The quarrel between the small couples is a typical fight, a willingness to fight.The two people quarreled for a while and released the hormones that had accumulated in the body for many days, so that the stomach was empty, and the smell of chicken soup in the kitchen became more and more intense.

"You eat chicken legs, I eat wings."

Du Xiaodi slept, shook his spirits, and performed the duties of the mistress.She took the stew of chickens out of the kitchen, put them on the small table in the yard, and prepared the meal, and then sat down face with Feng Xiaochen and began to enjoy a rich dinner.

For a long time, Du Xiaodi did not have the shy feeling of the past in front of Feng Xiaochen, and replaced it with a natural sense of closeness.According to the standards of 1985, Feng Xiaochen is a very postmodern style of man, young and more gold, wind and yin, know how to care for people, especially good at taking care of women, and do not smoke and do not drink, in the current young man is extremely rare.Du Xiaodi's old female companion and now graduate students who do not call Du Xiaodi have eyes and are lucky enough to catch such a golden turtle son-in-law.

“What were you writing?”

gnawing at the wings of the fragrant chicken, Du Xiaodi casually asked Feng Xiaochen.She remembered that when she had just fallen asleep, she saw Feng Xiaochen writing in the yard, and seemed to write a lot of paper, and asked curiously.

"I'm writing to you."Feng Xiaochen replied.

“Writing the program?”Du Xiaodi felt a little surprised, she had thought that Feng Xiaochen was writing his own things, maybe even writing the homework of the Academy of Social Sciences, who had thought that he was actually helping her write programs.

"What program is written, is it my algorithmic program for welding the thermal process?"Du Xiaodi asked.

“Yes.”

“Do you even know this?”

"This mechanical thing is related."Feng Xiaochen said with a slight degree of composure.People who learn mechanics are not enough to learn just what crankshaft drive, materials science is also one of the important courses of mechanical majors, and even more important courses than mechanical principles.Du Xiaodi's research of welding heat process, Feng Xiaochen in the past also touched some, just now Du Xiaodi sleep, Feng Xiaochen from her room to find the information rough again, the understanding of this problem has deepened a lot, so also have the ability to help her design the algorithm.

“You’re not a professional mechanic.Besides, your knowledge was not learned with your grandfather, when Grandpa died, there was no computer, how can you understand the algorithm of numerical simulation?"Dudley questioned.When she said that Feng Xiaochen's elders, she was used to omiting the word "you", "your grandfather" became "grandfather", and the taste of it was very different.

Du Xiaodi certainly knows that Feng Xiaochen's technical skills in machinery are very good, but there should be a limit.Numerical simulation technology, listen to Cai Xingquan said in foreign countries is just beginning to heat up, before the application is not extensive, and even Cai Xingquan and other technical university professors are also a little understanding of this, basically according to the gourd painting, and Du Xiaodi their students are more outrageous.Feng Xiaochen in the past, Du Xiaodi does not know, but at least in the past more than a year, Du Xiaodi did not see how much energy Feng Xiaochen spent to read professional books in engineering, why would he understand these things?

"You have to admit that there are geniuses in this world."Feng Xiaochen also knew that his gold fingers were not easy to explain, and Du Xiaodi was his pillow-side man-ureth, well, in fact, the pillow-side people of the future, it was not easy to hide these things from her.Since you can't hide it, you can't say anything about crossing things, it's only pushing to genius.

"Let's see what the genius does."

Du Xiaodi said, taking the rag and rubbing the oil on his hand, took what Feng Xiaochen had just written from the side, and looked over in his hand.Feng Xiaochen had promised to help her contact the computer machine, so that she no longer had to ponder the effort to solve those equations that were actually completely unsolved, which only made her a little easier, the problem of the simulation algorithm, is still a piece of her heart disease.Now I heard that Feng Xiaochen even the algorithm is helping her write, and she naturally can't wait to see it.

"What does this equation mean? ... Teacher Tsai told us numerical simulation, not so, and there is no such equation."

Du Xiaodi looked at the formula of Feng Xiaochen's column for a while, and it was a little embarrassed.Algorithms are actually a set of formulas, and then turn formulas into computer programs, allowing computers to operate.Feng Xiaochen to give Du Xiaodi design algorithm, naturally to list the formula, and some numerical simulation of the algorithm, he still studied in the previous life, put on for many years without use, now to take out, have to remember it.What Du Xiaodi now sees is the algorithm written by Feng Xiaochen, and compared with the algorithm that Cai Xingquan taught her, the difference is not between the world.

Feng Xiaochen was speechless, he reminded: "I said, girl, can we finish the meal and then look."The chicken stew to make up your body, you eat a few bites."

"Well, I'm almost full, and I'll just drink some soup later..." Du Xiaodi said perfunctorily, her eyes for a moment did not leave the few pieces of paper written by Feng Xiaochen, and also took the pen more and more vigorously, and made a brief derivation on a blank piece of paper to help herself better understand Feng Xiaochen's ideas.

If people can become an electric welding technician at a young age, there is indeed something extraordinary, Feng Xiaochen said in his heart.

In one contact at a time, Feng Xiaochen had already felt Du Xiaodi's persistent spirit.It is said that among the 21 welders sent to Japan by the Ministry of Machinery, the most difficult is Du Xiaodi, and the best academic performance is also her.Du Xiaodi was a child because of family reasons to delay school, otherwise with her hard work spirit, coupled with smart talent, this will probably have been the northern doctor.

"Come on, let me tell you."Feng Xiaochen conceded, he threw down the chicken bone that had gnaw the meat, also wiped his hands with a rag, and then moved the stool to the side of Du Xiaodi, and began to explain it to her:

"We need to first establish an unbalanced and usable Markov chain based on the material properties of the workpiece, and for a vector of the Markov chain, there is such a corner condition for a graph... We assume that the next state from the next state starting from x is possible to take any of its adjacent vectors, etc., and the probability of the next state being y can be expressed in this way..."

Feng Xiaochen has already derived the formula, and there is no obstacle to it.Du Xiaodi this year more than a year with Cai Xingquan around the crawling, but also a certain foundation, Feng Xiaochen said things, she can roughly understand a seven or eight minutes look.When she encountered a place she did not understand, she was not polite, so that Feng Xiaochen explained to her repeatedly until she understood.

Feng Xiaochen actually also intentionally wanted to see Du Xiaodi's ability, said in his heart, although Du Xiaodi recommended to Cai Xingquan, but he only knew that Du Xiaodi welding level is superb, involving physics, mathematics and other theoretical research ability, he has no bottom.

In the process of telling, he has been observing Du Xiaodi's reaction, although there are many places Du Xiaodi still do not understand, but only those who understand, is enough to make Feng Xiaochen feel shocked.

More than a year ago, Du Xiaodi was just a junior high school education of electric welders, and more than a year later today, Du Xiaodi can actually understand the Markov chain, can understand the concept of secondary optimization, what kind of miracle.

“Understood?”

After explaining the algorithm all, Feng Xiaochen looked at Du Xiaodi and asked.

Du Xiaodi's face has some excitement, she said with a smile: "It is not particularly clear, but the key link I am roughly clear, and when I look at the algorithm I write in the evening, it should be no problem."I think you're talking about this algorithm, better than what Teacher Tsai taught us, and his methods are very troublesome, and the number of iterations is much more than you."

"Of course, Feng's chief product will be the best."Feng Xiaochen also blew up the cowhide, of course, he certainly has the bottom of the bragging, he said that these algorithms, are ahead of this era, and can be used to the new century, can see its vitality.

“Where did you learn all these things from?Why haven’t I seen this book?”Du Xiaodi asked.

Feng Xiaochen said, “Of course I thought out for myself.As you said, in the era when Grandpa died, there were very few domestic computers, and Grandpa himself did not understand numerical simulation.However, he taught me advanced mathematics, I think, when my brother also brushed a whole Gildovic, to do an ordinary mathematical analysis, is not like playing with?"

“Blow and blow again!”Du Xiaodi said with his mouth, she still likes to see Feng Xiaochen bragging, this is a kind of cool, compared to hanging more than 20 pounds of gold chain around the neck dressed as a cool "social person", Feng Xiaochen this belly of poetry book cool more intoxicating.

"You digest this algorithm, understand these, you can at least be more than 10 years ahead of your peers."Feng Xiaochen.

Du Xiaodi said, “You are also blowing too outrageous, these things must be from where you look.”However, I believe that Teacher Cai must have not seen it, and our other teachers and brothers and sisters have not seen it.I'll go to Teacher Cai tomorrow and say he'll be interested."

“But if he asks you where these methods come from, how do you answer?”Feng Xiaochen asked worriedly.

Du Xiaodi smiled, “I said you invented it, didn’t you just say that?”

"Well, well, it's all an illusion."Feng Xiaochen said, "Well, if old Cai asked, you said that I saw it in an unknown book, and now the book can't be found, I don't know if it's in the information room of the Commission or in the data room of the Coal Institute."Either way, it’s never been possible to find it.”