I have an array that uses a for loop to make the array with an input number of values. This represents a value per month. I need to graph this per year, and I do not know how to turn the months into years.

I thought of doing another for loop but I just can't figure out how to do it without knowing the amount of months

How to access?

I create New a count but the , say:You have reached the maximum number of emails that you may send. Try again later or contact Customer Support., how to make access

Kia ora! First, this is my favorite software for all things. With this being said, I am garbage at programming. Is there a straight-forward way to construct 3d projection of hypercube in MATLAB?

I don't know how to do it 😭 but I have interest on ev side can anyone help me

I’ve got the latter 50% of the Simulink on-ramp to complete by noon tomorrow. The content? Simple. The problem is that when I get to a certain task, one where you have to change the value of a constant to 10*0.25, it cries, and my keyboard stops working for Simulink as a whole. Just ceases to work. If it does work, a key spams indefinitely. Only solution I have is to force restart. Even then, it’s a 50/50 whether it’ll work again. Any solutions?

We had fun building games. Here is mine https://www.mathworks.com/matlabcentral/communitycontests/contests/10/entries/16574

Hi everyone

Here's a screenshot of MATLAB and Simulink running natively on my Raspberry Pi 5 courtesy of the new MATLAB for Linux ARM beta that we released this week

In my latest article, I discuss this new beta; how you can install it directly or in Docker / Apptainer containers and show some performance issues on DGX Spark and Raspberry Pi that I've reported to development.

Running MATLAB natively on Raspberry Pi and DGX Spark: MATLAB on Linux ARM is now in open beta | The MATLAB Blog

I know that many of you have been waiting for this for a long time so please head over, take a look and let us know how things look for your workflow.

Cheers,

Mike

I have my undergrad project presentation tom... Is there any way to embed Simulink in slides so that I can show the working & explain blocks ?

Modelled a hydraulic actuation system, was wandering If I can just embed in slides & avoid reopening a second laptop

I’m just beginning to model and simulate stuff in MATLAB simulink so i need to model a low inertia grid for my minor project ( like more inverter based sources less rotating generators) I’m really struggling as I don’t know how to start n proceed I don’t even know if I’m going in the right direction 😭 pls help me even little inputs are welcomed 🥰🥰

So far, the Lunar Lander - Tap to Burn is the top entry. KOI is the close second, Pump-Send: A Mountain Bike Adventure in the 3rd place.

Play the games and vote for your favorites! https://www.mathworks.com/matlabcentral/communitycontests/contests/10/entries?week=all

I've tried to replicate the tomato growth model in this article (https://www.researchgate.net/publication/393702875_Dynamical_Modeling_Using_Internet_of_Things_of_Nutrients_N-P-K_for_Vegetables_Optimum_Production) with Google Sheets. As far as I can tell, I've transferred everything in the article to my Google Sheet, but I'm still ending up with values that are magnitudes above the ones described in their graphs. Am I missing something? Is there something MATLAB does automatically that I've neglected to replicate in my Google Sheet? (Here's a link to my Google Sheet if anyone has the time/energy to read over that; although I've used several named functions, so it's a bit of a mess... https://docs.google.com/spreadsheets/d/1vCKXB04qaMSihZ8ISPF2fsiftowwSeUYLIEyYP-6-KA/edit?usp=sharing)

I understand the premise of this problem. We just learned how to use fminbnd, and for this problem in particular the clear path ahead is to define an anonymous function V = @(h) such that V is the volume of the solid and h is our input height. Using the negative volume we can use fminbnd to find the max volume as well as the value of h needed to output it.

I came up with V = @(h) -120*(70*h + 35^2)

(70*h is the area of the rectangular face without the triangle, 35^2 is the area of the triangle

At this point something is fishy. h is clearly unbounded with my (supposedly) incorrect formula for volume. I am staring at this solid and picturing h increasing to infinity and I don't see how this is even an optimization problem. The volume appears to increase indefinitely as h does.

edit: I see now that I was thinking about the problem incorrectly. I thought the top width was fixed at 70 in. I think what it actually means is that if we were to unfold this thing and measure across we would measure 70 in.

In Function.m I have

function Function(a)
arguments
a (1,1) double {Validator(a)}

end
printValue(a);
end

function Validator(a)
arguments

a (1,1) double
end
if mod(a,7)
error("Invalid argument.");

end

end

function printValue(a)
disp(a);
end

I want to further restrict the visibility of Validator such that it can be called only by Function. I tried to make Validator a nested function of Function, but MATLAB throws me the error "calling nested functions is not supported in arguments blocks". So how do I restrict Validator to be called only in Function and not in other local functions from Function.m (like printValue)?

Edit: sorry for formatting, but Reddit ignores spaces when I write code.

https://github.com/AxelBoularot/6DDL_TVC

Hi Everyone,

I'm working with the official MathWorks DVB-RCS2 link simulation example in MATLAB R2026b, specifically the TC-LM (Turbo Coding with Linear Modulation) transmission format.

Official example: https://www.mathworks.com/help/satcom/ug/end-to-end-dvb-rcs2-simulation-with-rf-impairments-and-corrections-for-tc-lm-bursts.html

While testing different waveform IDs, I've observed the following issues:

1. Some waveforms are not passing at all

Certain waveform IDs consistently fail to achieve successful decoding, even when using the default simulation configuration.

2. Index-out-of-bounds errors at low E/N

For some waveform IDs, the simulation throws an index-out-of-bounds error at lower E/N values and terminates instead of completing the PER evaluation.

3. Significant gap between specification and simulated thresholds

There is a noticeable gap between the E/N thresholds specified in the DVB-RCS2 specification and the thresholds achieved by the MATLAB example.

I'd like to understand whether this is an expected result of the example or whether there could be an issue with the waveform-specific receiver processing, synchronization, or implementation.

4. Satellite channel modelling

The example includes AWGN and selected RF impairments, but I haven't found a complete satellite propagation channel model integrated into the simulation.

I'd like to understand the recommended approach for incorporating realistic satellite channel effects, such as Doppler, propagation delay, and other relevant impairments.

Questions:

1. Has anyone tested the different supported TC-LM waveform IDs using this official example? Are there any known issues with particular waveform IDs?

2. Are the index-out-of-bounds errors at low E/N known issues, particularly when burst detection or synchronization fails?

3. Has anyone validated the PER-versus-E/N performance of this example against the DVB-RCS2 specification? Is a significant threshold gap expected?

4. Are there any recommended corrections or configurations to achieve performance closer to the specified thresholds?

5. Is there a recommended satellite channel model or approach for extending this example beyond AWGN and the included RF impairments?

I'd appreciate feedback from anyone who has worked on DVB-RCS2 TC-LM, satellite link-level simulations, or the MathWorks Satellite Communications Toolbox.

Thanks in advance!

Recently I have been trying to switch from my core electrical job to matlab is this ok for me

Give me some guidance.

Is this career switch good or not.

What is the future in Matlab

Is AI taking the job of Matlab Engineers

Please guide and help me

Dear all,

I've seen people attempt to do Advent of Code using ladder logic for PLCs or graphical programming environments, but I've never seen anybody do the competition using Simulink.

In preparation for Advent of Code 2026 I decided to do Advent of Code 2025 in Simulink, using only Simulink blocks, no Stateflow or MATLAB function blocks. I managed to solve all challenges using block diagrams, with the exception of Day 10 Part 2, where I used `intlinprog`. I think most people used a library for that day.

The solutions are not universal and some of them are tailored to my inputs, but if anybody is interested, they can be found here: https://github.com/ptoshkov/aoc-2025-simulink

For the 2026 edition I will attempt to make cleaner universal solutions and I will try not to use any MATLAB functions. Hope someone finds this interesting or inspiring.

Although I don't have experience with interviews on this programming language (because in short, in my country no research is done and you need Matlab only if your foreign client uses it), I fear that technical interviews on it are as easy to fail as when you apply for embedded position, but you only have experience with non RTOS embedded systems (I was even called unqualified for working on embedded systems).

Suppose a candidate has, for various reasons, experience only with old Matlab versions (like R2018b) and is asked things like:

1. "suppose you have a class path Foo, then you change the path to a directory containing a class path Foo; will existing instances of Foo be updated?"

2. (although just recently changed) "suppose you have in path folderName1/Foo function and folderName2/@Foo/Foo class. Which one is called? The function or the class?"

3. is asked what will happen if it runs a code like the one from "Identifiers cannot be used for two purposes inside a function" example from "Update Code for R2019b Changes to Function Precedence Order" page

4. the candidate messes up thing regarding "Implicit default value for properties whose class is an enumeration based on numeric or logical values".

I fear that it is very easy for a candidate to fail on such technical questions. Even though the candidate knows how things behave on his old Matlab version, he/ she may not make the remark "on Matlab R_X version it works as I described", because he/ she may fear the observation would be interpreted as "you the interviewer are dumb; in my Matlab version, things are different". Plus, even if he/ she makes the remark, the one interviewing may very well not look how things are in that version and apply the logic "I don't know what he/ she is talking about, nor do I know what happens if I run these codes in his/ her Matlab version, so in conclusion, the candidate is wrong". (The aforementioned logic happened to me multiple times when I discussed my experience in non RTOS embedded systems; everyone thought I made things up.)

And even if the one interviewing may trust the candidate sayings, they may still reject him/ her, because he/ she is not at current with later Matlab versions. In theory, it can be said that if the candidate knows Matlab for Y years, he/ she is able to make the transition to newer versions (aka learn the changes and the new features). In practice and in my experience, employers think different to say the least.

Same things can happen if you are at current with newest Matlab features and programming behaviours, but be rejected from an employer which uses older Matlab versions. In short, the employer doesn't know what you are talking about, so you are wrong.

How would you react if a candidate is speaking "another Matlab" language than you are? If you use the newer Matlab releases, but the candidate knows older Matlab versions, would you take them? And similar, if you, the employer, use older Matlab releases, would you take a candidate which only knows the newer Matlab versions?

Hi, I want to add helium properties from coolprop to thermal liquid settings block. Is there an easier way to do this, maybe by a direct call to coolprop in the block? Currently I have a script to make a table of properties and then manually copying it into this block.

Is anyone else having trouble logging into a personal MathWorks account through the website(MathWorks Account Sign In)? The sign-in button simply doesn't respond when I click it. I've tried different PCs and networks, but the same thing happens. After repeated attempts, it eventually redirects me to a password reset prompt. This issue has been going on for several days.

Any ideas on how to fix it? Thanks!