy Club for dinner. After all, the club is on Prospect Avenue, and his current location is about half a Princeton away from there.

I randomly found a Texas burger near Palmer Square. Lu Zhou was about to open the door and walk in when he heard the sound of arguing inside.

I saw a black brother standing in front of the counter and speaking in a voice full of superiority.

"The price of the chicken leg burger set is $6, the price of the Texas roast beef burger is $7, and the single items of the two sets are $3.50 and $4 respectively. And I noticed that a Coke on your menu is $1. "

"Although you didn't set a price for the bonus Texas BBQ steak, I got two values ​​through the simultaneous equations. That is, your Texas barbecue steak is both $1.50 and $2. So, can you explain , is there a reason for the imaginary number solution appearing in your menu?"

The Texan standing behind the counter plucked his ear with his little finger and said impatiently, "So?"

"So it doesn't make sense." Professor Enoch said confidently. "In Nigeria, equations are something that anyone who has gone to high school can do. You sell hamburgers in Princeton, so you can't even do that." ?”

The Texas Redneck behind the counter was obviously too lazy to chat with him, and urged: "No matter what imaginary number is or is not, if you want to buy it, then please pay, if you don't buy it, please stand aside."

Although he wanted to use the word roll, but after all it was still opening hours, he still had to restrain his temper.

Looking at this rude Texan, Innotek couldn't help showing a sense of superiority in his eyes.

This sense of superiority is probably similar to when he was standing in Ekiti Federal University.

A group of black boys who don't know anything are sitting in his classroom, and he is omniscient and omnipotent, and all the satisfaction and joy he wants can be found from those who are lower or weaker than him.

This feeling is simply like poison.

However, Professor Enoch obviously didn't realize that the situation here was probably different from that in Nigeria, and he didn't even notice the mocking gaze from the side.

The Texans standing in front of him were not some black guy who was hoping to learn something from him and then change his fate to flee the African continent, and he was not at all interested in his teachings.

Just when the Texan rolled up his sleeves and winked at the waiter next to him, a clear but quiet voice came from the direction of the store entrance.

"Equations are really not a profound thing. You can learn it in any high school in Huaguo... Bring me a bacon sandwich and coffee. I have a report later. Please hurry up." A black brother, Lu Zhou put the money on the table.

Seeing the dollar, the Texan finally forced a smile on his face.

"immediately."

Hearing the report, Professor Enoch raised his eyebrows, as if he had guessed the identity of the Chinese man, and the corners of his mouth curved with interest.

Seeing that he was not forgiving, he asked.

"Then how do you explain the price on the package?"

"It's very simple. We have to formulate an equation to calculate this obvious thing. In this case, we usually consider adding a coefficient in front of the unknown. You can understand it as the so-called preferential margin," Lu Zhou shrugged and continued, "Of course, I am also curious about how you did it by adding curly brackets to two equations that are completely incompatible, and self-righteously using a wrong question to calculate the imaginary solution. Didn't your students tell you? ?”

Although the students sitting next to them didn't join in, many of them had already started to laugh.

In fact, they wanted to laugh a long time ago, because they didn’t think it was a big deal to watch the excitement. The reason why they kept silent was that they just wanted to see the shopkeeper demonstrate to this annoying ghost, so that he could see how Texas Redneck solved the equation.

In mathematics, an imaginary number is a number of the form a+b*i, where a and b are real numbers, and b≠0, i=-1. where a is the real part and b is the imaginary part. Afraid to speak 100% of Huaguo high school students will know it, but 99% of high schools will definitely teach it.

In human terms, a number whose square is negative or whose root sign is negative is a pure imaginary number. If there is a real number next to it, it is an imaginary number.

In fact, as long as you have completed your high school studies earnestly, this is really not something profound, although there is nothing shameful about it.

"He's right, that's what... the preferential ratio, do I still need you to take care of me selling my own stuff?" The Texan waved his hands impatiently, put down his rolled up sleeves, and tapped the table with his index finger , "If you don't want to buy, get out of the way quickly, you are blocking the customers behind."

The air is full of joy.

Enoch's face turned red, and he began to say some difficult words: "A linear equation, why can't it be counted as an imaginary number? How do you know that in the Abelian group, homomorphism and conjugate class, there is no such Imaginary numbers..."

Hearing this, Lu Zhou couldn't help helping his forehead.

Although he really wanted to complain about whether he knew the true meaning of these proper nouns, the problem was obviously not here.

The real downside is...

"Is there even a need to ask, because a linear equation doesn't need a root sign!"

...

For Lu Zhou, what happened in the burger restaurant was just a small episode.

Although I am very curious about who the black brother learned mathematics from, but in the end his black face completely swelled red, and he rushed out of the door amidst the laughter of a group of people, so this question is still unknown.

Putting this matter aside, Lu Zhou calmly came to the Princeton Hotel opposite Palmer Square after finishing his lunch.

Laerte stood at the door and greeted every invited guest with a smile, but when he saw Lu Zhou, he was obviously stunned for a while, but soon put on a smiling face.

It's just that the smile has a bit of irony in it.

"Welcome, Chinese mathematician from Princeton, I didn't expect you to come here."

Lu Zhou glanced at the almost full lecture hall, smiled and said, "I probably don't come here uninvited."

"You can still laugh?" Laert raised his lips and lowered his voice, "I hope that after an hour, you will still be as confident as you are now."

Lu Zhou smiled, and suddenly said, "Can I ask a question?"

Lart: "What's the problem?"

Lu Zhou asked seriously: "Who gave you such a bad idea?"

Laerte's expression stagnated, but there was no obvious change. He still had that professional smile: "What bad idea? What idea? Sorry, I don't quite understand what you're talking about."

Lu Zhou smiled and said softly: "It's okay, forget it, pretend I didn't ask."

Of course he didn't expect to be able to ask anything with just one sentence.

However, human subconsciousness is uncontrollable, especially when external factors guide it.

Laerte didn't waste time with him, or he didn't plan to waste a second on him, and turned around to greet the legal persons and representatives of black rights protection organizations, as well as the funders who provided funds for these organizations, and relevant congressmen .

Most of the people sitting in the meeting probably don't understand mathematics, and they don't even intend to listen to a scholar's defense of his research results. Just like when the "New Yorker" misrepresented Qiu Chengtong's achievements and added a photo that vilified Asians, even if it was Hamilton who stood up and clarified, so what?

This is a place where populism (also known as populism) is rampant, and it can be seen in many places.

The reason why they are sitting here is purely because a Nigerian brother has been treated unfairly by American academic circles, purely because political correctness requires them to put off important meetings and put on a posture of sitting here.

but……

What does this have to do with Lu Zhou?

Academic exchanges cannot be completed with the knowledge of elementary mathematics. No matter how much you discuss with Professor Enoch, for those sitting in the audience, it is like playing the piano with a cow.

But some popular science things, even common sense things, can be done even in easy-to-understand language.

Lu Zhou gently adjusted the tie on his chest.

For him, this is really not a difficult task.