At this moment,

Lin Fan was stunned, he didn't know if it was a coincidence, in short... Big trouble!

The refrigerator-faced woman also noticed the abnormality and strode towards Lin Fan.

Seeing the unreasonable refrigerator-faced woman getting closer and closer, Lin Fan instinctively shrank his head, although all this has become a foregone conclusion, but people... If you have a dream, you have the motivation to move forward, maybe this is a misunderstanding?

The refrigerator-faced woman sat directly opposite Lin Fan, and said expressionlessly, "May I ask if you are Lin Fan?"

"Huh?"

"I... This..."Lin Fan said cautiously: "Girl... You may be mistaken for someone, my name is... Lin Jinfan, I'm not called Lin Fan. ”

The refrigerator-faced woman glanced at Lin Fan and said indifferently: "My name is Liu Yun'er, let's go through a procedure next, order, eat, AA checkout, leave, let's start the process now." ”

At this moment, Lin Fan's scalp is numb, what kind of thing has he encountered? It's like a robot with no feelings.

After that, Lin Fan ordered a steak, and the fridge-faced woman ordered a spaghetti bolognese, and the two ate their lunches in silence, several times Lin Fan wanted to ask each other about the basic conditions, but in the end they all held back, this face is terrible!

In fact...

Seriously,

Liu Yun'er is very beautiful, but unfortunately it is too cold, so cold that she can't get close.

Alas?

Her surname is Liu, and the curator is also surnamed Liu?

Then

Liu Yun'er took out a notepad and a pen from her bag, and then put them on the side, while she took a small bite of spaghetti bolognese and didn't know what was written while holding the pen.

Lin Fan was quite curious, cautiously stretched out his head, and glanced at it, feeling that this was a problem about scattering in quantum mechanics.

In fact

This problem is very simple, as a top genius who has won the Nobel Prize in physics in the past, you can understand it at a glance with an afterglow, and you can directly use the scattering amplitude calculation formula, or use the Gaussian integral formula, you can get the same micro-dispersed emission cross-section.

But what made Lin Fan curious... What exactly does a refrigerator-faced woman do, and why is there a scattering problem in computational quantum mechanics?

It seems that the education is not low!

In less than five minutes,

Liu Yun'er calculated the final value, and when she was about to close the notepad, she found that the man in front of her had been staring at her notebook, his brows were in a locked state, and he seemed to be thinking about something.

"You like... Wrong!" Lin Fan said coldly.

“...”

"What did you say?" Liu Yun'er was stunned for a moment, the expression on her face was slightly surprised, but she quickly returned to normal and asked, "You said I was wrong?"

"Hmm!"

"You seem to have miscalculated. Lin Fan smiled bitterly: "You check again?"

Liu Yun'er looked at Lin Fan, looked at the man carefully, and asked solemnly, "Do you know what I'm doing?"

This...

This is not the study of the atomic bomb, it is the same as the real thing.

"Isn't it a problem of using an adiabatic approximation to calculate the scattering cross section of a particle in V=Ae^(-r^2/a^2)? Lin Fan said angrily: "A particle with mass m, moving in the repulsion potential V=Ae^(-r^2/a^2), uses adiabatic approximation to find the cross-section of micro-dispersed emission, and determines a multiplicative constant. ”

Hearing this,

Liu Yun'er was stunned for a few seconds, and when she reacted, she found that the man in front of her was cutting her own steak, and at this moment, Liu Yun'er wondered if she had hallucinated just now.

Reopened his notebook and looked at the calculation process on it again, this time Liu Yun'er was extraordinarily careful, and the result... It's really like what the man in front of me said, in a certain calculation process, there was a calculation error, which led to a deviation in the final answer.

"What do you do?" asked Liu Yun'er seriously.

"Me?"

"Working as a librarian in a certain library is a temporary worker. Lin Fan said indifferently: "The salary is not very high, about 3,000 yuan after deducting social security, and I don't have a car or a house, I currently rent a small apartment outside, about 1,002 a month, in short... The two of us are not suitable. ”

Liu Yun'er frowned and asked seriously, "I'm not asking this... I'm asking why you know about scattering. ”

Lin Fan put down his knife and fork, picked up the tissue on the side, gently wiped the corners of his mouth, and said casually: "It's not a difficult question, how can there be so many why... It's not me who brags, you just used the scattering amplitude calculation formula, in fact, there is another solution. ”

"Gaussian integral formula. ”

"Is this what you want to say?" Liu Yun'er said expressionlessly, "The calculation process is a bit complicated. ”

“...”

"Complicated?"

"It's not complicated. Lin Fan smiled and said, "Paper and pen!"

Liu Yun'er looked at Lin Fan, and then handed his notebook and pen to him.

After receiving the pen and paper,

Lin Fan started his own calculation process, and at the same time set his phone's calculator program to scientific calculator mode, just like that... started his smooth calculation process, and this scene shocked Liu Yun'er quite a lot.

In less than three minutes,

Lin Fan used the Gaussian integral formula to obtain the same slightly dispersed cross-section as Liu Yun'er, and the time it took him was even shorter.

"Give!"

"I went to work. ”

Returning the paper and pen to Liu Yun'er, Lin Fan left in a hurry, and by the time Liu Yun'er came back to his senses, he had already disappeared.

He...

Librarianship?

Or temporary?

Liu Yun'er fell into confusion, Lin Fan easily solved the scattering problem, which made Liu Yun'er's worldview collapse a little, when a temporary worker in the library actually solved the scattering problem in quantum mechanics without much effort.

However, Liu Yun'er was not in a hurry to figure out Lin Fan, anyway, with his number in hand, he could always find him.

afterwards

Liu Yun'er was about to leave the restaurant, but just as she got up and took a few steps away from the table, the waiter behind her suddenly stopped her.

"Miss!"

"You haven't paid yet. ”

Liu Yun'er was stunned for a moment, she thought that Lin Fan would pay the money, but as a result... It's that she's thinking too much.

When I got to the cash register,

Liu Yun'er opened the payment code on WeChat, and she remembered that she only ordered a spaghetti bolognese, which was about seventy-eight yuan, but... It shows that 200 yuan has been deducted.

"I only ordered a spaghetti bolognese, probably less than eighty, why did you deduct me from two hundred?" asked Liu Yun'er expressionlessly.

"That's the lady. ”

"Your companion, the man sitting across from you, didn't pay. ”

Suddenly

Liu Yun'er's face darkened, the guy named Lin Fan was not only a hit-and-run, but also suspected of fraud!

......