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A matrix times a vector whose elements are matrix too.
a vector initialvector whose elements are also matrix That doesn't exist in MATLAB, at least not if you want initialvector to b...

3 years ago | 0

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How to do "class " like Python to control equipment
You can create class files in MATLAB. But rather than writing your own VISA interface, if you have a license for Instrument Cont...

3 years ago | 0

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Why do I get "Array indices must be positive integers or logical values"
You use Tm in your code but nowhere do you define it. My suspicion is that you've defined it as a numeric vector like you did Tf...

3 years ago | 0

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Answered
Non linear fit of y=f[x] where y can have multiple values for a single value of x
Are you trying to fit x and y as functions of a third variable t, which in this case could be the indices of the elements in the...

3 years ago | 1

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how to create a cell array with functions from a matrix consisting symbolic expression
Use arrayfun to call matlabFunction on each element of your symbolic array. In order for all the functions to have the same sign...

3 years ago | 1

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Answered
Read older MATFILE in the current version.
I tried loading the original data using the oldest release of MATLAB I can run and was able to read it. It must have been create...

3 years ago | 0

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I have a problem in the value of a2 becuase I need to change the value of p and se in the same time to have the right array
Can you create and use variables with numbered names like phi1, phi2, phi3, etc.? Yes. Should you do this? The general consensu...

3 years ago | 0

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For loop over permutations of 1:n with very large n
How long does your loop body take to execute? If it's one loop body execution per second, running all 1e18 of those iterations w...

3 years ago | 1

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Answered
Symbolic eigenvectors returned by eig are incorrect
clc; clear; % Define variables syms U R T E Gamma Ma % Define Jacobian A = [0, 0, R, 0, 0; 0, 0, R*U, 0, 0; T/(Gamma*Ma^...

3 years ago | 1

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Answered
MATLAB R2013b
Apple Silicon-based Macs do not satisfy the system requirements for release R2013b on Mac. If you made a typo and were asking a...

3 years ago | 0

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Why simulink online cannot run my slx file? is this normal for all users?
Are you using blocks from a third-party blockset or from a blockset not supported for use with Simulink Online?

3 years ago | 0

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Answered
Make a Truth Table
See the islocalmax function.

3 years ago | 0

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Getting an error using theta
Rhsprob=@ (t,U)[U(2),-32.17/2*sin(theta )] Nowhere in the code you posted before this line do you define a variable named theta...

3 years ago | 0

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Overlaying Surface and Vector Plot
Let me add one more command to the code you posted. a=10; [X,Y]=meshgrid(-1:0.1:1,-1:0.1:1); U=a.*X.*(X.^2 + Y.^2).^(-(3/2));...

3 years ago | 1

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How can we access individual edges in a Graph ?
I'd be careful asking for say "edge 8" because graph and digraph reserve the right to reorder the edges array if you insert or d...

3 years ago | 1

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How to compute total links in a Graph?
There are many functions you can call on graph objects, including the numedges function.

3 years ago | 0

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First number in foor loop
Don't hard code the first number. Store it in a variable that you can use to define the loop and then to retrieve the starting v...

3 years ago | 0

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Error in interp1 (line 188). VqLite = matlab.internal.math.interp1(X,V,method,method,Xqcol);
So that error is coming from the second of these lines (commented out so that later lines in this answer can run.) % inc=find(~...

3 years ago | 0

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Answered
how to install Deep Learning Toolbox in MATLAB Runtime
The MATLAB Runtime is not a way to run arbitrary MATLAB code for free. It is used to run applications created by MATLAB Compiler...

3 years ago | 0

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output of two function results
In order to return multiple outputs from a function you need to do two things. Define the function to return two or more output...

3 years ago | 1

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Error in fminunc function line 477
Let's check that you haven't written or downloaded a file that's conflicting with a function provided by MATLAB. What do the fol...

3 years ago | 0

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r2023a offline update wont find install root folder
Try wrapping the directory name in double quotes. j:\r2023a update package\bin\win64\mathworksupdateinstaller.exe --destination...

3 years ago | 0

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Compiled matlab function does not recognize 'predict' function from the statistics and machine learning toolbox
How are you creating or obtaining the first input you pass to predict? My suspicion is that you're loading an object from a MAT-...

3 years ago | 0

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builded function converts from polar to rectangular
If this is not a homework assignment use the pol2cart function. If this is a homework assignment show us the code you've writte...

3 years ago | 0

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Set a variable equal to the string of the corresponding season.
BD = (1:12).'; whichMonth = discretize(BD, ... [1 3 6 9 12 12], ... 'categorical', ... ["Winter", "Spring", "Sum...

3 years ago | 1

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'invaudfilt' function to be found?
I find no function by that name in any MathWorks product. Nor does Google find any hits for "MATLAB invaudfilt" after I tell it ...

3 years ago | 0

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Displaying fit function on the plot
We can use some of the methods of the object returned by fit to get the pieces we need to display it. x = (1:10).'; y = x.^2 +...

3 years ago | 1

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Unable to run a simple 'fsolve' example.
My guess is that you accidentally added the toolbox/optim/eml directory under matlabroot to the MATLAB search path. If it is on ...

3 years ago | 0

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R2014a Error Box Too many input arguments Always Appearing - Buggy.
You likely have a different fliplr.m on the MATLAB search path that's preventing MATLAB from calling the version included in MAT...

3 years ago | 0

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Can anyone duplicate my matlab crash?
I'm not certain but it sounds like this may be Bug Report 1076354. One test you could do would be to transpose your array and ta...

3 years ago | 1

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