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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...
5 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...
5 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...
10 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 ...
10 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...
10 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 -...
10 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...
10 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 ...
10 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...
10 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...
10 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...
10 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...
10 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...
10 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...
10 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...
10 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...
10 years ago | 2 answers | 0
