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Lukas Bystricky
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Question
MXCREATEDOUBLEMATRIX memory overflow error
I have a mex file which calls MXCREATEDOUBLEMATRIX, for example PLHS(1) = MXCREATEDOUBLEMATRIX(100,1,0) At this line Matlab...
4 years ago | 1 answer | 0
1
answerQuestion
Compiling mex with gfortran
I'm trying to compile some Fortran files into a mex file. I'm using an existing makefile, and I'm having issues linking the corr...
4 years ago | 0 answers | 0
0
answersQuestion
Make transparent contourf plot
I'd like to overlay a contourf plot on top of a map of the world. To do this the contourf will need to be transparent. Following...
8 years ago | 2 answers | 1
2
answers[DEPRECATED] What frustrates you about MATLAB?
Another slightly irritating issue is that you can't call rank(A) on a sparse matrix. Yes I know you can use sprank instead, but ...
9 years ago | 0
Question
Assign separate handles to function outputs
I have a function that returns two outputs, the function value and its derivative. I'd like to create separate handles to the fu...
9 years ago | 1 answer | 0
1
answerCounitng the number of scatter points above a surface
Can your surface be expressed as z = f(x,y)? If so for every scatter point (at position (x0,y0, z0)), you can do: h = z0 -...
9 years ago | 0
[DEPRECATED] What frustrates you about MATLAB?
I haven't gone through all the answers so it's possible this has already been addressed, but there are a couple things that both...
9 years ago | 0
How to make sure each column in a matrix sums exactly to 1?
It's because you're calculating the column sums and then setting the diagonal entries to 0. If you calculate the sums after you ...
9 years ago | 0
| accepted
Given i have multiple csv files in a folder, how can i access it and read them?
Try something like this files = dir('*.csv'); num_files = length(files); results = cell(length(files), 1); for...
9 years ago | 0
| accepted
Matrix Multiplication column and vector
Try B*A where A is a row vector and B is a column vector (you may need to transpose them to get them in this form). T...
9 years ago | 0
Where can i get the mathematical form/formulaes for all the techniques used in image processing toolbox?
Matlab typically provides references for each function at the bottom of the documentation page. See for example the reference...
9 years ago | 0
| accepted
shifting plot of signal from right to left
Assuming you're plotting x vs. t, instead of plot(t,x) try plot(t - 8, x) (or something close to 8) to shift...
9 years ago | 5
Meaning of the symbol '' \ ''
That's actually a backward slash. J\F is equivalent to solving the system J dx = F for dx, where J is a matrix (probably a Jacob...
9 years ago | 2
| accepted
Question
Simulink System Target Comparison
I'm new to Simulink Coder and I'd like to find out the differences between the various system target files in the code generatio...
9 years ago | 0 answers | 0
0
answersQuestion
How does Simulink/MATLAB decide on the precision of its output?
<</matlabcentral/answers/uploaded_files/33754/difference_32.jpg>> I'm in the process of doing a comparison between a simple S...
9 years ago | 1 answer | 0
1
answerQuestion
Detecting Bubbles Using Image Segmentation
I'd like to segment an image similar to the following in order to count the number of "bubbles". <</matlabcentral/answers/upl...
9 years ago | 2 answers | 0