Professor Angus and a group of first-year mathematics students hurried to the scene, all with a hint of curiosity, what is the so-called shocked picture, is it done?

moment

A group of people stood in front of the blackboard, and the expression on their faces was nothing but shock.

“...”

“...”

“...”

The students looked at the content on it, it was a blackboard full of more than twenty pieces, not to mention the whole process, just seeing this picture made people feel suffocated, there are really people in this world who are willing to do such a problem.

"One, two, three... Twenty-two!" a student carefully counted the blackboard with the calculation process on it, and finally settled on the number at twenty-two.

"That's not right!"

suddenly

A boy thought of something, hurriedly rushed to a certain blackboard, and shouted: "I remember when I just saw that mysterious person, he seemed to be writing about this blackboard, which is the content of this blackboard, and it has only been seven or eight minutes, just... I've finished writing twenty-two pieces?"

After this student reminded,

Almost everyone realized the seriousness of the problem, and when they did see the mysterious man, he seemed to be writing in the middle, I can't remember exactly which part, but it was in the middle...

"Annie!"

"Play back what you took and let's compare them. A boy shouted.

subsequently

With iron-clad evidence, all the students were almost certain that he was writing on the twelfth blackboard when they saw the mysterious man, and it was only ten minutes before he finished it, so at this rate, it only took twenty minutes from start to finish?

"Is this the devil? Twenty minutes... Ordinary humans can't have that kind of speed, right?"

"Oh my God..."

"God... Did I see a miracle?"

"He's an alien!"

Everyone was shocked by the speed of this mysterious man, which completely violated the limits of human cognition, but... Many people understand that the other party is a human being, not a demon, nor God's help, and it is impossible to be an alien.

Scribbled?

It doesn't look like it's scribbled... The handwriting is very clear, and the whole process of solving the problem is very neat, not like random graffiti.

"Professor?"

"It's... Is that right?" one student asked.

Professor Angus remained silent the whole time, he didn't want to comment too much on the speed of the mysterious man, and when he heard a student ask, he said solemnly: "This question... I don't know for the time being, after all, I am not the one who wrote the question, and we can only know the answer when Professor Mu comes. ”

Actually, Professor Angus has this ability, but it is too time-consuming... It's better to let the questioner check it.

meanwhile

Xiaoman and her cousin are visiting a top luxury clothing store, for Yang Xiaoman, they have always been used to spending big, as long as they like it, even if the price is against the sky, I'm sorry... Take it down too!

It didn't take long for

Xiao Man spent more than 200,000 US dollars, just buying a few pieces of clothing, with an average cost of 50,000 US dollars per piece.

"Xiao Man?"

"Are you usually so lascivious?" Cousin Xiaoman witnessed her cousin's ability to spend money, and couldn't accept such a character for a while, in her impression, her cousin shouldn't spend so much money, she should be a fairy, the kind that doesn't eat fireworks in the world.

But...

After the fairy fell into the world, she became vulgar, and she knew how to spend money, spend money, spend money... And she spends money more than the average person.

"That's right!"

"What's wrong?" Yang Xiaoman sat on a chair in a roadside restaurant, took a sip of a drink that inexplicably cost three hundred dollars, and said indifferently: "The main thing is that my father makes money at a faster rate, far exceeding the speed at which I spend money, if I don't spend it hard, I won't be able to spend it in the future." ”

Oops...

This idea is fresh and refined!

My cousin was quite helpless about Xiao Man, but she attributed the culprit to Xu Mang, and this guy must have brought her cousin badly.

But...

Uncle is indeed very good at making money, according to the current speed of Xiaoman's spending, it is far less than his uncle's speed of making money.

"Where's your husband?" the cousin asked curiously, drinking the same $300 drink, "Your husband spends money at the same rate as you?"

"Nope. ”

The most expensive thing he'd ever bought was a Porsche garbage truck, and it didn't even have air conditioning. Yang Xiaoman tilted his head and said, "It seems... At that time, he spent more than 4 million, which was the only time he spent a lot of money, and the rest were all petty fights, buying motorcycles and the like, and it didn't cost a few dollars. ”

"That's good. The cousin nodded and said seriously, "Although it seems to be a little... But on the whole, he is a homely husband. ”

Homely...

Ghost home.

Yang Xiaoman has 10,000 reasons in his heart to refuse to admit that Xu Mang is a homely type, but in front of his cousin, he still needs to pretend to be very happy, otherwise he will be deflated by her.

"Xiao Man..."

"Your husband seems to be very talented in mathematics, right?" said the cousin, a question that had nothing to do with it.

"Huh?"

"Uh... How to say it. Yang Xiaoman said seriously: "At present, it seems that except for some problems of the century, others should not be a problem, but this guy doesn't seem to like to study mathematics very much, which may be related to his involvement in physics, not that physics and mathematics are inherently hostile." ”

This...

I don't like to study mathematics, but I have such a high talent in the field of mathematics...

It's jealousy, envy and hatred!

Cousin Xiaoman is quite speechless, there is no need to guess the question about herself, she will definitely be solved by Xu Mang, there is no suspense...

Then

My cousin received a phone call from a colleague from school, Professor Angus.

"Professor Mu!"

"The questions you gave to the students were solved. Professor Angus said.

Unraveled...

That's right!

Unlocked!

Cousin Xiaoman was about to speak, and suddenly reacted, how long has it been? At most, more than half an hour, just... It's not that difficult, but the point is that the process of solving the problem is quite complicated.

Even if you are talented, it will take an hour and a half, right?

"Professor Angus!"

"Do you know how much time he spends?" asked Cousin Xiaoman.

"Twenty minutes!"

“...”

"I'm sorry, Professor Angus. Cousin Xiaoman was stunned for a moment, and hurriedly asked, "Can you tell me again, I didn't hear it clearly just now." ”

"Twenty minutes!"

"I solved the problem in twenty minutes, I don't know the correctness for the time being, I hope you can take a look. Professor Angus said.

This...

It's unimaginable!

How is it possible to solve it all in 20 minutes!

"Good!"

Hang up the phone,

Xiao Man's cousin was stunned in place, and at this time she looked up at her cousin and said solemnly: "Xiao Man... Give your husband a call and ask him where he's running now. ”

"Huh?"

"He... Isn't he solving the problem?" asked Yang Xiaoman curiously.

"Solve the problem..."Cousin Xiaoman looked at the time and said helplessly: "Fifteen minutes ago, your husband solved my problem, and now... People don't know where they're going, so you'd better give him a call, and if you get lost, it's over. ”

This...

Forget it

I'm used to it, old lady.

Yang Xiaoman didn't react much, but she was worried about the safety of the columbian students, according to her fiancé's urine, he must have sneaked to the place where someone else was in class, and it was also the most crowded classroom, so it was estimated that he was sitting in the corner now, looking for an opportunity.

I made a phone call, but I was hung up by the other party just after I got through.

At this point,

Yang Xiaoman has collapsed.

"What's wrong?"

"Your husband won't answer your call?" asked my cousin.

"Uh..."

"Sister... Let's leave that idiot alone, what do you want to do now?" asked Xiao Man.

"Go back!"

"I'm going to see Xu Mang's problem-solving process, whether it's right or not. Cousin Xiaoman said.

...

Long

Xiao Man and her cousin returned to Columbia University together, and then saw that question, Xiao Man originally thought it was just a few simple processes, but he saw the contents of the twenty-two blackboards, but he was not shocked.

How to say it... It's a basic operation!

Domestic students and teachers have become accustomed to it, and it's time to shock foreigners and not kill them!

"This..."

"This was done in half an hour?" the cousin couldn't accept the facts in front of her for a while, just kidding... The content of the twenty-two blackboards only takes about twenty minutes, is he God?

"Professor Angus!"

"It's... Are you sure this was done in twenty minutes?" asked Cousin Xiao Man, with a look of horror.

"I don't know. ”

"But when the students met the problem solver on the way to class, one of the students took a video, and based on this video, we calculated the specific time, which was about 20 minutes. Professor Angus said.

Cousin Xiaoman fully trusts his colleagues, and he will not lie to people in this matter.

Since it's so fast,

Then there must be a mistake in the content!

After all, speed is inversely proportional to mass, and the faster the speed, the worse the quality.

The cousin began to carefully review Xu Mang's problem-solving process, although the surrounding area was full of people, but it was very quiet at this time, and they also wanted to know whether this process was right, and the students also tried to check the problem-solving process.

Thinking about it later... Since Professor Mu will come, wouldn't it be better to sit back and wait for the result?

Five minutes

Ten minutes,

Twenty minutes...

ultimately

Xiao Man's cousin finished reviewing Xu Mang's problem-solving process, she has been completely conquered by beautiful mathematics, in her eyes, there is no more beautiful number in the world than this, such a concise process, the first time I saw it.

Even more perfect than your own answer!

"Professor Mu?"

"It's... Is that right?" asked one student curiously.

“...”

"Although I don't want to admit it... But the solution process is even more perfect than my answer!" Cousin Xiaoman sighed and said helplessly: "It's amazing..."

Words fall,

caused an uproar in the audience.

Everybody is looking for an answer,

Who is this mysterious guy who defies the sky?

"You must be guessing who this man is, right?" Cousin Xiao Man said with a smile on her face, "I already know who he is." ”

“？？？”

“？？？”

“？？？”

Hearing Professor Mu's words, the people present looked at her intently.

answer

Everyone is desperate for answers.

"He's Xu Mang!"

"A theoretical physics professor from China!"

...

Columbia,

Theoretical physics classrooms.

"In the face of multi-particle systems, we generally use an approximation method to simplify the physical problem under an appropriate model. "A theoretical physics professor was lecturing to a first-year student, but a big bad wolf was mixed in with the small sheep.

......