Siheyuan: I eat melons while doing scientific research

Chapter 1224 Perfect Mathematical Calculation Software (4k, 8k available)

Hearing what the dean said, Gao Zhendong smiled and said, "As we all know, there are five of the Four Great Classics. It's normal that matrix calculations can calculate partial differential equations, right?"

The Four Great Classics or the Four Great Books have a long history. The fact that the "Four Greats" will bring out five books is known to many people, even those who are engaged in science and engineering. However, the one that was rarely mentioned later is a bit tricky.

The comrades really wanted to say “What the hell is normal!”, but they suppressed themselves. They were all cultured people.

Besides, there are indeed internal connections between these operations, but I didn’t expect that this senior committee member could reflect these internal connections in the form of a program and achieve the effect of performing these basic advanced mathematical calculations.

It seems that this Commissioner Gao has a solid foundation in mathematics. No matter how good a person is in his or her own profession, it is difficult for him or her to reach this level of mathematical skills, except for some special professions such as mathematics and physics. You must know that this is not just one or two specific calculation examples, but it is about achieving generalization.

In addition, it is not enough to have a good foundation in mathematics, computer software skills must also be top-notch. Those who have studied this know very well that the simple math library of the C language cannot support the mapping from mathematics to software, and many things have to be done by yourself.

However, some people with good memory know the relationship between C language and Gao Zhendong, so they don’t find it strange, because he was the one who created C language!
Although Gao Zhendong's public achievements are already very fruitful in the eyes of ordinary comrades, they are not too many compared to all his own achievements, and C language happens to be one of them. It seems that C language and computers have made great contributions to this comrade's appointment as a member of the Science Committee.

National Academy of Science and Technology: This matter doesn’t seem to be the case…

Looking at this young commissioner, the comrades still found it a bit magical.

The chief engineer of the 12th Ministry of Machine Building and Director Chi looked at the expressions of these comrades and felt a secret sense of satisfaction in their hearts. They could also feel happy when seeing their own people showing off.

Moreover, they could guess a fact, that is, this thing was most likely made by Gao Zhendong himself, otherwise the computing institute would have gotten wind of it anyway.

"Commissioner Gao, you worked so hard to develop this software by yourself!" Director Chi suddenly changed his attitude and became a supporting actor. It didn't matter if he said something wrong, because Gao Zhendong would always get the credit.

It turns out he was right.

"It's not bad. It's all the accumulation of engineering calculations in the past few years. I didn't spend much time on it. I just sorted it out during the last period of time."

Okay, Chief Engineer Gao, you can stop talking. Director Chi never expected that Gao Zhendong could act so naturally and so freshly.

However, those who know Gao Zhendong well can also see from this software how much effort he has put into scientific research in recent years. It is very unlikely for ordinary comrades to accumulate so many and complete results in their daily work. This software covers too many areas. If it is daily accumulation, it can just prove the fact that he spans multiple disciplines.

Even the research process can form a set of extremely important software results. This ability is really not possessed by ordinary people.

From the many functions, wide coverage and ease of use, it can be seen that Comrade Gao Zhendong is a jack of all trades and he really has real skills.

Gao Zhendong didn't expect that this thing could indirectly endorse his cross-industry business. He just wanted to launch the software as soon as possible.

He opened a pre-prepared C language file and started compiling and running it.

Comrades, you can see clearly that this C language file has nothing but the necessary framework structure and only a few lines of statements. Judging from these lines of statements, it seems to be related to the m file that calculated the partial differential equation.

Is it...

Some comrades' hearts began to pound. If it was true, then this mathematical software was simply perfect!
After Gao Zhendong completed the compilation, he started the freshly-released program. As his comrades expected, the image of the partial differential equation popped up on the monitor again.

"Commissioner Gao, can C language directly call the mathematical program of this software in the program?" For quite a few comrades, this is a very practical and revolutionary function.

Many algorithms are difficult to write in C language, and if the algorithms written in this software cannot be directly called in C language, it means that the calculation results of mathematical software must be used in other ways such as files. And comrades can see that this software is more convenient than C language in some aspects in directly using data to draw pictures.

Gao Zhendong's demonstration of calling m files directly in C language opened the door to a new world in their hearts. After all, C language is not as good as this software in terms of algorithms, but it is worse than this in terms of logic and control.

Use C language to do the process, and m file to do the algorithm, perfect! ! ! !
Hearing what his comrades said, Gao Zhendong smiled and nodded: "Yes, it can, and there are many ways to call it. You can directly generate the calculation code of this software in C language and input it into the calculation engine for calculation. You can also directly call the function or ready-made file of this software through the calculation driver engine. And you can use the parameter system of C language to directly pass the calculation-related parameters and receive the calculation results."

With a buzz, the comrades began to talk.

"Great! This way, I only need to optimize my algorithm. The process and control can still use the original code." This comrade was probably traumatized by the use of C language to implement advanced mathematical calculations, and he immediately decided to use this software to develop the algorithm.

"Being able to pass parameters and get results is a step forward compared to just being able to call."

"This method is so convenient. It's twice as easy to get the job done with half the effort!"

"Yes, yes, I can directly put what I want to calculate into it. You don't know, but the calculation programs my students use can give me a cerebral hemorrhage. They pose no threat to my academic status, but they can ruin my reputation in the education field..." A committee member complained crazily about his students.

Gao Zhendong almost laughed out loud. Not to mention you, even the old grandfather who solved the food problem for the people of the whole country would have to scratch his head and cover his face in silence when he mentioned his students decades later.

The comrades present are no ordinary people and have seen many ups and downs, but they are all amazed by the functionality and convenience of this software. It is really easy to use.

A committee member suddenly had an idea: "Commissioner Gao, can this software add a function to call C language in reverse? After all, sometimes when performing calculations, it is also necessary to call some C language functions..."

When the comrades heard this, they all looked at Gao Zhendong. This function is great! We take back what we said just now. With this reverse call to C language, this software is the most perfect. So greed is something that everyone cannot avoid. It's just that some people's greed is used in the right way.

However, comrades also know that this request may be a bit excessive. After all, how can comrades who work in computing generally think of calling C language in reverse? It is estimated that Commissioner Gao has tried his best and put a lot of thought into realizing the current package of functions.

It doesn't matter if it hasn't been realized yet, just leave the next thing to us! Director Chi thought.

Then Gao Zhendong smiled and said, "Good question! It's true!"

Huh? This is a ruthless killing! Director Chi was a little disappointed, but it didn't matter, the promotion was always ours, and anything that Commissioner Gao didn't have the energy and time to do, it was our turn to do it.

"Commissioner Gao, have the instructions for using this software been developed?" This is what the director of the Department of Mathematics, Physics and Chemistry, as well as the directors of several other departments, are most concerned about.

Obviously, the functions of this software are extremely rich, complex and huge. It is probably impossible for Commissioner Gao Zhendong to teach the comrades personally. The most realistic thing now is that Commissioner Gao has a set of compiled software manuals for comrades to learn by themselves. If they really don’t understand, there is still time to ask him.

As we all know, our scientific and technological workers have an amazing ability to learn on their own. If they can turn a model into a submarine, are you afraid?

Gao Zhendong nodded: "Yes."

After saying that, he took out a tape.

"This is the instruction manual. It's not too big, but not too small either. It would be a waste of memory to put it on the chip memory, so I put it on a magnetic tape separately."

Gao Zhendong had saved instructions for using Octave in his previous life, and he also saved a bunch of MATLAB textbooks. With the two things confirmed, it was not difficult to make a set of instructions for using Octave.

Gao Zhendong's words made the chief engineer of the 12th Ministry of Machinery laugh out loud: "Comrade Zhendong, don't worry about the memory. We have as much as you want."

Comrades nodded in agreement. With such a high level of achievement, what's wrong with using a few memory sticks? I wish you could use more.

After laughing, the chief engineer of the 12th Ministry of Machinery said to the comrades present: "Let's do this. This set of instructions will be handed over to our comrades in the Computation Institute. They will be responsible for printing it and then distributing it to everyone for self-study. At the same time, they will also start learning this mathematical system and strive to develop the training capabilities for this mathematical software as soon as possible."

The comrades nodded one after another. Well, this is a good arrangement. After all, this is a software. It is most appropriate for the computing institute to organize the training. We can't let Commissioner Gao do the training himself, right? Taking the time to answer some questions is the maximum support.

Moreover, the easy duplication of electronic files will bring some management troubles, so paper documents are most suitable.

Gao Zhendong was indifferent. He was in charge of killing but not burying.

The deans of several departments present exchanged glances and opinions. The dean of the Department of Mathematics, Physics and Chemistry said, "Well, it's OK. You can wait for our list of which comrades will be given the specific distribution. There will definitely be no problem for those present, but for other units, we still need to discuss with the Defense Work Committee and other units."

They are not worried about confidentiality issues. The chief engineer of the 12th Ministry of Machine Building is still here, and they will naturally handle it.

As for the promises made to the comrades present before any discussion, they had no choice. They saw that if they did not make the promise, the comrades present would not be able to pass this test. They did not see that the comrades were just about to grab it. The people present were all treasures, so if they grabbed it, it was taken, and they could not blame the comrades.

The comrades present were all smiling and praising the leader for his wisdom! For a while, flattery was everywhere, and flattery was everywhere. It was not shameful to support him.
-
Somewhere in the northeastern coastal area, Hong Gong, who had just returned from the capital not long ago, was organizing work.

"How is the renovation of the traveling wave test equipment for acoustic tubes going?" I studied hard in Beijing, and when I returned to the unit, I struck out hard. Don't forget that Engineer Hong is one of the leaders in the field of hydroacoustics.

"Everything went smoothly. There weren't many things that needed to be changed. The main thing was to add two sound transducers to the pipe wall. The rest was mainly about algorithms and data processing." A comrade reported.

"Well, you must pay attention. According to the principle that Chief Engineer Gao analyzed for us at the time, this equipment has the ability to measure pressure. Don't just simply install the sensor. You have to consider the pressure measurement of the entire sound tube. It must not only meet the maximum diving depth requirements of our planned submarines, but also leave at least 30% margin." It is our technical habit to leave enough redundancy and make enough preparations in advance.

"Don't worry, Mr. Hong, we will pay attention to this matter." He was a worker in Beijing and is a boss when he comes back.

Engineer Hong nodded and turned to look at another comrade: "Have you contacted the Department of Applied Chemistry? Are they implementing our request for polyurethane materials?"

According to Chief Engineer Gao's analysis, in addition to rubber, polyurethane is also a very suitable material. We don't have much rubber, but polyurethane is much easier to deal with.

The reason why plastic is cheap is that as long as there is a breakthrough in production technology, there will be plastic as long as there is oil, of course special cases are another matter.

"It has been implemented. The Department of Applied Chemistry is already organizing factories and institutes to research and produce polyurethane materials that meet our needs." Polyurethane comes in many forms, and the comrades in the Department of Applied Chemistry need to find a way to produce a form that meets our needs, but this is not very difficult.

"Comrades from the theoretical analysis group, tell us about your current situation." This is of utmost importance. Through theoretical analysis, many inappropriate parameter combinations can be screened out. Although Chief Engineer Gao has given a ready-made structural dimension, he also said that this may not be the best, but only a bottom line.

"The preparation for mathematical analysis is going smoothly. Comrades have fully digested the principles and formulas. Comrades from the computer group are compiling the computer programs needed for the analysis based on our digestion results. Overall, the progress is smooth. The biggest obstacle is partial differential equations and advanced mathematical operations, which are quite difficult. The finite element method is a bit more troublesome. The principles are not difficult to understand, but the calculation program is very difficult to write. Matrices, linear algebra, and the huge amount of calculations still require further efforts from comrades." The work in this area is very specific.

Engineer Hong didn't think there was anything wrong with it. The progress was already very fast. When doing research, there would always be difficulties. The most gratifying thing now was that there were no problems with the principles and routes. As for other problems, they could always be worked out.

(End of this chapter)