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where is SupportSoftwareInstaller.exe in Matlab R2025a
It sounds like you are using Mac, as SupportSoftwareInstaller is still available for Windows and Linux. See https://www.mathwor...

1 year ago | 0

Answered
Help with nested for loops
Vectorized version with no for loops: Duse=[D1_0, D1_1, D1_2]; %Array for D-values Kuse=[K1_0, K1_1, K1_2]; Quse=[Q1_0, Q1_1,...

1 year ago | 1

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The code indicates error with response Invalid value for OPTIONS parameter Algorithm
quasi-newton is a valid option for fminunc but not for fmincon See https://www.mathworks.com/help/optim/ug/fmincon.html#busog7r...

1 year ago | 0

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Why does my code return 'Empty sym: 0-by-1'?
You have misframed k = k0 * exp(-Q/(R*T)) . Written as an equation equalling 0, it would be eqn = k - k0 * exp(-Q/(R*T)) == 0 ...

1 year ago | 1

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Answered
How to store this type of data with unknown number of them?
Let us experiment N = 100; A = randi(9,N,1); B = randi(9,N,1); C = randi(9,N,1); D = cell(N,1); for K = 1 : N D{K} = ...

1 year ago | 0

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Answered
Transform variables with underscore symbol into subscripts when exporting to Latex from a Live Script
The key to this is that the left-hand side of an assignment is never formatted. syms t A B f_0 f_1 n positive eqn = f_1 == f_0...

1 year ago | 0

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datetime error in 2025a version
'convertfrom' 'datestr' is not a supported option https://www.mathworks.com/help/matlab/ref/datetime.html#d126e368859 If you ...

1 year ago | 0

Answered
use "set" with trasparent color
Line objects have never supported MarkerFaceAlpha or MarkerEdgeAlpha MarkerFaceAlpha and MarkerEdgeAlpha are used for Scatter p...

1 year ago | 1

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Does sendmail work with TLS v 1.2 ?
https://www.mathworks.com/help/matlab/ref/sendmail.html Note sendmail does not support major email providers such as Gmail an...

1 year ago | 0

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Codegen supported function to delete a file and to check its existence
I believe it would go as follows: C: Use coder.cinclude('<stdio.h>'); coder.ceval('remove', FILENAME); C++: Use coder.ci...

1 year ago | 0

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Answered
can display .mat files into gui matlab?
Generally speaking, you cannot display .mat files in a GUI. .mat files generally contain collections of variables, but you can g...

1 year ago | 0

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Excel to Simulink real time data streaming
In the form you have phrased the question, it must be assumed that a random location inside the data might be updated (as oppose...

1 year ago | 0

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Answered
Plotting color data from cell array using plot()
plot(xdata{:}, ydata{:}) is equivalent of plot(xdata{1}, xdata{2}, ydata{1}, ydata{2}) which is going to treat the data as pa...

1 year ago | 0

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Answered
How do I find second order implicit differentiation (d2y/dx2) of a function in MATLAB
syms x y DY DF y(x) F=x^2+y^2==1; dy=diff(y); dx=diff(F,x); DF=subs(dx,dy,DY); dydx1=solve(DF,DY); dydx=simplify(dydx1) t...

1 year ago | 1

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how to save the debugging state at matlab?
Generally speaking, it is not possible to save the full debugging state. Generally speaking, the current state of variables mig...

1 year ago | 0

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I want to remove noise from my audio signal by simplest method?
Suppose you have an input signal that starts with 0.1 and 0.2. Suppose you add noise to the third sample onwards, and after addi...

1 year ago | 0

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Need help debugging given matlab code for school assignment. Recieving weird error need help moving past
b = load('blade.txt'); %Blade specification is modified NREL 5 MW b will generally be a matrix r = b(:,1); %Node radial positi...

1 year ago | 0

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Help fixing fopen error in code
filename = fullfile(files(cntfiles).folder, files(cntfiles).name); [fin, msg] = fopen( filename ); if fin < 0 erro...

1 year ago | 1

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If I replace old version (R14) running on a 20 y.o laptop with Windows 7 with all new laptop, newest Windows and latest Matlab version, will my old toolboxes still be useable?
R14 was long enough ago that Mathworks would not permit you to pay retroactive Software Maintenance Service to bring your licens...

1 year ago | 0

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Question

MATLAB Answers is currently broken
MATLAB Answers is currently undergoing an unspecified down-time. Mathworks knows about the problems and is working on solving i...

1 year ago | 0 answers | 6

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answers

Answered
Can you help us debug and fix this code entirely?
You can get nearspeech.mat and farspeech.mat as part of the example openExample('audio/AcousticEchoCancellationAecExample')

1 year ago | 0

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Is vectorization worth the trouble with recent MATLAB?
Let us take an example: finding the row indices of the first non-zero row in a 2D matrix. A = full(sprand(10000,500,0.1)); Loo...

1 year ago | 1

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Creating a License manager for a MATLAB app
Mathworks does not provide any particular interface to license managers of any sort. It just provides methods to call external f...

1 year ago | 0

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Filtering column 2 and keeping column 1
mask = filteredData >= THRESHHOLD; selected_time = rawData(mask,1); selected_filtered_data = filteredData(mask); However, i...

1 year ago | 0

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Chase plot changes figure size internally
frame2 = getframe(ax2); writeVideo(vidObj2, frame2); You are fetching graphics data from an axes. It turns out, howeve...

1 year ago | 0

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Answered
The problem is that when I use vpa(U(x,t), 7) to get the solution with 7-digit decimal precision, MATLAB still outputs a very long and complicated expression. how do I fix it?
Observe: a1 = vpa(sym(pi), 7) a2 = vpa(a1, 10) a3 = vpa(a2, 15) a4 = a3 - pi double(a4) From this we deduce that vpa() co...

1 year ago | 0

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How to avoid scientific notation in stackedplot?
h = stackedplot(....); oldstate = warning('off','MATLAB:structOnObject'); hstruct = struct(h); warning(oldstate); arrayfun(@...

1 year ago | 0

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Adding a circle in a 3D surface plot, viewed in 2D
If you are using fplot() then you need to ensure that some of your Z values are below 0 in the region you are drawing the circle...

1 year ago | 0

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Answered
fixed color scale with volshow
After you getframe(fig) use rescale() specifying "InputMin" and "InputMax"

1 year ago | 0

Answered
Aquiring images from mobile camera is too slow
Possibly. You might be able to use the IP Camera support Android: https://www.mathworks.com/help/matlab/supportpkg/acquire-imag...

1 year ago | 0