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Solve and Vpasolve can't find solutions
I am trying to solve this system of equations for my class. No, you have a system of inequalities and equations. Let's try solv...

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Suppressing braces and single quotes of a string matrix
That's not a string matrix. That's a cell array each cell of which contains a char vector. Commonly that's referred to as a cell...

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Array indices must be positive integers or logical values
If you are attempting to compile code using MATLAB Compiler that calls load to load an object from a MAT-file and there is no in...

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Problem with iradon in Matlab 2024b
Can you confirm that you're using the iradon function included in Image Processing Toolbox? The error message indicates the fail...

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Circshift bug for sparse logical.
This bug was fixed in release R2018a.

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Downsampling array data from counts per minute to counts per hour
Another potential approach would be to use the groupsummary function.

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I am struggling to store a function without it being evaluated so the function can be differentiated later.
The correct syntax to make that into an anonymous function is: startfunc = @(t) 1./t + log(t) Then evaluating it works like: ...

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Attempted to access solutionsofar(:,0); index must be a positive integer or logical.
To clarify, most likely solutionsofar starts off as a 0-by-0 matrix because it was declared as global. From that documentation p...

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A parfor loop and random number generator
See this documentation page for an explanation and a suggested approach to do what you want.

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MATLAb Solve function not solving
I ran the code using release R2019a and it seems to have worked correctly, giving results that match what others have posted in ...

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Simple question about creating an anonymous function,
The ode45 function requires the function handle you specify as the first input to accept two input arguments and return an outpu...

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Matlab Compiler: passing parameters
How can I prepare a compiled Standalone Application such that the user can open it either in a Matlab command window or a web br...

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difference between simulating a polynomial to the nth power and using the polynomial expansion theorem to expand it. the index increases, the difference in values increases
Let's look at the numbers involved in the calculations in your polynomial evaluations. I've renamed r0_values to just r0 to make...

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Installed package is not working
In order to see Control System Toolbox in the output of ver, specify 'control' (singular) instead of 'controls' (plural). ver c...

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How to scale values in y-axis to be 1-100%?
Use normalize to normalize your data to the range [0, 100]. x = [1, 2, 3, 4, 5, 6, 7, 8, 9]; y = [5, 50, 200, 180, 100, 60, 53...

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The Code to replace non-threshold indexes in Array
Get rid of the find call. A = randi(5,5) idx = (A > 3) % Make a logical mask A(idx) = log10(A(idx)) % Use the logical mask to...

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iscellstr warning "To support string in addition to cellstr, include a call to 'isstring'" unavoidable?
I am just wondering why a function cannot be used without throwing a warning. Does the function issue a warning when you run it...

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download example LLC converter
When I open the version of this example in the release R2022b documentation, the command that it shows me to open that example i...

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to use ismember with arraycell
Both outputs are the same size as the first input. gg = {'A'; 'A'; 'B'; 'A'}; [a1,b1]=ismember({'A'},gg) [a2, b2] = ismember(...

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Gets "Function 'subsindex' is not defined for valuse of class matla.ui.control.UICONTROL
Don't define a variable named set in your code. If you do, you will not be able to call the set function in that function. Modif...

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Matlab forgets new paths I add
What did you run between those two pictures of the Path Tool? It almost looks like you ran (or a function you executed ran) pat...

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A question about the declaration of public properties in apps
How are you planning to share the data between the two apps? This documentation page offers some guidance on how to do that.

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Not able to use imread on images in subfolders
Instead of adding the path to the file that contains your data to the MATLAB search path, construct the full path to the data fi...

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Trying to Differentiate Parametric Equation, Error "Error using diff Difference order N must be a positive integer scalar."
At the start of your code you defined v as a symbolic variable. % Define symbolic variables syms R Z e v real But then later ...

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error out of bond in xlabel
If this is the error you receive: xlabel = 42; xlabel('length of rod') likely the cause is that you've defined a variable nam...

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trying to extract the months to create a format looks like 202404, how to do that ?
I would rename the variable you've created called month, as it will prevent you from calling the month function while it exists ...

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How to fit my data to interpolated functions
Rather than defining your function as a large piece of text, I would define it as a function as per the "Fit a Curve Defined by ...

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Averaging non-aligned time-series arrays
If those integer arrays represent some amount of time (seconds since the start of whatever experiment you used to collect the da...

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How can I insert a variable into a plot legend, with a special character following the variable?
In addition to what the others have said, rather than passing empty strings into the legend function to skip one or more of the ...

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after inter activation key write for me Invalid Activation Key (510). For help resolving this issue, see this MATLAB Answer.
If following the instructions in that MATLAB Answers post linked in the error message did not solve the problem, please contact ...

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