Dr. Wen flickered online,

The speech is good, versatile, but the show is not selling,

If you are tempted, you will bear the consequences;

If you want to use your kidney, please contact me.

If you are a man, please log in and solve it yourself.

"Dr. Wen, how did you feel when you were preparing for the Jiang Li exam?" Ge Yao'er returned to the topic of graduate school entrance examinations.

Wen Xiaoguang thinks what do I feel about your, what is this girl talking nonsense about? It's not cute at all.

Learning is so much fun, what are you doing?

"Let's get down to business, where do you find it harder? Forget it, you think it's more difficult everywhere. ”

Ge Yao'er: "......"

"An hour is fast, where are you going to start?"

Okay, okay, learn it, you're in a hurry than me, so cold.

Ge Yao'er asked a painful question: "Then let's start with so many models in the planning part, what is the use of those gravity models and distribution models? ”

Drop, Wen Xueba has been launched.

Dr. Wen's expression goes like this: "You can simply understand that the process of expressing real problems in mathematical language through some abstract or simplified means is called building a mathematical model. ”

As soon as the great god makes a move, he knows if there is one.

Ge Yao'er understood, "I see, I've been studying the Beckmann traffic balance model recently, why don't you tell me about it, Dr. Wen." ”

"Well, in fact, it is very simple to build a model, but the difficult thing is that many models are troublesome to solve. The Beckmann traffic equilibrium model was built by Beckmann in 1956 on the first principles concept of Wardrop, but it was not until 20 years later that LB used the Frank-Wolfe algorithm to solve it, and it was only an approximate solution, because the Beckmann model is a convex programming problem with large dimensions, which is difficult to solve. ”

Ge Yao'er shuddered, "Excuse me...... You doctors usually chat like this? Then why do you report to your home first, I, Ge Yao'er, senior. ”

She never felt that senior year was such a weak chicken, until she met someone who called himself Dr. Wen,

A man who made her think that undergraduates were rubbish.

A man who makes her constantly doubt her intelligence.

The ones mentioned above, don't brag and criticize, although I know every word I speak, but in fact, I don't understand when you talk about the second comma,

Convex programming problems with large dimensions?

Do you think if I could understand, I would still cry in the middle of the night every day and beg Dr. Wen to go online?

Wen Xiaoguang continued to be upright: "What I said is not right?"

Ge Yao'er's mentality collapsed, you still ask me if I'm right? I can't even understand punctuation, how do I know if you're right.

She honestly said, "I just don't understand." ”

"I know. ”

Ge Yao'er: ???

"You know you still say?"

Wen Xiaoguang said: "If you listen to them too much, you won't be afraid of them." ”

No, you probably think too much, and the more I listen, the more scared I become.

“...... Has this model been solved?"

"The exact solution has not been found, and later scholars have tried to use neural network algorithms, genetic algorithms, etc., but they can only get approximate solutions. ”

"Stop, stop, wait a while, I shouldn't learn all these algorithms in the future, right?"

Wen Xiaoguang thought for a while, "At least you have to know a genetic algorithm, but that's for the future, and you can master the Frank-Wolfe algorithm for now." ”

“Frank...... Wo what?" Ge Yao'er was so difficult that she couldn't even pronounce her name incoherently.

Wen Xiaoguang's steel feeling filled his body, he was going to scare people, Jade Emperor Guanyin Bodhisattva, this woman is forcing me!

But after touching the three renminbi in his pocket, the last person who was not stopped by the gods was stopped by the beloved Mao Yeye.

Only by printing his old man's portrait can he live, and in these years, the Buddha is not as effective as Mao Yeye.

Then he gave her the expression of the Backmann traffic balance model in detail, and taught her to use the Frank-Wolfe algorithm step by step.

Someone taught him by hand, Ge Yao'er was much more comfortable, and he didn't rush to end it after an hour and a few minutes.

She felt that she was almost receptive, so she said, "Dr. Wen, why don't you come here today, I have to see for myself what you have said."

Wen Xiaoguang said, "It's over? It's been a few minutes, I thought you would have to continue for another hour." ”

Ge Yao'er vomited blood: It turns out that you are such a Dr. Wen!

Fortunately, he didn't really care about a few minutes.

In the end, he still whispered, "Then that's it for today, you can take a good look at it yourself." ”

"Okay," she smiled sweetly, "Dr. Wen has worked hard for you today, you are really patient, it should be early morning in Germany, you must be very tired." ”

Patience is on the face of money.

As for the early hours of the morning,

Wen Xiaoguang looked at the big sun outside, his face was not red and his heart was not beating, and he scratched the tips of his hair, "It's just three o'clock in the morning, it's okay, I can sleep for a few hours, bye." ”

He hung up simply, and Ge Yao'er didn't remember to take back his thoughts before he came.

She was thinking that although Dr. Wen's family conditions are average, he has lofty ambitions, and he must be studying alone to earn living expenses while working, so he only has time on weekends, so he has to earn 300 yuan in the early morning.

I just listened to his tone, and he said that he could sleep for a few hours, and it was very normal.

Ge Yao'er slowly sketched the outline of this person, his temperament is silent, his personality is very resolute, his life is very self-disciplined, he studies super hard, and his handwriting is very good, and he will definitely not be sloppy in life.

Hey, I really want to live like Dr. Wen.

......

......

earned her money in the morning, and at noon, Wen Xiaoguang went to the vegetable market to buy some of the freshest vegetables, got a vinegared shredded potatoes and tofu roasted cabbage, and added a pair of braised chicken legs and chicken wings to Wen Xiaoxiao.

Then I found a thermos box for her to pack and take to the hospital.

The whole world is such a relative, not good to her, good to whom.

Pick up the noon time to go to the nurse's desk, Ding Qiaoren is also there, and when he sees Wen Xiaoguang like the New Year, he must be forced and cheapened from head to toe with his eyes.

She pulled him over and sat down very enthusiastically, "Xiaoguang, you haven't been here for a long time,"

"Because I've been studying hard in school. ”

What he said is the same as the truth, in fact, no one knows whether he studied or not, but he certainly didn't study hard.

Wen Xiaoxiao was also quite surprised, this kid hadn't revealed it to her before, and he even had the heart to send a love lunch.

So he was stupidly happy, and while smiling, he opened the thermos box, happy like a normal person.

Ding Qiaoren was hungry to death, and said with envy: "Compared with Xiaoguang, my stinky brother is far behind, let alone cooking, I usually don't pay attention to touching him, so I shout and cry out in pain, and I am stingy." ”

Wen Xiaoguang was surprised, "I didn't pay attention to touching ...... It still hurts?"

"Yes, he is really very good at calling, and he has to quarrel with me at every trivial, if only he could be as well-behaved as you. ”

“...... I think if it hurts to touch it, then the question is where did you touch him?"

Wen Xiaoxiao almost squirted out while eating rice, and then kicked his stool leg, "Speak well, don't be unruly to Qiaoren." ”

Ding Qiaoren pushed her arm, flashed his eyes and said to Wen Xiaoguang, "It's okay, it's okay." We continue,"

The little eyes looked at him tightly,

"Go on, are you addicted?" Wen Xiaoxiao was also unhappy, and then drove Wen Xiaoguang away, "And you, hurry up and go home and do your homework, if you don't take the test this time, I will remove your big crotch!"

Wen Xiaoguang is very heartbroken, you are eating mine and eating my love lunch, but you treat me like this, is your conscience eaten by a dog?!