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# Jon

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185 total contributions since 2013

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How to assign an equation built by string to parameter c in nonlinear inequality constraint function for fmincon?
I don't think the approach you are following is worth pursuing further. Please see https://www.mathworks.com/help/optim/ug/pass...

alrededor de 1 hora ago | 0

how to generate a random vector with fixed sum and bounded elements
Maybe I am not understanding something, but it seems like your problem is overconstrained. You can easily make a length n vecto...

alrededor de 19 horas ago | 0

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Programming and Coding for Beginners
I would strongly recommend first completing the MATLAB On Ramp. This will give you a quick general immersion in using MATLAB. La...

alrededor de 21 horas ago | 0

Matlab "Index in position 1 is invalid. Array indices must be positive integers or logical values."
The error is telling you that MATLAB thinks that the variable that you call maximum is a vector, and that you want to have eleme...

alrededor de 23 horas ago | 0

Faster/Simpler way to update my data in a table
Here's an approach that I think does what you want. You would have to benchmark the run time, but the approach is quite vectori...

alrededor de 24 horas ago | 1

detecting the diagonal squares that includes only zero values
I think this may be do what you want, or if not is close enough that you can modify it from here. The function emptyBoxes ret...

2 días ago | 0

Kinetic equation, R=R∞{1-exp(-Kt)}
It sounds like you may not be too familiar with using MATLAB at all. If you need to get going quickly at using MATLAB I would h...

2 días ago | 0

How to find settling time?
Here's a rough approach you might try. This code will not do the very last epoch, you could further modify to handle this spec...

2 días ago | 0

How to handle timer
You probably have some error in the code, PlotImage, that the timer is calling. Debugging problems in timer functions is a litt...

2 días ago | 0

Not enough input arguments
The 'Not enough input arguments' error message means that when you call the function foc_cia you are not providing the correct n...

2 días ago | 0

How can I seperate these number from a cell and put it into a matrix.
You will not be able to put your data from the cell array you show to a matrix because you have both numeric and non-numeric dat...

5 días ago | 0

Error, array indices must be positive integers or logical values
In your code Df is a 2 by 200 matrix not a function. It therefore does not make sense in the last line of your code to have the ...

5 días ago | 0

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Negative Eigenvalues found in 12x12 Matrix
I would trust the result of the eig function. If you do not think your matrix, cor, should have negative eigenvalues, then you ...

5 días ago | 0

How to solve this error "Not enough input arguments."
Your function requires 4 input arguments. You must have called it with less than 4 input arguments. Please check your code where...

5 días ago | 0

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I cant solve linear programming
It is of course possible to have a linear programming problem that is unbounded. This happens if there are no constraints that p...

5 días ago | 0

How to write a for loop that creates a vector of [1:1000, 1001:2000,....,n]
Just to make Geoff's suggestion more concrete, suppose you had a length 100000 vector of data points. You could put this into a ...

6 días ago | 0

the meaning of basic matlab words
Are you familiar at all with "Object Oriented Programming" this is a general approach to software development used in many compu...

6 días ago | 0

How to only plot the better result from a loop of 48 iterations in a convergence plot?
You could do something like this, assuming that your output is in vector y and iteration number is in vector iterCount plot(ite...

6 días ago | 1

How to find the intersection point by plotting the red line like below?
Assuming you have the water level in a vector, lets call it h, along with the values of pExceed in another vector, you can int...

6 días ago | 1

How can I achieve Matrix-Vector element-wise operations in Simulink Matlab Function Block?
I'm not sure why the MATLAB Function block can not handle the implicit scalar expansion, but I just tried using an Interpreted M...

7 días ago | 0

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For LOOP for splitting an ECG signal into different CHUNKS
It's not really clear to me from your description what you are trying to do. From what I can infer from your description you ha...

7 días ago | 1

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How to fix the time values of repeating sequence to get triangular wave?
I'm sorry I also have no experience with Simulink for Power Electronics so I can not help you with any issues that are specific ...

7 días ago | 0

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How to fix the time values of repeating sequence to get triangular wave?
If you want to make a triangular wave of amplitude A with period T just use Time Values [0 T] Output Values [0 A] You don't h...

7 días ago | 0

Controlling Dynamic Stability Using Torque Vectoring.
MATLAB Answers is a good place to come for help with problems that you are having once you get far enough to actually be working...

7 días ago | 0

Run cmd command from MATLAB
The system command can definitely be used for this purpose. I suspect that your problem is with the string you are passing the c...

7 días ago | 0

How to create a Toeplitz matrix?
You can use MATLAB toeplitz function for this. See the documentation by typing doc toeplitz on the command line. Since your to...

8 días ago | 1

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Unable to perform assignment because the left and right sides have a different number of elements.
In your expression, the left hand side is just a scalar (only has one element) but you are trying to assign a length 4 column ve...

8 días ago | 0

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Givens rotation QR decomposition
It looks to me like your code reproduces what is in the pseudocode. Are you sure that the psuedocode that you based your code o...

8 días ago | 0

Saddle points of a 2D matrix
Here is a simple approach. Note I define a saddle point as one that is either the largest in its column and smallest in its row ...

8 días ago | 0

| accepted