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https://blogs.mathworks.com/deep-learning/2024/07/09/local-llms-with-matlab/

David
上次活动时间: 2024-9-18

Did you know you can use Local LLMs with MATLAB?

Local large language models (LLMs), such as llama, phi3, and mistral, are now available in the Large Language Models (LLMs) with MATLAB repository through Ollama™!

Read about it here:

local-llm

Contests

Chen Lin
上次活动时间: 2024-9-12

An interview with Tim Marston

Dear MATLAB contest enthusiasts,

In the 2023 MATLAB Mini Hack Contest, Tim Marston captivated everyone with his incredible animations, showcasing both creativity and skill, ultimately earning him the 1st prize.

We had the pleasure of interviewing Tim to delve into his inspiring story. You can read the full interview on MathWorks Blogs: Community Q&A – Tim Marston.

Last question: Are you ready for this year’s Mini Hack contest?

MATLAB online documentation redirection is very time-consuming - MATLAB Answers - MATLAB Central

cui,xingxing
上次活动时间: 2024-12-13，0:56

(Document redirection) Online documents do not remind you to select your geographic destination every time you reopen them

As far as I know, starting from MATLAB R2024b, the documentation is defaulted to be accessed online. However, the problem is that every time I open the official online documentation through my browser, it defaults or forcibly redirects to the documentation hosted site for my current geographic location, often with multiple pop-up reminders, which is very annoying!

Suggestion: Could there be an option to set preferences linked to my personal account so that the documentation defaults to my chosen language preference without having to deal with “forced reminders” or “forced redirection” based on my geographic location? I prefer reading the English documentation, but the website automatically redirects me to the Chinese documentation due to my geolocation, which is quite frustrating!

----------------2024.12.13 update-----------------

Although the above issue was resolved by technical support, subsequent redirects are still causing severe delays...

cui,xingxing
上次活动时间: 2024-9-28

(Enhancement Request)"vision.VideoPlayer/VideoViewer" should be presented as a more modern player

In the past two years, MATHWORKS has updated the image viewer and audio viewer, giving them a more modern interface with features like play, pause, fast forward, and some interactive tools that are more commonly found in typical third-party players. However, the video player has not seen any updates. For instance, the Video Viewer or vision.VideoPlayer could benefit from a more modern player interface. Perhaps I haven't found a suitable built-in player yet. It would be great if there were support for custom image processing and audio processing algorithms that could be played in a more modern interface in real time.

Additionally, I found it quite challenging to develop a modern video player from scratch in App Designer.（If there's a video component for that that would be great）

-----------------------------------------------------------------------------------------------------------------

BTW，the following picture shows the built-in function uihtml function showing a more modern playback interface with controls for play, pause and so on. But can not add real-time image processing algorithms within it.

goc3
上次活动时间: 2024-12-3，13:54

Congratulations to William!

I was browsing the MathWorks website and decided to check the Cody leaderboard. To my surprise, William has now solved 5,000 problems. At the moment, there are 5,227 problems on Cody, so William has solved over 95%. The next competitor is over 500 problems behind. His score is also clearly the highest, approaching 60,000.

Please take a moment to congratulate @William.

J.K043006
上次活动时间: 2024-8-29

"corr" malfunctioning in cody

I've been working on some matrix problems recently(Problem 55225)

and this is my code

It turns out that "Undefined function 'corr' for input arguments of type 'double'." However, should't the input argument of "corr" be column vectors with single/double values? What's even going on there?

Chris Hooper
上次活动时间: 2024-8-29

uniqueN function would be useful

isequaln exists to return true when NaN==NaN.

unique treats NaN==NaN as false (as it should) requiring NaN to be replaced if NaN is not considered unique in a particular application. In my application, I am checking uniqueness of table rows using [table_unique,index_unique]=unique(table,"rows","sorted") and would prefer to keep NaN as NaN or missing in table_unique without the overhead of replacing it with a dummy value then replacing it again. Dummy values also have the risk of matching existing values in the table, requiring first finding a dummy value that is not in the table.

uniquen (similar to isequaln) would be more eloquent.

Please point out if I am missing something!

supercomputers
上次活动时间: 2024-11-6

writing matlab code using llm

hello i found the following tools helpful to write matlab programs. copilot.microsoft.com chatgpt.com/gpts gemini.google.com and ai.meta.com. thanks a lot and best wishes.

https://www.mathworks.com/matlabcentral/fileexchange/163796-large-language-models-llms-with-matlab

Hans Scharler
上次活动时间: 2024-7-26

LLMs with MATLAB Now Supports OpenAI GPT-4o mini

Check out the LLMs with MATLAB project on File Exchange to access Large Language Models from MATLAB.

Along with the latest support for GPT-4o mini, you can use LLMs with MATLAB to generate images, categorize data, and provide semantic analyis.

Run it now by clicking Open in MATLAB Online, signing in, and using your API Key from OpenAI.

DH
上次活动时间: 2024-8-8

Can someone tell me what's wrong with this code? This is a problem from Cody. For example, when n=3, the output should be the matrix [1 2 2 3 3 3]

function ans = your_fcn_name(n)
n;
j=sum(1:n);
a=zeros(1,j);
 for i=1:n
   a(1,((sum(1:(i-1))+1)):(sum(1:(i-1))+i))=i.*ones(1,i);     
 end
 disp

Marisa
上次活动时间: 2024-8-26

Can't click Roll the Dice!

I am trying to earn my Intro to MATLAB badge in Cody, but I cannot click the Roll the Dice! problem. It simply is not letting me click it, therefore I cannot earn my badge. Does anyone know who I should contact or what to do?

Gregory Vernon
上次活动时间: 2024-7-13

More easily enable CAD-like view mode

Something that had bothered me ever since I became an FEA analyst (2012) was the apparent inability of the "camera" in Matlab's 3D plot to function like the "cameras" in CAD/CAE packages.

For instance, load the ForearmLink.stl model that ships with the PDE Toolbox in Matlab and ParaView and try rotating the model.

clear

close all

gm = importGeometry( "ForearmLink.stl" );

pdegplot(gm)

To provide talking points, here's a YouTube video I recorded.

Things to observe:

Note that I cant seem to rotate continuously around the x-axis. It appears to only support rotations from [0, 360] as opposed to [-inf, inf]. So, for example, if I'm looking in the Y+ direction and rotate around X so that I'm looking at the Z- direction, and then want to look in the Y- direction, I can't simply keep rotating around the X axis... instead have to rotate 180 degrees around the Z axis and then around the X axis. I'm not aware of any data visualization applications (e.g., ParaView, VisIt, EnSight) or CAD/CAE tools with such an interaction.
Note that at the 50 second mark, I set a view in ParaView: looking in the [X-, Y-, Z-] direction with Y+ up. Try as I might in Matlab, I'm unable to achieve that same view perspective.

Today I discovered that if one turns on the Camera Toolbar from the View menubar, then clicks the Orbit Camera icon, then the No Principal Axis icon:

That then it acts in the manner I've long desired. Oh, and also, for the interested, it is programmatically available: https://www.mathworks.com/help/matlab/ref/cameratoolbar.html

I might humbly propose this mode either be made more discoverable, similar to the little interaction widgets that pop up in figures:

Or maybe use the middle-mouse button to temporarily use this mode (a mouse setting in, e.g., Abaqus/CAE).

Honzik
上次活动时间: 2024-7-18

Matlab Custom Font

I've noticed is that the highly rated fonts for coding (e.g. Fira Code, Inconsolata, etc.) seem to overlook one issue that is key for coding in Matlab. While these fonts make 0 and O, as well as the 1 and l easily distinguishable, the brackets are not. Quite often the curly bracket looks similar to the curved bracket, which can lead to mistakes when coding or reviewing code.

So I was thinking: Could Mathworks put together a team to review good programming fonts, and come up with their own custom font designed specifically and optimized for Matlab syntax?

jmgoldba
上次活动时间: 2024-6-21

Add Tools->Basic Fitting->...Weighted least squares

An option for 10th degree polynomials but no weighted linear least squares. Seriously? Jesse

Kalhara
上次活动时间: 2024-6-19

NVIDIA supercharge the AI world

What do you think about the NVIDIA's achivement of becoming the top giant of manufacturing chips, especially for AI world?

https://blogs.mathworks.com/community/2015/02/26/lets-code-make-a-cody-video/

Ned Gulley
上次活动时间: 2024-6-13

Make a video: "How I Solved It"

Twitch built an entire business around letting you watch over someone's shoulder while they play video games. I feel like we should be able to make at least a few videos where we get to watch over someone's shoulder while they solve Cody problems. I would pay good money for a front-row seat to watch some of my favorite solvers at work. Like, I want to know, did Alfonso Nieto-Castonon just sit down and bang out some of those answers, or did he have to think about it for a while? What was he thinking about while he solved it? What resources was he drawing on? There's nothing like watching a master craftsman at work.

I can imagine a whole category of Cody videos called "How I Solved It". I tried making one of these myself a while back, but as far as I could tell, nobody else made one.

Here's the direct link to the video: https://www.youtube.com/watch?v=hoSmO1XklAQ

I hereby challenge you to make a "How I Solved It" video and post it here. If you make one, I'll make another one.

Ned Gulley
上次活动时间: 2024-6-25

What's your opinion of the Ans Hack?

The Ans Hack is a dubious way to shave a few points off your solution score. Instead of a standard answer like this

function y = times_two(x)
  y = 2*x;
end

you would do this

function ans = times_two(x)
  2*x;
end

The ans variable is automatically created when there is no left-hand side to an evaluated expression. But it makes for an ugly function. I don't think anyone actually defends it as a good practice. The question I would ask is: is it so offensive that it should be specifically disallowed by the rules? Or is it just one of many little hacks that you see in Cody, inelegant but tolerable in the context of the surrounding game?

Incidentally, I wrote about the Ans Hack long ago on the Community Blog. Dealing with user-unfriendly code is also one of the reasons we created the Head-to-Head voting feature. Some techniques are good for your score, and some are good for your code readability. You get to decide with you care about.