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Not able to get local and absolute max or min of a function or graph symbolically
[num, den]=numden(dy); dy_den=diff(den); % % Case1: If denominator in y' is a constant if dy_den==0 In general, t...

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Failed to convert matlab function to dll
NAN and INFINITY is not constant and they actually identified by compiler as function, which defined in corecrt_math.h In C, th...

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I haven't defined syms x but solve function gives me values depend on x
The solutions are most naturally parameterized by e2, but you have specified that you want to solve for e2. So solve() has to in...

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Create a 2D plot with irregular axes
pointsize = 20; scatter(x, y, pointsize, Dataset(:)) This will produce colored round dots at the given locations. Producing s...

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Question about sprintf not handling list{:} properly
X = ["a","b","c"] Y = [1, 2, 3] catinated = [X;Y] Look carefully at the output and notice that it is a string array. The nume...

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Using fprintf in a for loop to display the output as a set of coordinate points
The basic problem is that fprintf() consumes all of each argument before going on to the next argument. Combine that with the fa...

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How to ensure Matrixes are matching size
K = zeros(4, 1,n); K is initialized to 4 x 1 by something. K(:,:,n)=P(:,:,n-1)*A.'*inv(A*P(:,:,n-1)*A.'+R); P is 4 x 4 b...

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Format currency in a uitable in app designer
You need to specify the uitable FontName property, supplying a fixed-width font. Your current problem is that spaces in propor...

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How can I change timetable to timeseries?
timeseries() does not accept duration or datetime times. "Sample times, specified as a numeric scalar or vector, or a cell arr...

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How do I change default plot colors to green and blue for multiple patternCustom polar plots?
patternCustom() returns an object handle to lines or else to a surface() object. When you are plotting multiple patternCustom()...

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How can I pass a variable (numeric) through a callback event when I pressed a key in my figure?
set(gcf, 'KeyPressFcn', {@GetData, calibration}); That code does not bind "calibration" to whatever the then-current value of t...

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Add fixed colorbar to volshow
You cannot do that. volshow() creates a standalone chart object. There is an internal vol_hbt.Parent.Axes property but it is a ...

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optical design add on can't be installed with matlab 2025a.
I am not able to locate a toolbox with the name 'Optical Design and Simulation Library for Image Processing Toolbox' anywhere at...

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Extract consecutive elements from a vector in a sliding manner
A = [1 ;2 ;3 ;4 ;5 ;6]; A_slice = buffer(A, 2) now do things with the columns. buffer() requires the Signal Processing Toolbo...

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How to get real root of a function using fminbnd?
x=-1:0.01:8; y=@(x) (x).^(4/3); yinv=@(x) -((x).^(4/3)); x_1=-1; x_2=8; [xmin, ymin]=fminbnd(y,x_1,x_2); [xmax, ymax]=fminbnd(...

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"I want to use a struct that includes pointers in Embedded Coder."
You may need to use something like coder.ceval() in order to be able to use the pointers. MATLAB and Simulink do not support poi...

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Setting size of a figure
You are not exporting the figures: you are exporting the axes, and the axes are different size. The one without the axes does no...

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Is the Ordering of the Output from combinations() Documented, Repeatable, and Sensible?
The source code for combinations is readable. The output order is not documented. The calculation is determinstic, so the ord...

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Sort vector based on another - How?
l = [ 5 3 2 1] k = [ 2 3 4 1] [l_sorted, l_sortidx] = sort(l); k_sorted = k(l_sortidx); l_sorted k_sorted

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3D bar plot, does not show solid bars
You have negative z data. When you set(gca,'ZScale', 'log') then any shape that has a vertex with negative Z cannot be rendered....

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Is it possible to copy/paste myself data ? clipboard ? Shared Memory ?
See https://www.mathworks.com/matlabcentral/answers/534528-how-to-save-serialize-matlab-variables-to-a-byte-string#answer_439768...

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Force quit Matlab Online
You can close the browser tab, and then follow these instructions for killing the session: https://www.mathworks.com/matlabcentr...

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Can you use command prompt to input a nifti file?
See uigetfile to prompt for the file name. After you have the file name, you would need to take appropriate importing steps, su...

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How to find correct "feature" name for parallel computing toolbox?
license('test', 'Distrib_Computing_Toolbox') See https://www.mathworks.com/matlabcentral/answers/449314-how-do-features-from-li...

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How do I access an element in an answer array directly?
Two approaches: First = @(V) V(1); snsr_name = "Diff sensor A1"; snsr_type1 = First(split(snsr_name,' ')) snsr_type2 = s...

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My 6x6 symbolic Jacobian matrix is massive, and matlabFunction( ) is having trouble writing the corresponding numerical function file.
Use children() to get a 6 x 6 cell array (or simply loop over the contents of the array); matlabFunction() each one seperately ....

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Change variable value in the workspace using switch
Send the output of the Switch block into a To Workspace block.

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Inverting an 8x8 symbolic matrix
Start with a generic symmetric matrix, A11 A12 A13 A14 ... A18 A12 A22 A23 A24 ... A13 A23 A33 A34 ... inv() that. Expect it...

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How can I find the installation path for Simulink Support Package for Arduino Hardware
matlabshared.supportpkg.getSupportPackageRoot() It will be in a directory underneath there. In particular, ./3P.instrset/ardu...

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I have matlab2022b update10 installed, how do I install matlab2022b update6 instead?
https://www.mathworks.com/downloads/ . Select R2022b near the upper left side. Now, in the upper middle, select the "I want t...

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