Réponse apportée
How to limit calculation precision?
You can get about that precision (a little less) by using the half data type: https://www.mathworks.com/help/fixedpoint/ref/hal...

presque 6 ans il y a | 1

Réponse apportée
FOR LOOP NOT WORKING
Index your answers. E.g., if EXANGLES(i) < 90 EVANGLE1(i) = EVSUB1-FT126; elseif EXANGLES(i) == 90 ...

presque 6 ans il y a | 0

Réponse apportée
Numerical Solution of the System of four Coupled Nonlinear ODEs by Runge-Kutta Fourth Order Method
I will point out some problems, and then suggest a much easier way to do this. Start with your first couple of lines in the loo...

presque 6 ans il y a | 0

Réponse apportée
can i get mex files in matlab format?
Mex files are compiled (i.e., machine language) DLL files. You cannot view them in MATLAB m-file format. If you have the C/C++...

presque 6 ans il y a | 0

| A accepté

Réponse apportée
I need help obtaining the values c1,c2.c3 from a least squares fit of the data.
It appears to me that your equation is linear in c1, c2, c3. Just make a matrix equation out of this and then apply your least ...

presque 6 ans il y a | 0

Réponse apportée
How to add an NxN matrix with K pages ?
You are correct, sum(A,3) is the correct syntax to use. This sums across the 3rd dimension.

presque 6 ans il y a | 0

Réponse apportée
How do I vectorize matrices of specific modes of a tensor?
Is this what you want? x = your 250 x 250 x 183 array result = reshape(x,250*250,183);

presque 6 ans il y a | 0

Réponse apportée
Why the memory Limitation to a data structure in cpp: size of "XXX::C_SubNetwork::S_ListBuffer [3]" >= 256 Mb and can I raise the limit higher?
This looks like you are declaring this variable as a local variable, in which case the memory for it will come off of the stack....

presque 6 ans il y a | 0

Réponse apportée
mxCreateNumericMatrix and sparse matrix in C/Matlab hybrid programming
Convert the index arrays to double either inside the C code or on the Engine side. E.g., engEvalString(ep, "MS=sparse(double(MI...

presque 6 ans il y a | 0

Réponse apportée
Converting double values file to 2 byte per sample.
If you want a two byte floating point representation you can use half precision. E.g., https://www.mathworks.com/matlabcentral/...

presque 6 ans il y a | 0

Réponse apportée
How can I multiply N dimensional matrices
Other options from the FEX: https://www.mathworks.com/matlabcentral/fileexchange/8773-multiple-matrix-multiplications-with-arra...

presque 6 ans il y a | 1

Réponse apportée
whats difference beetween angvel and rotvec?
I don't have a version of MATLAB installed that has the angvel( ) and rotvec( ) functions, so I can only make an educated guess....

presque 6 ans il y a | 0

Réponse apportée
Strncpy/Strncpy_s is supported by Matlab
Your code has bugs. That is why it is crashing. The bugs are caused by these lines: main(); // You call main without any ...

presque 6 ans il y a | 0

Réponse apportée
Fast conversion of 2 matrices to 1 complex matrix
See this FEX submission for reading and writing interleaved complex data in R2018a or later without extra data copies: https://...

environ 6 ans il y a | 0

Réponse apportée
How to replace leading zeroes by spaces with regexprep
One way: fun = @(x)sprintf(['%' num2str(numel(x)) 'd'],str2double(x)); d = cellfun(fun,a,'uni',false); e = cellfun(fun,b,'uni...

environ 6 ans il y a | 0

Réponse apportée
trimming matrix arrays arranged within cell arrays
It is not clear whether you want the rows or columns trimmed. Maybe one of these is what you want? TrimmedArray = cellfun(@(x) ...

environ 6 ans il y a | 0

Réponse apportée
Runge-Kutta 4th order function error (Matrix dimensions must agree)
Your RK_4 function is not set up to handle vector equations ... it is only set up to handle scalar equations. Also you are not ...

environ 6 ans il y a | 0

Réponse apportée
How to pass arguments by reference from Matlab?
doc loadlibrary Create a C header file that gives prototypes for the Fortran subroutines and treat the Fortran arguments as poi...

environ 6 ans il y a | 0

Réponse apportée
how to create an array of all permutations
If you want all of them in an array (which might be too large if the number of digits is too large), you can use n = number of ...

environ 6 ans il y a | 0

| A accepté

Réponse apportée
Trying to do calculations for density
Why do you have these lines in your function: P_t=4; P_s=3; H=25; Aren't these variable supposed to be input arguments? See...

environ 6 ans il y a | 0

| A accepté

A soumis

freadcomplex and fwritecomplex
Mex routines that read and write interleaved complex data files for MATLAB R2018a or later without extra data copy.

environ 6 ans il y a | 1 téléchargement |

5.0 / 5

Réponse apportée
efficient ways to read and write complex valued data
A mex routine to accomplish this that doesn't use any hacks can be found here: https://www.mathworks.com/matlabcentral/fileexch...

environ 6 ans il y a | 0

| A accepté

Réponse apportée
efficient ways to read and write complex valued data
This may not apply to you, but if you have R2018a or later you can just fread( ) into a real variable directly the interleaved d...

environ 6 ans il y a | 0

Réponse apportée
Changing contents of Cell Array mex files
When you mxDestroyArray a cell array or struct array, it does a deep destroy. Meaning all of the cell array or struct array ele...

environ 6 ans il y a | 0

| A accepté

Réponse apportée
solution with the Runge-Kutta method HELPP
This is clearly a homework/exam question, so I will only offer hints. The code you have posted is for a single scalar different...

environ 6 ans il y a | 0

Réponse apportée
How could I use MATLAB to solve for x with this equation, 0=a*x^(3)+b*x^(-1)+c.
Just use the roots( ) function. If you have a negative integer power of x in the expression such as x^(-n), then multiply every...

environ 6 ans il y a | 0

Réponse apportée
reshape loop resulted cell array
result = cell2mat(c1(:))';

environ 6 ans il y a | 0

| A accepté

Réponse apportée
Matrix with nested for loops
You don't need loops for this. E.g., p = the probability result = rand(20,20) < p; % your matrix of 0's and 1's

environ 6 ans il y a | 0

| A accepté

Réponse apportée
Bit xor of two binary strings and conversion into decimal
The xor part as a logical vector result result = str1 ~= str2; Or if you wanted it as char: str3 = char((str1 ~= str2) + '0')...

environ 6 ans il y a | 0

| A accepté

Réponse apportée
Function 'quatrotate' not supported for code generation.
You can always write your own. Just code up the matrix multiply at the bottom of the doc page: https://www.mathworks.com/help/...

environ 6 ans il y a | 1