When he heard this answer, Rui Xiaoting suddenly felt a sense of happiness.

It's like finally coming home after being hungry for a long time, and pushing open the door just in time for the dumplings to come out of the pot.

For a moment, he even felt that the other party had foreseen that he would come, otherwise how could he have made such adequate preparations?

But he was soon denied by himself.

It's not that there is an insistence on materialism.

It's that he believes he shouldn't be that important......

"Actually, Professor Rui, if you come a week early, I really don't have a good solution."

Chang Haonan took Rui Xiaoting and the two of them all the way into the computer room.

Like the Dawn 1000 of the computing institute, the real server cabinet is not accessible to everyone, except for a few fixed maintenance engineers, everyone else who enters must be approved by Chang Haonan himself.

So the three of them came to an operating room with several computers as usual.

Most portable hard drives in this era cannot be hot-swapped in the boot state, and need to be turned off before plugging into the motherboard.

Taking advantage of the restart of the computer, Chang Haonan took the opportunity to start Amway's own new software:

"We have recently developed a new simulation tool, the core of which is a revolutionary method for reducing the dimensionality of strong nonlinear partial differential equations, so it can be applied to multiphysics simulations under strong coupling.

"What's more, I've kept the interface highly customizable, so professionals like you can flexibly call their own numerical simulation methods according to their needs, and can also be combined with our preset algorithms......"

Since this software is going to continue to operate in the future, and it will have to compete with foreign competitors of the same type, it must be that the more users, the better.

It's not just about market share.

The large number of users using the information and data they feed back is a huge asset in itself.

Considering that most of the domestic enterprises are still slightly deficient in terms of R&D capabilities, the research institutes and universities are obviously the focus of Chang Haonan's next promotion.

Coercive promotion by executive order is certainly an option, but it is also a double-edged sword.

And it's not necessary.

The advantage is too great, and the A face can win.

"That's really the kind of thing you do......"

Rui Xiaoting watched in disbelief as Chang Haonan opened a rather rudimentary dialog box.

"Uh...... In the future, we will provide a more complete graphical interactive interface, but for the time being, because the program encapsulation has not yet been carried out, it can only be operated with command line statements for the time being. ”

Chang Haonan looked at the graduate student next to him, "Are you kidding me", and quickly explained.

"So...... What should I do next? I've brought the computational code related to the discrete time transfer matrix method for many-body systems......"

In the world of computing, there are many things that are counterintuitive.

The combined application of multiple methods to this kind of thing is actually very simple on paper, and the complexity of the idea itself will not exceed the force problem of high school physics.

It is to separate the research objects according to different characteristics, establish the equation for each part in an appropriate way, and finally solve it in parallel.

But since commercial numerical analysis software itself was still in its infancy, in the late 90s, no one thought of adding it as a complete feature.

"It's very simple, I'll show you how, and then you can try it yourself."

Chang Haonan, who has returned from the third decade of the 21st century, knows that at this time, he must not do everything by himself, but to let users get engaged.

"Take ......"

Chang Haonan thought for a while, and quickly continued:

"Take the support arm of the rocket artillery directional tube as an example."

"The physical model of this system should be a small deformation of Euler-Bernoulli beam 1, smooth column hinge 2, rigid body beam 3, smooth column hinge 4 and rigid body beam 5, where No. 3 and No. 5 can have large displacement movement relative to No. 1, although the structure is simple, but it just meets the requirements."

"Next, just divide the beam into four elements to establish the finite element equation of motion, and then combine it with the multibody system...... It is your new method to jointly solve the law of system motion, and at the same time, the law of system motion can also be obtained by using the classical fourth-order Rungekut integral system of the integral system, so that there are four independent equations, combined with the boundary conditions of the rigid body beam 5......"

"In the end, as long as these 11 algebraic equations are solved together, the dynamic response of the system can be obtained."

While saying this, Chang Haonan knocked down the carriage with a very fanciful snap.

Actually, this step can be done with a mouse click, but it is said that using the keyboard entirely will make the operator look more professional.

At least that's how most of the future TV series involving hackers will be played.

Although it can only be operated from the command line, it is still easy for him, a core developer, to use.

The results of the calculations are quickly displayed on the screen in the form of numerical points.

"It's the same here, it's still a semi-finished product, so you can only output data in the form of characters, and when you get to the full version, you can directly give the curve graph, and of course, if you need data, you can also export it."

In the field of human-computer interaction, Chang Haonan, who has been ahead of the curve for more than 20 years, is not boasting, and can definitely kill software engineering colleagues all over the world.

Rui Xiaoting, who was watching from behind, also nodded again and again.

He is actually 41 years old this year, slightly older than Chang Haonan estimated, and researchers at this age have more or less experienced situations where they need to write their own applications, and Chang Haonan still spends time typing characters after each sentence, but he can also keep up with the train of thought.

It's just that the graduate student who came with me was miserable.

At first, I could understand two steps, but later I gradually developed in the direction of listening to heavenly books.

Looking to the side, I saw that my teacher was concentrating, so I had to sigh and ask later.

"Or ...... Shall I try? ”

Looking at the rows of data displayed on the screen one after another, Rui Xiaoting felt that his hands were itching.

Chang Haonan looked at the other party's expression, and he was already sure that he should be able to get the first customer.

"Okay, if there's anything you don't understand, you can ask me."

Then he stood up and gave up his seat to the other party.

Then he added:

"By the way, I just gave you a list of the six degrees of freedom of the rocket's external ballistic equations, and you can call it directly when the time comes."

"Huh?"

Rui Xiaoting briefly recalled and found that he didn't seem to have missed any steps just now:

"Where?"

"Wait a minute, I'll be out soon."

As soon as Chang Haonan's voice fell, a long list of equations was displayed on the screen one after another.

"Hiss......"

Rui Xiaoting, who was sitting in front of the computer, felt that her hands were a little numb.

His discrete time transfer matrix method for many-body systems is special in principle, so it is possible to avoid establishing a system of equations for the dynamics of the overall system.

However, it is still necessary when used in conjunction with other kinetic systems.

This wave can be said to save a lot of work without knowing it.

He felt like he had fallen.

"So, Director Chang."

Rui Xiaoting turned his head and asked:

"If I want to continue using it after I go back, how can I get the right to use this software?"

(End of chapter)