主要内容

搜索


Bonsoir

Je me permets de vous contacter afin d’obtenir des informations et un encadrement concernant un projet sur lequel je travaille actuellement. Il s’agit d’une application visant à réguler un oscillateur quantique en potentiel harmonique à l’aide de l’intelligence artificielle.

Plus précisément, mon objectif est de :

Modéliser l’évolution de l’oscillateur quantique sous un potentiel harmonique.

Appliquer des techniques d’IA (réseaux de neurones, renforcement, etc.) pour optimiser la régulation de son état.

Analyser les performances des algorithmes dans le cadre de cette régulation.

Je souhaiterais savoir si vous pourriez m’apporter des conseils ou un encadrement dans la réalisation de ce projet, notamment sur les aspects mathématiques, physiques et computationnels impliqués. De plus, toute suggestion sur des références bibliographiques ou des outils adaptés (MATLAB, Python, TensorFlow, etc.) serait également très précieuse.

Dans l’attente de votre retour, Bien cordialement,

Sara
Sara
上次活动时间: 2025-3-14，14:53

Take our survey to share your thoughts on MATLAB Drive!

📢 We want to hear from you! We're a team of graduate student researchers at the University of Michigan studying MATLAB Drive and other cloud-based systems for sharing coding files. Your feedback will help improve these tools. Take our quick survey here: https://forms.gle/DnHs4XNAwBZvmrAw6
goc3
goc3
上次活动时间: 2025-3-12，20:45

Did you know there is an official MATLAB certification?


Show Results
Imagine you are developing a new toolbox for MATLAB. You have a folder full of a few .m files defining a bunch of functions and you are thinking 'This would be useful for others, I'm going to make it available to the world'
What process would you go through? What's the first thing you'd do?
I have my own opinions but don't want to pollute the start of the conversation :)
I am glad to inform and share with you all my new text book titled "Inverters and AC Drives
Control, Modeling, and Simulation Using Simulink", Springer, 2024. This text book has nine chapters and three appendices. A separate "Instructor Manual" is rpovided with solutions to selected model projects. The salent features of this book are given below:
  • Provides Simulink models for various PWM techniques used for inverters
  • Presents vector and direct torque control of inverter-fed AC drives and fuzzy logic control of converter-fed AC drives
  • Includes examples, case studies, source codes of models, and model projects from all the chapters
The Springer link for this text book is given below:
https://link.springer.com/book/10.1007/978-3-031-62784-2#:~:text=Provides%20Simulink%20models,all%20the%20chapters
This book is also in the Mathworks book program:
https://au.mathworks.com/academia/books/inverters-and-ac-drives-iyer.html
Steve Eddins
Steve Eddins
上次活动时间: 2025-3-11，12:39

Changing Some MATLAB Plotting Defaults

Over the last 5 years or so, the highest-traffic post on my MATLAB Central image processing blog was not actually about image processing; it was about changing the default line thickness in plots.
Now I have written about some other MATLAB plotting behavior that I have recently changed to suit my own preferences. See this new blog post.
Here is a standard MATLAB plot:
x = 0:pi/100:2*pi;
y1 = sin(x);
y2 = cos(x);
plot(x,y1,x,y2)
I don't like some aspects of this plot, and so I have put the following code into my startup file.
set(groot,"DefaultLineLineWidth",2)
set(groot,"DefaultAxesXLimitMethod","padded")
set(groot,"DefaultAxesYLimitMethod","padded")
set(groot,"DefaultAxesZLimitMethod","padded")
set(groot,"DefaultAxesXGrid","on")
set(groot,"DefaultAxesYGrid","on")
set(groot,"DefaultAxesZGrid","on")
With those defaults changed, here is my preferred appearance:
plot(x,y1,x,y2)
To develop uifigure-based app, I wish MATLAB can provide something like uiquestdlg to replace questdlg without changing too much of the original code developed for figure-based app. Also, uiinputdlg <-> inputdlg and so on.
It is time to support the cameraIntrinsics function to accept a 3-by-3 intrinsic matrix K as an input parameter for constructing the object. Currently, the built-in cameraIntrinsics function can only be constructed by explicitly specifying focalLength, principalPoint, and imageSize. This approach has drawbacks, as it is not very intuitive. In most application scenarios, using the intrinsic matrix
K=[fx,0,cx;
0,fy,cy;
0,0,1]
is much more straightforward and effective!
intrinsics = cameraIntrinsics(K)
Learn the basic of quantum computing, how to simulate quantum circuits on MATLAB and how to run them on real quantum computers using Amazon Braket. There will also be a demonstration of machine learning using quantum computers!
Details at MATLAB-AMAZON Braket Hands-on Quantum Machine Learning Workshop - MATLAB & Simulink. This will be led by MathWorker Hossein Jooya.
I kicked off my own exploration of Quantum Computing in MATLAB a year or so ago and wrote it up on The MATLAB Blog: Quantum computing in MATLAB R2023b: On the desktop and in the cloud » The MATLAB Blog - MATLAB & Simulink. This made use of the MATLAB Support Package for Quantum Computing - File Exchange - MATLAB Central
Tawanda
Tawanda
上次活动时间: 2025-3-2，14:05

I am in need of help

Good day I am looking someone to help me on the matlab and simulink I am missing some explanations.For easy communication you can contact 0026876637042
jkr
jkr
上次活动时间: 2025-3-1，13:06

Wondering where your CPU cycles went? Check AI.

Recently my iMac became sluggish. I checked Activity Monitor and found it was spending most of its time in mds_stores. I turned of Apple Intelligence under System Settings - Apple Intelligence & Siri, and its like new again.
Adam Danz
Adam Danz
上次活动时间: 2025-2-25，9:31

Dark mode power savings vs. human behavior

Do you boast about the energy savings you racking up by using dark mode while stashing your energy bill savings away for an exotic vacation🌴🥥? Well, hold onto your sun hats and flipflops!
A recent study presented at the 1st Internaltional Workshop on Low Carbon Computing suggests that you may be burning more ⚡energy⚡ with your slick dark displays 💻[1].
In a 2x2 factorial design, ten participants viewed a webpage in dark and light modes in both dim and lit settings using an LCD monitor with 16 brightness levels.
  • 80% of participants increased the monitor's brightness in dark mode [2]
  • This occurred in both lit and dim rooms
  • Dark mode did not reduce power draw but increasing monitor brightness did.
The color pixels in an LCD monitor still draw voltage when the screen is black, which is why the monitor looks gray when displaying a pure black background in a dark room. OLED monitors, on the other hand, are capable of turning off pixels that represent pure black and therefore have the potential to save energy with dark mode. A 2021 Purdue study estimates a 3%-9% energy savings with dark mode on OLED monitors using auto-brightness [3]. However, outside of gaming, OLED monitors have a very small market share and still account for less than 25% within the gaming world.
Any MATLAB users out there with OLED monitors? How are you going to spend your mad cash savings when you start using MATLAB's upcoming dark theme?
  1. BBC study: https://www.sicsa.ac.uk/wp-content/uploads/2024/11/LOCO2024_paper_12.pdf
  2. BBC blog article https://www.bbc.co.uk/rd/articles/2025-01-sustainability-web-energy-consumption
  3. 2021 Purdue https://dl.acm.org/doi/abs/10.1145/3458864.3467682
Mike Croucher
Mike Croucher
上次活动时间: 2025-2-24，22:04

All you need is....

tiledlayout(4,1);
% Plot "L" (y = 1/(x+1), for x > -1)
x = linspace(-0.9, 2, 100); % Avoid x = -1 (undefined)
y =1 ./ (x+1) ;
nexttile;
plot(x, y, 'r', 'LineWidth', 2);
xlim([-10,10])
% Plot "O" (x^2 + y^2 = 9)
theta = linspace(0, 2*pi, 100);
x = 3 * cos(theta);
y = 3 * sin(theta);
nexttile;
plot(x, y, 'r', 'LineWidth', 2);
axis equal;
% Plot "V" (y = -2|x|)
x = linspace(-1, 1, 100);
y = 2 * abs(x);
nexttile;
plot(x, y, 'r', 'LineWidth', 2);
axis equal;
% Plot "E" (x = -3 |sin(y)|)
y = linspace(-pi, pi, 100);
x = -3 * abs(sin(y));
nexttile;
plot(x, y, 'r', 'LineWidth', 2);
axis equal;
On 27th February María Elena Gavilán Alfonso and I will be giving an online seminar that has been a while in the making. We'll be covering MATLAB with Jupyter, Visual Studio Code, Python, Git and GitHub, how to make your MATLAB projects available to the world (no installation required!) and much much more.
Sign up (it's free!) at MATLAB Without Borders: Connecting your Projects with Python and other Open-Source Tools - MATLAB & Simulink
Hannah
Hannah
上次活动时间: 2025-2-21，16:34

Did you know you could 'ctrl + f' in MATLAB Editor?

Of course
62.5%
I never tried
37.5%
16 个投票
Check out the result of "emoji matrix" multiplication below.
  • vector multiply vector:
a = ["😁","😁","😁"]
Warning: Function mtimes has the same name as a MATLAB built-in. We suggest you rename the function to avoid a potential name conflict.
Warning: Function mtimes has the same name as a MATLAB built-in. We suggest you rename the function to avoid a potential name conflict.
a = 1x3 string array
"😁" "😁" "😁"
b = ["😂";
"😂"
"😂"]
b = 3x1 string array
"😂" "😂" "😂"
c = a*b
c = "😁😂😁😂😁😂"
d = b*a
d = 3x3 string array
"😂😁" "😂😁" "😂😁" "😂😁" "😂😁" "😂😁" "😂😁" "😂😁" "😂😁"
  • matrix multiply matrix:
matrix1 = [
"😀", "😃";
"😄", "😁"]
matrix1 = 2x2 string array
"😀" "😃" "😄" "😁"
matrix2 = [
"😆", "😅";
"😂", "🤣"]
matrix2 = 2x2 string array
"😆" "😅" "😂" "🤣"
resutl = matrix1*matrix2
resutl = 2x2 string array
"😀😆😃😂" "😀😅😃🤣" "😄😆😁😂" "😄😅😁🤣"
enjoy yourself!
Adam
Adam
上次活动时间: 2025-2-17，2:45

TUTOR NEEDED!! OFFER $20/hr!!

I am looking for a Simulink tutor to help me with Reinforcement Learning Agent integration. If you work for MathWorks, I am willing to pay $30/hr. I am working on a passion project, ready to start ASAP. DM me if you're interested.
Image Analyst
Image Analyst
上次活动时间: 2025-2-19，17:51

Snow where you live - love it or hate it?

I love it all
45%
Love the first snowfall only
15%
Hate it
17.5%
It doesn't snow where I live
22.5%
40 个投票
Since May 2023, MathWorks officially introduced the new Community API(MATLAB Central Interface for MATLAB), which supports both MATLAB and Node.js languages, allowing users to programmatically access data from MATLAB Answers, File Exchange, Blogs, Cody, Highlights, and Contests.
I’m curious about what interesting things people generally do with this API. Could you share some of your successful or interesting experiences? For example, retrieving popular Q&A topics within a certain time frame through the API and displaying them in a chart.
If you have any specific examples or ideas in mind, feel free to share!