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Question
PWork loses data in S-function
Hello, I want to read out the data (which are structures) from the S-functions parameter dialog at Startup and use them in ever...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Profiling handwritten MEX C-Function
Hello, is there a way to profile a handwritten MEX C-function to determine which part of the code needs the most execution time...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Difference/usage of mwIndex, mwSignedIndex and mwSize in mex C-code
Hello, I'm writing mex C-code and I am wondering how to correctly use the datatypes mwIndex, mwSignedIndex and mwSize. The desc...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Advantages of mwsize (Cross-Platform Flexibility)?
Hello, in the documentation there is the hint to use mwsize rather than int for Cross-Platform Flexibility. What is the actual ...
presque 4 ans il y a | 2 réponses | 0
2
réponsesQuestion
Increase number of legend entries in Simulink Scope
Hello, I have some vector-valued singals in my Simulink model which I want to display in Scopes. Sadly, the scopes only shows 2...
presque 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Discrete S-Function doesn't update inputs
Hello, I have written a C MEX-S-Function for my model. I set the sample time as follows: static void mdlInitializeSampleTimes(...
presque 4 ans il y a | 1 réponse | 0
0
réponseQuestion
linsolve with symmetric property set is slower than without
Hello, I want to improve the performance of solving a system of linear equations Ax=b. I have a symmetric A matrix. This matrix...
presque 4 ans il y a | 1 réponse | 0
0
réponseQuestion
Warning: Initializing MATLAB Graphics failed.
Hello, I installed MATLAB 2020b on Ubuntu 20.04 LTS. Everytime when I start matlab I get the following warning: Warning: I...
presque 4 ans il y a | 1 réponse | 5
1
réponseQuestion
Set hessian function only once for fmincon
I'm calculating the analytic hessian for the interior-point algorithm of fmincon like described here: https://de.mathworks.com/h...
environ 4 ans il y a | 1 réponse | 0
1
réponseSolve symbolic equation with derivatives
isolate(eqn,expr) is the function I was looking for.
plus de 4 ans il y a | 0
| A accepté
Question
Solve symbolic equation with derivatives
I want to solve an equation with the symbolic math toolbox. This equation also contains derivatives. E.g.: eqn1 = 0 == x + y + ...
plus de 4 ans il y a | 2 réponses | 0
2
réponsesQuestion
Mistake in fft() help (calculation of single-sided spectrum)?
In the fft() help, a single sided spectrum is calculated as follows: Y = fft(X); P2 = abs(Y/L); P1 = P2(1:L/2+1); P1(2:end-1...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Rotation order of quatrotate
Hello, I'm about the function quatrotate. I want to rotate the vector [0,0,1] (means pointing into z-direction of the world fra...
plus de 5 ans il y a | 1 réponse | 1