Chapter 246: What is an imaginary number?

The voice of the Washington Times is not mainstream, but it has caused a stir on the Internet for a while. ◢ with * dream ◢ small *.lā

What could be more topical than "racism"?

It can be seen that the financier behind it has made a bloody investment, and the sound of discussion can be seen everywhere on Twitter and Facebook.

The Chinese students and overseas Chinese groups naturally took a clear-cut stand on Lu Zhou's side on this issue, but the black and white left groups were obviously filled with righteous indignation.

However, Lu Zhou didn't have too many waves in his heart.

The first is that he doesn't use Twitter and Facebook very often until now, out of sight and out of mind, and secondly, he has his own things to be busy every day, and he has no time to worry about what foreign netizens say about him.

Of course, even so, as he said, the other side threw the war book on his desk, and it would be too different from him if he didn't respond.

Soon, it was the day of the briefing.

A few hours before the start of the briefing, Lu Zhou, who had already arrived at Palmer Square, planned to eat something first.

It's definitely too late to go to the Ivy League club for dinner, after all, the club is on Prospect Avenue, and now his current location is about half a Princeton away from there.

Finding a random Texas burger near Palmer Square, Lu Zhou was about to push the door and walk in, when he heard the sound of argument inside.

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

"The chicken thigh burger set costs $7, the Texas Roast Beef Burger costs $7, and the two set items are $3.5 and $4 respectively. And I noticed that a glass of Coke on your menu is in dollars. ”

"You didn't have a price for the included Texas barbecue, but I used the simultaneous equations and got two values. That is, your Texas kebab is both $.5 and $2. So, can you explain why there is an imaginary solution in your menu? ”

The Texan, who was standing behind the counter, plucked his ears with his little thumb and said impatiently, "So what? ”

"So it doesn't make sense." "In Nigeria, equations are something that anyone who has ever been to high school does, and you sell burgers in Princeton, so you don't know that, do you?" ”

The Texas red neck behind the counter was obviously too lazy to talk to him, and urged: "No matter what imaginary number is, 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, after all, it was still in the opening time, and he still had to restrain his temper.

Looking at this rude Texan, Inote's eyes couldn't help but have a hint of superiority.

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

A bunch of black lads who don't know anything sit in his classroom, and the all-knowing and all-powerful is God, and all the satisfaction and joy he wants can be found in those who are lower or weaker than him.

It's like poison.

However, Professor Enoch apparently did not realize that the situation here was probably different from that of Nigeria, and he did not even notice the playful gaze thrown from the side.

The Texans standing in front of him were not the black lads who were counting on learning something from him and then fleeing the continent with a change of fate, nor were they interested in his doctrine.

Just as the Texans rolled up his sleeves and glanced at the waiter next to him, a clear but not loud voice floated from the direction of the store's entrance.

"Equations are really not something advanced, and you can learn them in any high school in China...... Bring me a bacon sandwich and coffee, I'll have a debriefing in a moment, so I'll be a little quicker. Passing over the black brother, Lu Zhou put the money on the table.

Seeing the dollar, the Texans finally squeezed out a smile on their faces.

"Right now."

Hearing the report, Professor Enoch's eyebrows raised, as if he had guessed the identity of this Chinese, and the corners of his mouth hooked up with interest.

I saw that he didn't give up and asked.

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

"It's very simple, we have to make an equation to calculate such an obvious thing, in this case we generally consider adding a coefficient in front of the unknown, you can understand it as the so-called preferential range," Lu Zhou shrugged his shoulders and continued, "Of course, adding a parenthesis to two equations that are not conjugable at all, and self-righteously using one to the wrong problem to calculate the solution of an imaginary number, I am also curious how you did it, didn't your student tell you?" ”

Although the students sitting next to the meal did not join in, many of them had already begun to snicker.

In fact, they have long wanted to laugh when they see the excitement, and the reason why they have been holding back their silence is just to see the shopkeeper demonstrate to this nasty ghost, so that he can see how Texas Red Neck solves equations.

In mathematics, an imaginary number is a number of the form a+b*i, where a and b are real numbers, and b≠0 and i2=-. where A is the real part and B is the imaginary part. 00% of Chinese high school students will not dare to speak, but 99% of high schools will definitely teach.

To put it bluntly, a number that is negative in square or negative in the root number is an imaginary number.

In fact, as long as you have completed the nine-year compulsory education seriously, this is really nothing esoteric, although it will not be and there is no shame.

"He's right, that's what...... Preferential ratio, do I still need you to sell my own things? The Texans waved his hand impatiently, put down the sleeves that had been rolled up, and tapped his index finger on the table, "If you don't want to buy it, hurry up and give way, you are blocking the guests behind." ”

The air was filled with a sense of joy.

Enoch's face turned red, and he began to say some difficult words: "An equation, on what basis, can not be counted as imaginary numbers?" How do you know that in abelian groups, homomorphisms, and conjugated classes, there are no such imaginary numbers......"

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

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

The real slots are......

"Do you still need to ask, because you don't need to open a root number for a single equation!"

……

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

Although I was curious about who the black brother had studied math with, in the end, his black face turned completely red and he burst out of the door amid the laughter of a crowd of people, so the question was unknown.

Putting this matter aside, Lu Zhou settled his lunch and calmly arrived at the Princeton Hotel across the street from Palmer Square.

Larte stood at the door, smiling at every guest who was invited, but when he saw Lu Zhou, he was obviously stunned, but he quickly changed to a smiling face.

It's just that the smile is somewhat ironic in it.

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

Lu Zhou glanced at the almost full lecture hall, smiled and said, "I'm probably not uninvited." ”

"You can still laugh?" The corners of Ralter's mouth curled, and he 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 with a serious face, "Who gave you the bad idea?" ”

Lart's expression froze, but there was no obvious change, and it was still the same professional smile: "What bad idea?" What's the idea? Sorry, I don't quite understand what you're talking about. ”

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

Of course, he didn't expect to ask something with a single sentence.

However, the human subconscious is uncontrollable, especially when it is guided by external factors.

Ratt didn't waste time with him, or didn't intend to waste a second on him, and turned to call the legal persons and representatives of the black rights protection organizations, as well as the funders who funded these organizations, and the congressmen with interests.

Most of the people sitting in the room probably didn't understand mathematics and didn't even intend to listen to a scholar defend their research. Just like when The New Yorker distorted the results of Yau's report and accompanied it with a photo that scandalized Asians, even if it was Hamilton who came forward to clarify, what could it do?

It's 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 the American academic community, and purely because political correctness requires them to put down important meetings and assume the posture of sitting here.

But......

What does this have to do with Lu Zhou?

Academic communication cannot be done with the knowledge of elementary mathematics, and no matter how much discussion with Professor Enoch, for those sitting in the audience, it is also playing the piano to the cow.

But some popular science things, even common sense things, can be done even in plain language.

Lu Zhou gently straightened the tie on his chest.

It's really not that hard for him.