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Can you compile a code including linprog function?
If you look here, linprog is not one of the Coder supported functions: https://www.mathworks.com/help/coder/ug/functions-suppor...

2ヶ月 前 | 0

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Writing a MATLAB script for equations
E.g., put these lines in a file with a .m extension: lambda = input('Input a value for lambda: '); mtbf = 1 ./ lambda; Are yo...

2ヶ月 前 | 1

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Lapacke in level-2 C S-function
According to the interface listed here and the link you list above: http://www.netlib.no/netlib/lapack/double/dpotrs.f The n, ...

2ヶ月 前 | 0

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Index Exceeds Array Bounds
Normally I would have expected to see code that sets the next values of x and y, but I don't see it. I.e., I am looking for line...

2ヶ月 前 | 0

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Finding remaining numbers in logical indexing?
E.g., find1 = length<1; : find2 = (length < 3) & (max_width_head > mean_width_neck*2); : find3 = max_width_head>=me...

2ヶ月 前 | 0

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How to use mxCreateNumericArray
This line is incorrect (wrong function and signature): plhs[0] = mxCreateNumericArray(xynum,1,mxINT16_CLASS); /*Creates a ma...

2ヶ月 前 | 0

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Why is my if statement breaking when condition is not met?
The == operator is an element-wise operator. You need to use a string comparison function for this. E.g., if( strcmpi(verbose...

2ヶ月 前 | 0

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Multidimensional arrays do not work in mex functions?
You can't use multi-level [ ][ ]... syntax with simple pointers. E.g., look at these lines: void matsum(double *dphidt, double ...

2ヶ月 前 | 0

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An efficient (quick) way of entering complex data into Matlab workspace.
Assuming you are using R2018a or later, you might try this FEX submission which can reinterpret real variables as interleaved co...

2ヶ月 前 | 0

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How to get direction for 3d angles between 2 vectors
You will need to define in your code which direction is the clockwise and which is counterclockwise. You can do that by definin...

2ヶ月 前 | 1

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How to code this problem?
E.g., syms x A = [1 2 4 5]; n = numel(A); P = prod(x-A); X = cell(n,1); for k=1:n X{k} = P / (x-A(k)); end This giv...

2ヶ月 前 | 0

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ODE45 generates undesired matrix of NaN entries
This is often an initial condition issue with the specific DE's involved. In your code, you have icond(2) = 0 icond(3) = ((F/...

2ヶ月 前 | 0

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How can I transfer the size of the array to mexFunction
Try this (caveat, untested). Don't pass in the row size of the matrix ... just pass in the matrix only. Let the code figure ou...

2ヶ月 前 | 0

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Preallocating a Matrix(For loop, Vectorization)?
In these lines: Y4=repmat(A,N,1); Y4 = cell2mat(arrayfun(@(i) A^i, (1:N)', 'Uni', false) The first line assigns something to ...

2ヶ月 前 | 1

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how can i use several loops
MATLAB will do all of the loops in the order it encounters them. So for the k=1 iteration it will do the i=1:nx loop in its enti...

2ヶ月 前 | 0

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Call function and save results
Maybe just display the results: disp(results); Or loop differently: for k = 1:size(results,1) disp(results(k,:)) end

2ヶ月 前 | 0

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How combine two cell arrays matlab
E = cellfun(@(x,y)[x y],C,D,'uni',false);

2ヶ月 前 | 3

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How do i do Matrix reordering (cutting into blocks)?
It's not exactly clear what the actual size of your matrix is (maybe you could clarify), but for what you have posted maybe this...

2ヶ月 前 | 0

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Can i delete part of a cell array based on a condition?
E.g., >> C = {'CGU','UUU','UAG','GGU'} C = 1×4 cell array {'CGU'} {'UUU'} {'UAG'} {'GGU'} >> X = {'UAA','UAG...

2ヶ月 前 | 0

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Why am I receiving this error "Index in position 2 exceeds array bounds (must not exceed 1)."
When you load into a variable, the data loads into a struct. The fieldnames of that struct are the variables in the mat file. S...

2ヶ月 前 | 1

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Index error when using function
We need to see more of your code to be sure, but you likely have a variable named either f or dx that is shadowing a function of...

2ヶ月 前 | 0

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No-copy read object property from mex c++
There is no official API method to do this with the C API. You have to resort to unofficial hacks. E.g., see this FEX submission...

2ヶ月 前 | 0

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How to make an array that the elements are matrix
Maybe use a cell array? E.g., graph.frontier = {[3x3],[3x3],[3x3],[3x3]}; You can then get at the matrices with curly braces,...

2ヶ月 前 | 0

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Fastest way to find number of times a number occurs in an array?
So, you've got some potential speed problems with your posted methods. When you evaluate the expression X(:,2) repeatedly tha...

3ヶ月 前 | 1

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Second oder ode solution with euler methods
Rewrite your 2nd order equation as a pair of first order equations, then use Euler method on a 2-element vector. I.e., Define y...

3ヶ月 前 | 0

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automating global definition inside multiple functions
Ugh! This is not a good code design. There are better choices. E.g., maybe use a struct with fields named for your variables, a...

3ヶ月 前 | 0

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Calculating axial stresses of different beams
E.g., maybe using the element-wise division operator is all you need: axialforce = a scalar or vector of axial forces area = a...

3ヶ月 前 | 0

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how to replace elements in top third, middle third, and bottom third of matix
Your row indexing is wrong. The first n rows are 1:n which you have correct. The second n rows indexing is n more that the fir...

3ヶ月 前 | 1

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How to put 2 matrices together to make one matrix?
To stack them vertically, A = your 7x2 matrix B = your 3x2 matrix result = [A;B]; If you had two matrices that you wanted to...

3ヶ月 前 | 0

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Two Dice Monte Carlo Simulation
You don't have your for-loops set up properly. You are trying to find the probability that five consecutive 7's occur in 100 ro...

3ヶ月 前 | 0

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