Answered
Jacobian calculation of symbolic variables which are function of other variables.
I tried running your code but there are several variables that are not defined: rho, Kf, K, Km, mass, g, gam, J_yy. Specifying d...

20 days ago | 0

Answered
Seasonal decomposition of a daily time series
Take a look at the trenddecomp function (introduced in release R2021b) and/or the Find and Remove Trends Live Editor Task (intro...

23 days ago | 0

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Unrecognized property Value for class Axes?
Why do you believe that hAxes.Parent.Children(2) is the handle to your slider? I would not assume that the handles of the childr...

23 days ago | 0

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wt is the Activation Key for activating MATLAB Simulink
If you're trying to use your company or educational institution's license, ask whoever maintains the organization's software lic...

23 days ago | 0

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Use of private method and properties from a MATLAB class to a MATLAB function
You can grant classes access to otherwise-private properties using the Access, GetAccess, and/or SetAccess property attributes a...

24 days ago | 0

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Managing custom classes, mat-files, and namespaces
For at least the first of those scenarios, class aliasing may be of use. That documentation page has a section "Renaming a Names...

24 days ago | 0

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Answered
VerifyEqual within a time interval
Yes, you can do this in the MATLAB unit testing framework. I assume the context is something along the lines of either A or E be...

24 days ago | 1

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Why does this technique not work?
Setup Let's generate a collection of possible rows. u = randi(10, 6, 3); Let's ensure that no row in u has the exact same val...

24 days ago | 1

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calling a c file to use ode45
You can pass a function handle to a MEX-file that you've created from a C or C++ file into ode45 as long as the signature of tha...

25 days ago | 0

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Compensate the vector with the last entry
If you were using release R2023b or later, you could use the paddata function with the Side name-value argument and either the F...

25 days ago | 0

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How can I open a PDF in a standalone application?
I would probably try calling the open function rather than using system. You might need to explicitly add the openpdf function ...

25 days ago | 1

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How to accelerate the speed of frequent interpolation？
How are you repeating your interpolation? Are you recreating the scatteredInterpolant object each time? If so, instead follow th...

25 days ago | 0

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Trying to update submodules of a project with a script.
Try wrapping the message in quotes in the command to be executed. commit_message = 'Moved submodule Standard to 2024R2'; Compa...

26 days ago | 0

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Answered
Referring to object names in App Designer as elements of an array
You can access properties of an object using a variable name using the syntax shown in the Reference Properties Using Variables ...

26 days ago | 1

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How to draw a square with specific plot points
Depending on what you want to do with those shapes, creating a polyshape array may be useful. x = [0 0 1 1]; y = [0 1 1 0]; ...

27 days ago | 1

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Code not displaying figure
The behavior you described is correct. While your script does define three functions, nowhere in the lines of code in the script...

30 days ago | 1

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Reading a text file using readtable, Matlab stubbornly refuses to accept dates in anything but US-format
The readtable function is very flexible, and that can sometimes make it a little more difficult to use than the lower-level file...

30 days ago | 0

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Need help with homework.
When you call the input function with 's' as the last input, that function will return what you enter as text not as numbers. So...

1 month ago | 1

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Answered
How can I clear an error "The expression to the left of the equals sign is not a valid target for an assignment?"
You cannot use assignment inside the body of an anonymous function. Change this: % Define the system of equations equations = ...

1 month ago | 0

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Answered
I am getting an error
This line of code: function output = convolution1dLayer(input, "stride",filtersize, "Padding",1 ) is not a valid definition of...

1 month ago | 0

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py.list bug in R2024a
See Bug Report 3293694.

1 month ago | 0

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Answered
How can I com[act my script by making it run up to an nth variable
Can you dynamically create variables with numbered names like z1, z2, z3, etc.? Yes. Should you do this? The general consensus ...

1 month ago | 2

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Eliminate the long number appearing in symbolic calculations
Note that you don't want to write your numbers in double first before performing calculations involving the symbolic variable J1...

1 month ago | 1

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Where I can find the MATLAB library *.m files?
What specifically do you mean by "MATLAB library *.m files"? If you mean the *.m files for built-in functions like matrix multi...

1 month ago | 0

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How store evolution of x over the iterations of lsqnonlin?
The ouput of the system is defined by a function file 'error.m', Please rename this function! error already has a very importan...

1 month ago | 0

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Method of Characteristics for Nozzle: Error with syms function
Looking at a few sections in your code, first you define x to be a symbolic variable and you use it as such. syms x f = @(x) (...

1 month ago | 0

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Answered
How do I pass a dynamic number of output variables to a function?
I need to pass a number of output variables that depends on other variable (whose value is not previously known). I wouldn't us...

1 month ago | 0

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I don't understand an error message I get that's related to function ode45.
More likely than not, your ODE function is returning a vector of a different size for one set of inputs than it does for other i...

1 month ago | 0

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Answered
Error using feval Function to evaluate must be represented as a string scalar, character vector, or function_handle object.
Run this command in your MATLAB Command Window. At the prompt, type the five characters bench and press Enter. fname = input('\...

1 month ago | 0

Answered
the mechanism of different syntax for realizing the same effect
I'm not sure your mental model is quite correct, so I want to walk through your question in a bit of detail. Multiple syntaxes ...

1 month ago | 2

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