Uno scambio aperto per le Community degli utenti di MATLAB e Simulink
Why do I get the 'We have detected suspicious behavior' prompt? kA03q0000015O7gCAE 000184625
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This example project can be used as a reference design to get started with designing Battery Management System with MATLAB and Simulink.
Online optimization of energy storage actions in a microgrid given system constraints and pricing
An algorithm for manifold learning and dimension reduction.
I'm trying to write an equation with e, but I assume it would just take it as an undeclared variable.
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MATLAB/Simulink Based Modelling of Solar Photovoltaic Cell, Panel and Array
PID controller simulator on an LTI system w/ or w/o input delays
MATLAB-Simulink model of IEEE 33 Bus System (Baran and Wu, 1989)
Learn how to deploy an algorithm to an FPGA using MATLAB and Simulink.
BESS are commonly used for load leveling, peak shaving, load shifting applications and etc.
Rad/s is nice for mechanical people, but I'm an EE, and I much prefer Hertz. It should be something simple, but I can't find it in the help.
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Simscape electrolyzer converting water and electricity (wind/solar renewable sources) into H2 gas. Alkaline technology included.
Cynthia Brewer's ColorBrewer palettes, ported to MATLAB, with nice interpolation.
Hello, i am trying to make a bode plot of the transfer function of a twin-t notch filter, that i am analyzing. I was able to produce the transfer function, and the bode plot by hand, but i am struggling to do it in Matlab, here is what i have so far: r=320; %Resistance c=100*10^-9; %Capactiance p=(...
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Virtual labs and mechanisms for studying controls.
Example files for MATLAB and Simulink Robotics Arena walking robot videos.
I'm using Dell precision 7510 with preinstalled Ubuntu 14.04(I have the driver the NVIDIA). I just downloaded the MATLAB R2017a and I run into the following error. I just searched and found it's not just me who have the same problem. I wonder if this problem is fixable? To put it in another...
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I am trying to find zero-crossings of a function in Matlab and plot the points where zero-crossing occurs. However, i am not able to find an easy way. I tried and Matlab fnzeros, but i can't understand the spmak and x,y used in these function. The function for which i want to find zero crossing...
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In this model, a Microgrid test system based on the 14-busbar IEEE distribution system is proposed.
When I plot the frequency domain the power is not 3 and 5 as I expect. I read the documentation for fft() and cannot figure out how to normalize my fft properly. Can someone explain the procedure to normalize the cosines and a Gaussian wave? Thanks clear all; %generate the signal t = 0:1/2000:.02; ...
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I want to ask the user if they want to EXP1 or EXP2. If the user enters '1' or '2', then I want to display "running exp 1 or 2", otherwise I want the program to display error message until the user enters '1' or '2'. prompt = input('Please enter 1 for E...
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Hi, Community I wanna ask about how to do a Gaussian Filter in just 1D data.... So i have a data vector based on time series like this : And i want to filter the data by using Gaussian Filter. So, Anyone, How to do that? Thank you so much....
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Hello i have a 54000 x 10 matrix i want to split it 70% training and 30% testing whats the easiest way to do that ?
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I have a histogram that I want to plot just as a simple line plot. I have tried: h = histogram(speed,'Normalization','probability') plot(h) But then I got an error message: Not enough input arguments. Does anyone know how I can do it? Many thanks!
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A minimum length 2D planar bell nozzle is designed using MOC
I am a python programmer and new to Matlab. Therefore, facing some basic issues. Please help me out with this. I am pasting my code here. Error Message: Index in position 1 is invalid. Array indices must be positive integers or logical values. Error in spectrum_uncompressed (line 30) X_per_bartlett...
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How can I plot this state space like the graph I attached by using tf() and step() command? Thank you! I2/E0=1/(s^3+s^2+3*s+1)
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The modal parameters of a line-like structure are automatically identified using an SSI-COV algorithm applied to ambient vibration data
Fast 2D phase unwrapping implementation in MATLAB
In this post, I will discuss robot modeling and simulation with Simulink®, Simscape™, and Simscape Multibody™. To put things in context, I will walk you through a walking robot example (get it?).
I need to convert my matrix [648x2400 double] into integers value to use a mRMR function, but I do not know how to do that. I have tried to convert by uint8(matrix) or int8(matrix) but it does not give integers... And I always have this note: "Undefined function 'mrmr_mid_d' for input ...
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In today's blog, Khushin Lakhara from the Student Programs team at MathWorks will explore the concept of sensitivity analysis and its significance in engineering design. Over to you, Khushin... For this blog, our attention will be on the student competition score function, especially competiti...
A toolbox for the computation of the Fast Marching algorithm in 2D and 3D.
this is the QAM modulation and demodulation tech. with speech example
abfload imports data in the Axon abf format (three different recording modes).
Hi I've a question about matlab simulink when I run a code, there are message "MATLAB cannot run this file because c:\~~~ shadows it. delete shadowing file and try again" what's the problem? And why this happen??
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Model of PMSM
How can I download 2011b version of MATLAB?
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This keeps coming up as an error, what am I doing wrong? prompt= 'State your name, Your Grace '; name=input(prompt);
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I'm new to MATLAB and am still getting used to the workspace. When I open a new file or script, it always comes out in a new window. How can I get it to be opened in the same window as the commands? Thanks!
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Let's say I am working in the directory: /home/username/Matlab/ I want to save (in a script) the directory one above the one I am working in (to use it later in the script), so: newdir='home/username'; But I am working in different computers, so the 'username' changes, thus I wa...
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Hello , I want to concatenate string and number in for loop requestID = Req_Check; for k = 1 : 10 requestID = requestID +1; end I am expecting requestID after for loop like Req_Check_1, Req_Check_2 ...Req_Check_10 How can I do this?
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Given a matrix, swap the 2nd & 3rd columns If a = [1 2 3 4; 1 2 3 4; 1 2 3 4; 1 2 3 4];then the result is ans = 1 3 2 4 1 3 2 4 1 3 2 4 1 3 2 4Perform a simple swap of the two middle columns. %%x = [1 2 3 4;1 2 3 4;1 2 3 4;1...
I have two categorical column vectors of size 872-by-1. I want to calculate the Levenshtein distance between these two. When I am using the command 'editDistance' for this I am getting an error as "Argument 1 must be a string array, a character vector, or a cell array of character vect...
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y25=[1.875000000000000,3.046875000026040] How can I add 0 (zero) to the beginning of this array? I want to get the array y25=[0,1.875000000000000,3.046875000026040] Thank You.
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My code so far is below. I have the code so that it skips the first 19 lines and starts at line 20. However, I need to remove the NaN values that are in my data like Columns = [10;0.04500;0;NaN;NaN] for example. The line I have to remove the NaN's runs, it's just not removing them. I'm ...
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HVDC system with three level neutral-point clamped VSC
Generate an image pyramid or reconstruct from a pyramid.
Wilkinson's polynomials are a family of polynmials with deceptively sensitive roots.
Remove the small words from a list of words. Your job is to tidy up a list of words that appear in a string. The words are separated by one or more spaces. Remove all words that are one or two letters long and make sure that exactly one space separates all the words. Strings will be made up only of ...
Assuming I have the forward velocity, rotational speed of the propeller, how do I insert these constants as signals to determine the output thrust? Is there a tutorial video I can follow to properly learn how to use this block?
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在SIMULINK中，该模型中含有扰动吗？如果有请问怎么使用除了设计观测器的方法测量，如果没有请问怎么添加扰动并且测量？
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Error using trainNetwork Invalid training data. For classification tasks, responses must be a vector of categorical responses. For regression tasks, responses must be a vector, a matrix, or a 4-D array of numeric responses which must not contain NaNs. %Data_Pipeline clc, clear, close all % Speci...
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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. Wondering where your CPU cycles went? Check AI. macosx ai
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I'm trying to do a silent installation of polyspace 2024b in linux: ./install -inputFile path/installer_input.txt The installation is successful, but when I try to run a command like: ./polyspace-bug-finder -sources file.c I get the following error: License Manager Error -96 ...
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I've created a GUI for a research study where I want participants to listen to multiple different audio files. The way the GUI works is that when I press the "Play" button it plays the audio file....
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The GCD approach to identify rough numbers is a terribly useful one, well worth remembering. But at some point, I expect someone to notice that all work done with these massively large symbolic...
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Yes, some readers might now argue that I used roughness in a crazy way in my last post, in my approach to finding a large twin prime pair. That is, I deliberately constructed a family of integers...
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How can we use roughness in an effective context to identify large primes? I can quickly think of quite a few examples where we might do so. Again, remember I will be looking for primes with not just...
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What is a rough number? What can they be used for? Today I'll take you down a journey into the land of prime numbers (in MATLAB). But remember that a journey is not always about your destination, but...
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This work develops a novel fuzzy adaptive forensic-based investigation algorithm (FAFBI)
A new metaheuristic algorithm for global optimization called RRTO (RRT-based Optimizer) is proposed in this study.
This project is using "Large Language Models (LLMs) with MATLAB", to demostrate how two AIs are fighting.
This paper proposes sixteen enhanced aquila optimizers with multiple strategies, and used to benchmark functions and six classic engineering
This repository contains MATLAB implementations of design patterns, inspired by the book Refactoring.Guru. The scripts were prepared using C
Econometric modeling is essential for analyzing economic data, making forecasts, and informing policy decisions, however, traditional approaches often require extensive coding expertise, making them inaccessible to many economists and analysts. With the Econometric Modeler app in MATLAB, you can bui...
Generative AI has become one of the most influential trends of recent years, powering tools like ChatGPT and Copilot that have transformed how we live and work. Beyond these domains, generative AI is also reshaping industries, and robotics is no exception. At MathWorks, we are excited to explore how...
In the world of Analog/Mixed-Signal Integrated Circuit (IC) design, transfer functions have long been the go-to method for representing and analyzing linear time-invariant (LTI) circuits. However, this traditional approach comes with its own set of limitations: Single-Input-Single-Output (SISO) Lim...
This week I received a series of interesting questions on the basics of putting together a simulation of a control loop involving a Simscape continuous plant and a discrete controller. The questions are summarized in this image:Here are my answers to those questions.Discrete ControllerI recommend im...
Today's guest blogger is Francesco Bellucci, a PhD student in Mechanical Engineering at Department of Industrial Engineering of the University of Bologna. Francesco has a passion for helping young minds and has been actively involved in mentoring a team of young students, aged 13-14, from a se...
You recently bought an electric kettle for your kitchen, and you want to estimate how much it costs to run every month. The kettle operates at 230V and consumes 2000W (or 2kW) when in use. You...
A voltage divider is a simple circuit used to obtain a reduced voltage from a higher voltage source using two resistors in series. The output voltage (Vout) is given by the formula:Where:Vout is...
In an electrical circuit, the current (III) flowing through an LED is determined using Ohm’s Law:Where:I is the current in amperes (A)V is the supply voltage in volts (V)Vf is the forward voltage...
The energy (EEE) stored in an inductor is given by the formula:Where:E is the energy in joules (J)L is the inductance in henrys (H)I is the current in amperes (A)Write a function that takes...
Almost immediately after the DeepSeek-R1 AI models were made available to the world, people started asking how you can use them in MATLAB. Late last week, Vasileios Papanastasiou, a software test engineer at MathWorks, posted how to do this on LinkedIn and this morning I tried out his instructions f...
Try new Beta features to create, visualize, and run pipelines for machine learning workflows.
On 3 of my students' laptops that have Matlab installed, regardless of whether I use the publish function in the Command Window, or the publish tab at the top, I cannot get Matlab to generate a pdf. It gives me the same error on all 3 laptops: Error using mlreportgen.re.internal.xml.transfor...
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This curriculum module contains interactive examples that teach fundamental concepts of power electronics.
This topic is for discussing highlights to the current R2025a Pre-release. R2025a Pre-release highlights One of the changes is the built-in support for Dark Mode and Themes. Personally I find Dark...
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In this blog post we are going to show you how to use the newest MATLAB functions to: Import models from TensorFlow and PyTorch into MATLAB Export models from MATLAB to TensorFlow and PyTorch This...
Everyone's talking about Large Language Models (LLMs) and a huge number of you are using them too. Here are 4 ways to make use of them in the MathWorks ecosystem right now, no matter what your skill...
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During an online meeting with my colleagues in Boston yesterday, some of them were rather startled when their offices started violently shaking for a brief time! We quickly hopped onto BlueSky (Feel free to follow me there) where we saw thousands of messages referring to what everyone suspected was ...
Back in April last year, I announced the MATLAB extension for Visual Studio Code on The MATLAB Blog and everyone at MathWorks was blown away by its popularity. In less than a year there have been...
This model demonstrates an ESS powered by solar which integrates renewable energy sources with an efficient battery storage mechanism
In the past two years, large language models have brought us significant changes, leading to the emergence of programming tools such as GitHub Copilot, Tabnine, Kite, CodeGPT, Replit, Cursor, and many others. Most of these tools support code writing by providing auto-completion, prompts, and sugg...
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You've probably heard about the DeepSeek AI models by now. Did you know you can run them on your own machine (assuming its powerful enough) and interact with them on MATLAB? In my latest blog post, I...
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Vehicle templates with multibody suspension and electric powertrain sized for Formula Student competitions.
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...
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Starfish Optimization Algorithm (SFOA) is a novel bio-inspired metaheuristic for solving optimization problems.
Remove the row that contain the max value in the matrix?If you like the problem, please like it :) %%x = [1 2 3 4 5 6 ...
Hello, I have been encountering several times a day for a few weeks an error when updating my data stored on Thingspeak (computerized hive parameters). The return code of my Arduinos is 211! But I...
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Remove the row that contain the min value in the matrix?If you like the problem, please give it a like:) %%x = [1 2 3 4 5 6 ...
Remove the column that contain the max value in the matrix?If you like the problem, please give it a like:) %%x = [1 2 3 4 5 6 ...
I have matrices A (m by v) and B (v by n). I also have a logical matrix L (m by n). I am interested in, as efficiently as possible, calculating only the values in A * B that correspond to logical...
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Remove the column that contain the min value in the matrix?If you like the problem, please give it a like:) %%x = [1 2 3 4 5 6 ...
Delete rows with specific properites as following:Find rows that have a negative value in any element of the row and delete it.Check if the last element of the row is equal of bigger than 24 and...
I want to fit the interpolation values of a spline, but I can not provide a good guess for the upper bound of the interpolation domain. That is, x(end) is so to speek an unknown too. The value of the...
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I have been trying to calculate the bubble velocity using the MATLAB code attached below. However, the velocity computed from the video appears to be significantly lower than expected. My goal is to compare the results with the analytical solution, but the discrepancy is quite large. Could you pl...
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