MTL - The Science Fiction World of Xueba-Chapter 439 Shocking Qi Aimin

Half an hour later, Mu Dong came downstairs and saw Qi Aimin riding on a 28 bicycle.

"Lao Qi, here ..."

Mu Dong waved his hand.

Qi Aimin looks more than forty years old, with the programmer's usual tradition in his head. He has become the Mediterranean, with a pair of black-rimmed glasses, which looks a bit old-fashioned.

"Donglai, what about the child you said?"

"Still busy in the room."

"Take me to see!"

Mu Dong nodded, took Qi Aimin straight upstairs, and soon came to Pang Xuelin's room.

Pang Xuelin was still ticking tickingly, while Mu Qingqing was pestering his chin, a pair of beautiful eyes, staring at Pang Xuelin without blinking.

Mu Donglai was a little embarrassed, and he coughed quickly.

Mu Qingqing came back to God and found out that his father and another strange man came over.

Mu Dong said, "Qing Qing, this is your uncle Qi."

"Uncle Qi!"

Mu Qingqing quickly stood up and said hello to Qi Aimin.

"Qing Qing, hello, when I saw you last time, I was still a little girl with a runny nose. I didn't expect to grow into a pretty big girl in the blink of an eye."

Mu Qingqing's pretty face couldn't help but a hint of crimson, and smiled: "Uncle Qi, how can you say that to others?"

At this moment, Pang Xuelin looked up and looked at Qi Aimin with a smile: "Professor Qi, hello."

Qi Aimin could not help but be a little surprised, curious: "Do you know me?"

Pang Xuelin said with a smile: "I have seen in a magazine, Professor of Computer Engineering, Sun Yat-sen University, and the editorial board of the Journal of Electronics and Information Technology."

Qi Aimin was startled, nodded, and squatted down to look at the circuit designed by Pang Xuelin.

After a while, he pointed to the equipment on the floor and asked with a smile: "brother, where did you learn these things?"

Pang Xuelin smiled slightly and said, "Self-taught."

"Self-study?"

Qi Aimin felt a little surprised for a moment.

In this era, apart from computer professionals, there are not many people who can actually contact the computer. Like Pang Xuelin, who can design circuits by using a single-chip microcomputer, even few graduates of the University of Electronic and Information Engineering can do this. Little guy can reach this level by self-study?

Not to mention, the machine code is injected into the FPGA chip through the phone.

He just watched Pang Xuelin's code input process just now. Although he couldn't completely judge the structure of the machine language, there is no doubt that the little guy in front of him is not doing anything, but really injects the machine into the FPGA chip. Code.

This is a bit sensational.

Computer machine instructions are a series of binary digits. After being input to a computer chip, they are transformed into a series of high and low levels so that the computer's electronic components are driven to perform operations.

Although the algorithm instructions that Pang Xuelin injected into the FPGA chip are not large, but converted into machine language, that is at least tens of thousands of binary codes. It is a miracle to input these instructions through the phone without error.

"Little brother, how did you do that?"

Pang Xuelin blinked and said, "Is this difficult?"

Qi Aimin almost spit out old blood.

Is this difficult?

Can't this be done at all? !!

Pang Xuelin smiled and said, "Professor Qi, I forgot to introduce myself. My name is Pang Xuelin. My master is Professor Chen Wenyuan, the head of the Department of Mathematics of Lancheng University, and my second master is Professor Xu Baiqing, the president of Lanzhou University ..."

Qi Aimin and Mu Donglai were taken aback.

Mu Dong came curiously, "Xiao Pang, why haven't you heard of it before? Didn't you say that you just dropped out of school until the third grade? The following things are all self-taught."

Pang Xuelin said with a smile: "It's really self-taught. At the beginning of this year, my cousin and I set up a ramen stall at the entrance of the University of Lanzhou. Then I met Professor Chen Wenyuan by accident. He felt that I had a good talent, so I discussed with the principal Xu Baiqing. When I go to Landa University, I won't be able to enroll in the second half of this year! "

Qi Aimin and Mu Dong looked at each other, always felt that this little guy was talking nonsense in a serious way.

Qi Aimin frowned: "Xiao Pang, where did you learn these things?"

Qi Aimin pointed to the circuit boards and components on the ground.

Pang Xuelin said with a smile: "Landa University Library, when I was at the stall in Landa University, I would go to the library every day to read books. After a long time, I naturally learned."

Seeing the skepticism on the faces of Qi Aimin and Mu Donglai, Pang Xuelinton paused and continued: "For example, Professor Qi, the" Maximum Matching Weight Algorithm "published in the fourth issue of the 1988 Journal of Electronics and Information Technology "Implementation", which proposes a series of new concepts such as effective correlation matrix, ascending adjacency matrix, and destination of points, etc., and made a number of improvements to the maximum matching weight algorithm, and compiled the algorithm into a corresponding program through FORTRAN language. , Debugged on IBM-PC ... "

Qi Aimin couldn't help but be taken aback. He didn't expect that Pang Xuelin knew even a paper he published five years ago.

After thinking about it, Qi Aimin asked, "Xiao Pang, can you talk about your understanding of the maximum matching weight algorithm?"

Pang Xuelin said with a smile: "Your maximum matching weight algorithm was first modified from a polynomial algorithm proposed by Edmonds. The calculation times of Edmonds' algorithm are random, and it is related to checking the edges of the outer points. The order is related. Every time an edge is checked, a formula is used to determine whether it can become a branch on an interlaced tree. Also in this algorithm, although the singular circle in Figure Gi has been contracted into a pseudo-point, The marks and potentials of the points in the odd circles are still being adjusted throughout the entire calculation process, and although the odd circles and shrinking odd circles continue to appear during the entire calculation process, the number of points and cycles in the figure has not decreased. .So you use the effective association matrix, raised-order adjacency matrix and raised-adjacent edge matrix, the destination of the point, the odd circle matrix and the top bar, the expansion of the pseudo interior point, the three-array method of the interleaved tree, etc. The matching weight algorithm has been improved ... "

Pang Xuelin eloquently explained the content of Qi Aimin's thesis.

Qi Aimin was shocked and happy in his heart, and laughed: "Xiao Pang, I didn't expect that you conducted such an in-depth study of my thesis."

"the study?"

Pang Xuelin looked up, with a surprised expression on his face, "I didn't do much research. I just looked at it."

Qi Aimin could not help but hesitated, saying, "You haven't studied how to understand this algorithm so well?"

Pang Xuelin said innocently: "Isn't this normal? After reading it, you will remember it ..."

Qi Aimin stayed for a while and looked at Mu Dong.

Mu Donglai's face showed a shocking expression and asked, "Xiao Pang, you mean, if you read any article, you can remember it all and understand it completely?"

Pang Xuelin nodded with a smile and said, "Yeah, that's why Professor Chen Wenyuan and Professor Xu Baiqing rushed to accept me as a disciple, but I'm not in a hurry, I'll just wait until I'm in college."

Qi Aimin and Mu Dong could not help but look at each other.

Qi Aimin couldn't help crying: "East, I understand now, why do you say this kid is evil!"

Mu Dong shook his head and smiled bitterly.

The reason why he felt Pang Xuelin was evil before, but he felt that this little guy was very young, but his mentality was extremely mature, he was not humble and talkative, and had his own temperament.

And excellent skills, to deal with danger when in danger.

However, I never expected that in the academic field, the other party could bring such a big surprise to himself.

Mu Qingqing on the one side also shined with eyes, the longer she got along with Pang Xuelin, the more she felt the mystery of Pang Xuelin.

This big boy is a big treasure, and he can surprise himself all the time.

Pang Xuelin didn't care about Qi Aimin and Mu Donglai's thoughts, and still kept pressing the binary code.

Mu Donglai and Qi Aimin were not in a hurry, sitting side by side watching with interest Pang Xuelin writing the input machine code.

In their opinion, this is simply a genius show.

Time passed minute by minute, and after about twenty minutes, Pang Xuelin put down the phone and said, "OK!"

Mu Dong came curiously, "Xiao Pang, you mean, can you use this to play a VCD?"

Pang Xuelin smiled and nodded, just trying to say yes, but soon, he patted his head and said, "I'm afraid not."

"what happened?"

Pang Xuelin smiled bitterly: "I patronize as a VCD player, but what about VCD discs? Ordinary discs can only store music. We must find a way to burn a movie from an LD laser disc to a VCD disc."

Mu Dong came and said, "Xiao Pang, do you need any special equipment for this?"

Pang Xuelin groaned for a moment and smiled, "I need a computer and a recorder."

Qi Aimin said, "Xiao Pang, we need both the computer and the recorder, or should we take the VCD disc to our school to record it?"

Pang Xuelin was waiting for Qi Aimin's sentence, Wen Yan said with a smile: "Professor Qi, please trouble you."

"Where is this? There is nothing to worry about." Qi Aimin laughed. "I want to wait for your VCD disc to come out, how does this so-called VCD player perform."

Next, Pang Xuelin took down the LD laser disc player in the room, and incidentally took two LD video discs, and was ready to follow Qi Aimin to Sun Yat-sen University.

At this time, Liu fat man happened to be back.

Mu Donglai talked about Qi Aimin's identity and everyone's purpose to Liu Fatzi, who immediately became interested.

After all, up to now, VCD players are just the vernacular of Pang Xuelin. Although Liu Fatzi didn't doubt Pang Xuelin very much, he could have one more professor from Sun Yat-sen University to supervise. The VCD player would undoubtedly have a double insurance.

Moreover, Qi Aimin also said that Pang Xuelin's idea was highly feasible in itself.

Next, everyone took Liu Fat's van and went to Sun Yat-sen University.

Today is the weekend. Although people come and go in the school, there are not many people in the teaching building.

Qi Aimin took Pang Xuelin and they came to a computer lab and opened the door: "Xiao Pang, there is an IBM PC in it. How are you going to burn?"

Pang Xuelin laughed: "Professor Qi, go to the recorder and leave the rest to me."

VCD recording requires a dedicated recorder, but ordinary recorders can't record video on CDs. Pang Xuelin also needs to write a special VCD recording driver.

This kind of work is not difficult for Pang Xuelin, just need to modify the CD burning driver again through the computer.

But for Mu Dong to come to them, Pang Xuelin's next move has brought them a great impact.

After turning on the computer and starting the programming tool, Pang Xuelin's hands quickly tapped on the keyboard. Lines of code kept flashing on the screen, and Pang Xuelin's hands became phantoms.

In this era of two-finger Zen, there are not many programmers who can use the keyboard to type code fluently in the country, not to mention the speed with which the keyboard is integrated like Pang Xuelin.

It is only those specially trained stenographers that have the typing speed of Pang Xuelin.

But they can only show their capabilities on a typewriter, not on a computer keyboard.

Even Qi Aimin couldn't help but exclaim: "Xiao Pang, you are so incredible, how did you practice the speed of writing code?"

Pang Xuelin laughed: "It's just that practice makes perfect. Just practice a few more times."

Qi Aimin and Mu Dong looked at each other, some could not laugh or cry.

Today is the weekend. Although people come and go in the school, there are not many people in the teaching building. Qi Aimin took Pang Xuelin and they came to a computer lab and opened the door: "Xiao Pang, there is an IBM PC in it. How are you going to burn?"

Pang Xuelin laughed: "Professor Qi, go to the recorder and leave the rest to me."

VCD recording requires a dedicated recorder, but ordinary recorders can't record video on CDs. Pang Xuelin also needs to write a special VCD recording driver.

This kind of work is not difficult for Pang Xuelin, just need to modify the CD burning driver again through the computer.

But for Mu Dong to come to them, UU reading www.uukanshu. com Pang Xuelin's next move has brought them a great impact.

After turning on the computer and starting the programming tool, Pang Xuelin's hands quickly tapped on the keyboard. Lines of code kept flashing on the screen, and Pang Xuelin's hands became ghosts.

In this era of two-finger Zen, there are not many programmers who can use the keyboard to type code fluently in the country, not to mention the speed with which the keyboard is integrated like Pang Xuelin.

It is only those specially trained stenographers that have the typing speed of Pang Xuelin.

But they can only show their capabilities on a typewriter, not on a computer keyboard.

Even Qi Aimin couldn't help but exclaim: "Xiao Pang, you are so incredible, how did you practice the speed of writing code?"

Pang Xuelin laughed: "It's just that practice makes perfect. Just practice a few more times."

Qi Aimin and Mu Dong looked at each other, some could not laugh or cry.

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