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How can I plot different curves for the function val?
See attached. What is plotted is the difference between the first line and the other lines. The maximum difference is on the ord...
2 days ago | 0
Showing markers to plot legend
There are two closely related ways to handle this. faun.age = [5 7 4 9]; faun.depth = [2 3 4 3]; figure(1) p = plot(faun.a...
3 days ago | 0
Write matrix/table to text files without changing checksum
If you need to be absolutely certain that the data is represented exactly: writematrix(compose("%.751g", TheMatrix), FILENAME, ...
4 days ago | 1
How to use fprintf with cell arrays in MATLAB R2026b
data = { 'Alice', 24, 'Engineer'; 'Bob', 30, 'Doctor'; 'Charlie', 22, 'Student' }; dataflipped = data.'; fpr...
4 days ago | 1
MATLAB prints ''Greek letters'' in chart text, but how about sprintf, compose, string or char functions?
It depends on how new your MATLAB release is, and (for sufficiently old MATLAB) which operating system you are using, and which ...
7 days ago | 1
How can I capture all outputs in a cell array, if the function uses varargout and the number of outputs is dependent on the function parameters.
Let us create a function whose number of outputs depends on the number of input arguments: D = zeros(2,3,4); fun = @size; ...
29 days ago | 0
Find angle from equation has sin(theta)/theta
Q = @(v)sym(v); noarc = Q(5); SoR = Q(604611392)/Q(10)^10; syms thetaV %%%%%%%%%%%%%% I have This equation %%%%%% % ...
1 month ago | 0
I have an individual license that lets me use Matlab on up to four computers in my lab. Can I use a computer in Japan?
You are required to get permission from Mathworks Support to use your license outside the region it was purchased for. What Mat...
1 month ago | 0
My problem of sequence
Your target vector is length 35. You have defined your matrices as having rows of length 30. It is not possible for a matrix of ...
1 month ago | 0
I have the macOS version, I will also need a windows version to run on parallels. Can I obtain a windows version?
See the instructions I posted at https://www.mathworks.com/matlabcentral/answers/1810545-download-matlab-2014-a#answer_1348112 (...
1 month ago | 0
Is There Any Practical Difference Between Extraction and Deletion When Reducing a Vector?
format long g X = rand(1,10000); to_delete_unsorted = randperm(width(X), 20); to_delete_sorted = sort(to_delete_unsorted); ...
1 month ago | 0
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Is it More Efficient to Load a Subset of Variables from a .mat File Rather than All of the Variables?
Experimentally, loading the entire file at once is faster. fname = 'matfile.mat'; temp = [ cellstr(reshape(string(['a':'z...
1 month ago | 0
How to access elements with same field names in an array of structures without using a loop?
You could possibly work something up using cellfun with a subsasgn call, but it would be ugly and needlessly complex.
2 months ago | 0
Problem making it past line 8 - no error given
It is not taking a long time to compute the symbolic solution at each t: it is taking a long time to display the symbolic soluti...
2 months ago | 0
InstallForMacOSX.app doesn't work on Mac Tahoe
MacOS Tahoe was the last MacOS supported on Intel Mac. R2025b was the last MATLAB supported on Intel Mac. If you are trying t...
2 months ago | 0
Saving large mat-files 2-4 GB takes 1 or 2 min. how to do things in paralell?
There are no functions that are defined to write .mat files asynchronously. There are potentially differences in how quickly a...
2 months ago | 0
Why Does sym(cell) Not Return a Cell?
If I recall correctly, historically it had to do with the way that arguments used to be constructed for the internal conversion ...
2 months ago | 0
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How do I fix my P_ups function?
f = 0.018; %friction coefficient f is NOT declared global at that point in the code, so f is just a normal variable. global ...
2 months ago | 0
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How to multiple very large numbers in Matlab?
uint64(111111111) * uint64(111111111)
3 months ago | 0
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Minimum license TIMEOUT for the latest 2026a version
According to https://www.mathworks.com/help/install/license/concurrent-licenses.html#mw_4c2f5297-ee7d-4e3b-9fc1-d309b32817ce the...
3 months ago | 0
how to simplify/solve a trigonometric function
syms ajj Giijj Hii real syms angle lat real Gincliijj = Giijj.*cosd(angle)+1000*(-sind(ajj).*cosd(lat)*sind(angle).*cosd(0)+co...
3 months ago | 0
anonymous function with rng call inside
f = @(t) struct('rng', rng(ceil(t/10)), 'r1', rand(1)).r1 f(2)
3 months ago | 0
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The etc directory with lmstat, lmutils is missing from a fresh R2026a installation; recommendations?
See https://www.mathworks.com/help/install/ug/update-network-license-manager-software-1.html for independent software that must ...
3 months ago | 0
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what is compared in gpu demo
No, that benchmark does not compare to host processing speed at all.
3 months ago | 0
Dear all, I have the following integral. Standard numerical integration (direct summation) takes about 40 seconds on a regular PC. Any tricks to reduce this to a few seconds?
Ny = 50; rng(655321); M2Ny = rand(2*Ny, 2*Ny); ZNy = zeros(Ny, Ny); INy = eye(Ny); I2Ny = eye(2*Ny); C = @(k1, Ny) [exp(-1...
3 months ago | 1
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uicontrol edit field .String doesn't visually update from KeyReleaseFcn unless a breakpoint is set
uicontrol for traditional figure has the property that the String property does not update visually until one of two circumstanc...
3 months ago | 0
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Does MATLAB phone home on startup? (Startup time with VPN and without VPN)
It looks to me as if MATLAB connects to licensing.mathworks.com upon startup. There are other connections from MATLAB Service ...
3 months ago | 0
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Method for returning only the image portion of a Figure?
for i = 1:20 img = imread(sprintf('ULAMovePerp_full/%s',contents(i).name)); img_cropped = img(70:580,161:1020,:); ...
3 months ago | 2
| accepted
Execution of script mpower as a function is not supported
Your D:\App Files\MATLAB\toolbox\matlab\matfun\mpower.m is probably corrupted. In R2025b at least, mpower really is a MATLAB f...
3 months ago | 0
Issues with specifying the renderer in MATLAB 2026a for graphics
MATLAB no longer uses OpenGL at all, as of R2025a. OpenGL is no longer an option at all, and can no longer be selected. https...
4 months ago | 0











