Chapter 55 You Just Write the Equations and Leave the Rest to Me
Chapter 55 Just write the equations and leave the rest to me
Xu You believes that even those seniors in the physics department may not be able to find the problem.
After another series of calculations, Xu You finally derived accurate energy level data for Mu hydrogen atoms.
And through the slight deviation, the radius of the internal charge distribution of the proton was revised.
After comparing the data, Xu You found that the accuracy was much improved than before.
After calculating more accurate results, Xu You finally felt a full sense of accomplishment.
"However, compared with the long-range subtraction scheme used in supercomputing, the accuracy value is still quite different."
After all, the human brain is not a computer. No matter how smart it is, it cannot reach the computing speed of a computer.
At this time, Xu You still felt slightly disappointed in his heart.
Even my calculation results are already very accurate.
But Xu You knew that compared to the supercomputing results, it still seemed too rough.
"What's wrong? Did you encounter any problems?"
Seeing Xu You's appearance, Lou Song asked curiously.
"You can't say that. It was still done. It's just that the result is not that accurate. I suddenly thought that the human brain can never be better than a computer, and I feel a little desperate."
Xu You told Lou Song what happened just now.
"Hey, there is nothing we can do about it. This is the impact of technological development. I understand the feeling of despair, just like the despair when Kejie and AlphaGo play chess."
In the past, Go artificial intelligence could not even play the game of some stronger amateur players.
But with the advancement of artificial intelligence algorithms, even top chess players will only be defeated when faced with artificial intelligence.
"However, I think that with the strength of the two of us, we may be able to make this result more accurate."
At this time, Lou Song suddenly changed the subject.
"Huh? Really, Lou Song?"
"I think you can give it a try. As long as you can formulate a more precise equation, I will solve the rest. Because from now on, it will be a mathematical problem."
Xu You was delighted when he heard this.
It sounds like something fun!
If only they could really use the power of the two of them to make this calculation more accurate.
That would definitely be a very refreshing thing.
"If you can summarize all the data and equations, then I will try to edit a set of algorithms to see if I can calculate more accurate results. Of course, if the amount of calculations is too large, my computer may crash."
Lou Song's computer is equipped with a 12th generation Core processor, which is fully capable of handling average calculations.
"Okay, then let me see if I can restate the equation."
Xu You basically knows nothing about computer algorithms.
Fortunately, with the genius of Lou Song, Xu You saw hope of solving this problem.
In the next few days, the two spent almost all their spare time on solving this problem.
The process of solving the problem was not as easy as expected.
In fact, there is no problem with either the equation written by Xu Youli or the algorithm edited by Lou Song.
However, within the limited computing power of computers, it is impossible to complete a large amount of calculations.
The equation can only be simplified while ensuring accuracy as much as possible.
Finally, after the two revised the plan many times.
Finally a feasible plan was formulated.
And Lou Song's computer, after dozens of hours of calculations.
The final result was finally calculated.
"That's great! This time it's only two standard deviations away from the experimental result!"
Compared with the previous error of five standard deviations, the accuracy this time has undergone a qualitative change.
Seeing this ideal result, Xu You and Lou Song couldn't help but high-five and celebrate.
Although this is just a random question asked by Wang Xiangwu, it is much higher than the competition questions in terms of difficulty and application value.
The questions in the competition, no matter how difficult they are, are only carefully designed by the question makers to test the students' abilities.
Compared with the actual problem, it is completely different.
Not only do real scientific research problems have no standard solutions, but the problem itself may even be wrong.
This was also the first time that Xu You and Lou Song had close contact with scientific research.
After the excitement, Xu You began to organize the entire problem-solving process.
Because I don’t know whether using computer algorithms to assist calculations is within the rules.
Xu You deliberately listed both methods in the process.
And in the computer algorithm part, Lou Song’s name was left.
After sorting out the entire problem-solving process, Xu You added an attachment and sent the file to Wang Xiangwu's mailbox.
…
In the evening, after finishing a day's work.
Wang Xiangwu remembered the homework assigned before.
"Let's see if any students can do it."
In order to distinguish the teaching and research parts of the work.
Wang Xiangwu has two different mailboxes, which receive two different types of mail.
Wang Xiangwu logged into the email address left for his students and checked the emails.
"Yes, there are still many students who have done this problem."
In Wang Xiangwu's mailbox, there are more than thirty unread emails.
Wang Xiangwu opened the questions one by one and watched how everyone answered the question.
Just as Wang Xiangwu expected.
In the vast majority of emails, the problem that the energy level data of hydrogen atoms is inaccurate was not considered.
However, this cannot be blamed on the students, after all, this is an issue beyond the syllabus.
Moreover, in class, Wang Xiangwu only mentioned it in one sentence and did not explain the details in depth.
Of course, even so, this is not a wrong result.
It can only be said that the accuracy is relatively low.
"Not bad! There are still a few students who have considered this issue."
Finally, Wang Xiangwu saw a few students and carefully considered the energy level of hydrogen atoms.
Successfully calculated results that are only five standard deviations from the experimental values.
"The students in this class are pretty good."
It stands to reason that such difficult questions are already at a level that only master's students can achieve.
Even if a student from Ji University can solve such a problem in his sophomore year, it is already very impressive.
"Huh? This is..."
At this time, a unique solution process appeared in front of Wang Xiangwu.
It is different because this answer is much more complicated than the previous answers given by other students.
The previous process was similar to that of those students. They took into account the energy level error of hydrogen atoms and calculated the answer with an error of only five standard deviations.
But the other solution that came with it actually made Professor Wang Xiangwu frown.
"Is there such a way to simplify equations?"
Compare this to UConn's long-term weight loss programs.
The equations listed in this student's solution are obviously much simpler.
Although such an equation, compared with the long-range subtraction scheme, the accuracy value will be somewhat worse.
But at the same time, it can also greatly reduce the amount of calculation.
You don't even need to use a supercomputer, even a better home computer can calculate the result.
"You even edited the algorithm yourself? This kid is really not simple!"
Chapter completed!