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How to convert color map into contour map?
YourImageArray = imread('Color map.jpg'); cropped_image = imcrop(YourImageArray, Crop_Rectange_Of_Image); cropped_colorbar = i...

5 months ago | 1

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Matlab support flexera 11.19.6.3 and Windows server 2019 Licensing server?
MATLAB R2024a is not officially supported on Windows Server 2019; the last release that was officially supported on Windows Serv...

5 months ago | 0

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what is the difference between pwd and cd ?
Both cd and pwd come from Unix. Historically cd in Unix was used to change directories, and had no ability to return the name o...

5 months ago | 1

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Simulink parameters change during simulation from Matlab cmd line
It is not possible to change the parametrs of the running Simulink simulation model from Matlab command line while the model is ...

5 months ago | 0

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Convert a decimal approximation to exact value symbolically
sympref('FloatingPointOutput',false); Will display an unevaluated int() form for your original problem, and will display 4/pi -...

5 months ago | 0

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compiled matlab script where incorrect variables are passing
Note that double('1') so somehow you are getting a quoted 1 instead of a numeric 1. I would suggest trying matlab -nodisplay...

5 months ago | 0

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solving a cubic equation
syms a b c d x sol = solve(a*x^3 + b*x^2 + c*x + d, x, 'maxdegree', 3) numsol = subs(sol, [a,b,c,d], [1.5, -2, 3/8, -5]) %...

5 months ago | 0

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How to write a timetable to excel with rowtimes as dates without times?
For MacOS and Linux, it is not possible to PreserveFormat . About the best you can do on MacOS is to convert the timetable to ...

5 months ago | 0

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error message 'The end operator must be used within an array index expression.'
It is likely that the error is in code before what was posted. For example, a(end)=1 This error occurs because end was used to...

5 months ago | 1

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Make MATLAB output in strict ASCII
Is there a built-in function to convert these occasional UTF non-ASCII characters to a reasonable approximation in standard ASCI...

5 months ago | 0

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Matlab sorting numbers oddly
You probably want to use https://www.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort The filename o...

5 months ago | 2

Answered
Fixing an old script containing JavaFrame / JavaContainer
All Java functionality associated with MATLAB figures is gone, never to return. jvi.setFigureIcon(ImageIcon(getfigureicon))...

5 months ago | 0

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Answered
Function not returning updated struct
When you create uicontrol, they are created and displayed (if appropriate), and then flow immediately continues onward without w...

5 months ago | 0

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Answered
How to rotate domain, but the lon and lat are on the contour (not on the axis)
You need to first calculate the tilt angle of the valid part of the data, then rotate by the negative of that angle so that the ...

5 months ago | 0

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Answered
Error using integral2Calc>integral2t/tensor (line 231) Input function must return 'double' or 'single' values. Found 'sym'.
h = 0.00172; rho = 1620; L = 100*h; c=L*L/4; M=10; N=10; syms xi eta shape_w=sym(zeros(M,N)); x_m=sym(zeros(M,1)); y...

5 months ago | 0

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Enable/disable on radio button in app designer
You can create app.bg as a uibuttongroup and populate it with uiradiobutton . Later, you can bc = [app.bg.Children]; set(bc(1...

5 months ago | 0

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Answered
Simulation run time vs. PC
https://versus.com/en/intel-core-i7-11850h-vs-intel-xeon-gold-6234 The core-i7 (laptop) is 10 nm compared to 14 nm is 35W p...

5 months ago | 0

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Offline Documentation for macOS AppleSilicon
This is a known issue; https://www.mathworks.com/matlabcentral/answers/2177941-why-am-i-not-able-to-download-the-macos-offline-d...

5 months ago | 0

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Answered
first order PDE , verification of one solution
syms x y real syms f(x_minus_y) v1 = diff(f(x-y),x) v2 = diff(f(x-y),y) ver = v1 + v2 simplify(ver) Which is not zero. I...

5 months ago | 0

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I can't connect the PWM generator G output to the active rectifier output in an EV on-board charging system design
Since you are talking about connecting a "G" gate, I deduce that your PWN block is "PWM Gate Signal Generator (Three-phase, Two-...

5 months ago | 0

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Precision lost when combining Int32 integers with single precision numerical numbers
The general rule is that when you combine numbers of two different types, that the result is the type that is considered more re...

5 months ago | 1

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Using parallel computing to communicate with device
F = parfeval(backgroundPool,@UpdateWeight,1,Scale); F is returned as a future object. % Setup Timer scale_timer = timer('Time...

5 months ago | 0

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concatanate arrays upon condition
At least in R2025a, there is no problem in using "," to concatenate empty datasets, as long as they are empty along either the f...

5 months ago | 0

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how can figure renderer be changed in Matlab 2025a?
The figure renderer cannot be changed in R2025a. This is a fundamental change in R2025a, that OpenGL is no longer used and WebGL...

5 months ago | 0

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Found unsupported division expression for HDL code generation; Signed input data type is not supported for division with Floor RoundMode, at Function 'mod'
You should be doing range reduction. sin(x) for negative x is -sin(-x). You could do something akin to if x < 0 x = 2*pi -...

5 months ago | 1

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Mass importing .txt files with sequential names to plot multiple graphs on same figure for easy comparison
N = 30; files = "FreeField" + (1:N) + ".txt"; S = cell(N, 1); for K = 1 : N S{K} = readtable(files(K)); end for K ...

5 months ago | 1

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Answered
New MATLAB user: Rosetta 2 or Parallels for Apple M1 MacBook pro?
As of R2023b, MATLAB has had a native port for Apple Silicon series (ARM CPU)

5 months ago | 1

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Simulink Matlab Fcn, logical error for incrementation in Goertzel's algorithm
count=single(0); That statement is executed every time the block is executed. You need persistent count if isempty(count); c...

5 months ago | 0

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sprintf vs. compose performance for large arrays on macOS
My understanding is that compose is based on sprintf That is not correct, at least not directly. compose() selects elements "...

5 months ago | 1

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How can we identify the type of traffic in wireless communication?
Uniform distribution (0–180 ms) That is obviously not bursty. Exponential (mean: 180 ms) First we need to calculate the multi...

6 months ago | 0