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How can I find the FFT of a time series when the samples are not equally spaced?
These days you use nufft

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warning all the time, don't know what is wrong
The 0^n and 0^(m-1) occur because there are not constraints on m and n, so there is the possibility that 0^0 is being generated,...

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How to import multiple csv files into a single appropriate data structure for processing and plotting
Use outerjoin

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Is there a MATLAB's supercomputer the registered user can use to run numerical simulations?
You can use Amazon Web Services, or Azure https://www.mathworks.com/solutions/cloud.html

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How can I simulate an ultrasonic sensor in combination with 4 MEMS microphones
Depending on the exact MEMS device, you will need to connect the MEMS to either an I2C or a digital input pin, of a device such ...

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Failure in initial objective function evaluation. LSQNONLIN cannot continue.
%%%% code for biggest astroid possible %%% This example shows how to do the inverse kinematics for a 2 link manipulator and do ...

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Plot multiple maps with transparency using raster data
% load the 3-D data load var_slice.mat load lat.mat load lon.mat % plot for K = 1 : size(var_s...

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Error using horzcat Dimensions of arrays being concatenated are not consistent
test = readtable('test.csv'); col_test = [(double(test.u_id(:))), test.score(:)]; %remove 1st entry col_test_update = col_t...

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Use for loop to assign zeros function to a variable size array
Nz = 200; number = 4; IC = zeros(number, Nz*2);

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How to create a series of separate tiff files?
Your filename includes a colon . colon is not a valid character in a filename for Windows (other than for drive letter) or MacOS...

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estgeotform2d Not all transformType arguments are available?
You are looking at the R2024a documentation, but you are using R2023b. (That and the fact that the R2024a documentation misses ...

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error using importONNXNetwork, importONNXNetwork cannot be called from compiled applications.
The issue is that you are not permitted to call importONNXNetwork in a compiled application. You have to break the code into tw...

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Get UI object name
No. You are working with handles, and there are multiple names for the same handle. You can chase the Parent property to get the...

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my code is saying aren't matching on line 130-132
N=A'*A; C=A'*Y; Kh=N/C; N will be 6 x 6. C will be 6 x 1. The / operator requires that the matrices have the sa...

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How to implement new Latex Font in matlab?
There is no way (documented) to add latex fonts to most of MATLAB. There used to be an obscure way it could be done, but that wa...

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"Your license will expire in 12 days" appears. Even though I tried "/matlabcentral/answers/100222-why-do-i-receive-a-message-that-matlab-will-expire-in", the same appears
There is nothing you can do about this. The prerelease is going away soon. The official R2024a release will be pretty soon -- p...

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Help with making parfor loop work
First of all, you are permitted only one assignment into a variable indexed by your parfor loop. Having symTable(ii,1) = {curre...

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Is there a way to terminate integration when multiple events are triggered simultaneoulsy?
Adjust the isTerminal flag as all(TheExpressions < 0) or as appropriate.

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Help (f1) opens an empty window (R2023b)
It is probably worth experimenting with configuring the documentation to be stored locally. Preferences -> Help -> MATLAB Help ...

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Error using fittype for model evaluation
You cannot use nonscalar coefficients in the fit model. Your Fe2_plus and so on are nonscalar. The computing model is that the ...

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Does the Data Acquisition Toolbox, introduced in 2020A, have a similar fuction to "release(session)"?
No, just delete the daq object.

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Error (Unable to perform assignment because value of type 'sym' is not convertible to 'double'.)
PcT = zeros(length(thresh)); PcT is assigned as numeric zeros. F1 = int( PL(w)*f(w) * (1/(1+ U(T) * PA * B(i) * w^(-...

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Convert series of analytical solutions to matrix vector format
syms x I E0 B l C3 C4 C5 F kt V1 = int(1/2 * I * E0 * (1 + (B-1) * x/l) * (2*C3 + 6*C4*x + 12*C5*x^2)^2, x, 0, l); V2 = int(...

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Error using symengine Unable to convert expression containing symbolic variables into double array. Apply 'subs' function first to substitute values for
axes clear clc close all format short g ndofn = 3; % number of degrees of freedom per node % each number corresponds to a ...

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Error using Fseek. Invalid filer identifier, use fopen to generate a valid file identifier.
You attempt to open 45C.fid/fid but 45C.fid does not exist as a folder -- existing folder is 45temps.fid and 45meas.fid You sho...

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How can I process all the possible pairs of arrays without using 2 nested for loops?
if all(triu(FirstMatrix) == triu(SecondMatrix), 'all')

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what is wrong on my codes ? I can not get my result any one help?
You need A = eye(6); However, A*x <= b with A = eye(6) is equivalent to x <= b which is the same thing expressed by UB, so the...

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Error using plot Vectors must be the same length.
fs=500; t=(0:(6*fs-1))/fs; sygnal2a=sin(t(1:500)*1*2*pi); sygnal2b=sin(t(1:500)*1*2*pi+2*pi); sygnal2b is the same as sygn...

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MATLAB freeze after closing figures
This is a known problem with R2023b and Apple Silicon https://www.mathworks.com/matlabcentral/answers/710913-matlab-r2020b-free...

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How to optimise an objective function with a summation of integrals
x = lsqnonlin(@(x)(S(P,T,N,Limites_Sectores_T,x)), x0, lb, ub,[],[],Aeq, beq, options); There are a few different valid calling...

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