Bruno Luong

Last seen: Today | Active since 2009

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Answered
command to read all current pressed keyboard keys
This File Exchange works well for me Hebirobotics No toolbox is required and no need to open a figure() to catch the keypressed...

10 days ago | 1

Answered
Error using uitable in a figure, not uifigure
Sorry there is no workaround.

12 days ago | 0

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Is version 2021a compatible with windows 10 home (version 21h1)?
Yes, it's my config at home.

25 days ago | 0

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Answered
Is there an efficient way to write a piecewise function ?
tempfun = @(x) interp1([0 T], A([1:end end]), x, 'previous'); temp = tempfun(whatever_query_t);

26 days ago | 0

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Why does the speed of histcounts vary so much?
It's just an assumption but histcounts probably use binary search on finite edge values. The large last edge probably penalizes ...

29 days ago | 1

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I have a complete undirected graph with labeled edge. is there any toolbox to apply TSP in such graph.
There are several submissions of TSP in file exchanges or if you have optimization toolbox https://www.mathworks.com/help/optim...

1 month ago | 0

Answered
How to find a vector multiple times in an array?
A = [1 3 4]; %x,y,z-coordinates - vector B = [2 3 4; 1 3 4; 5 5 6; 3 4 6; 1 3 4]; %array % which row match find(ismember(B,...

2 months ago | 1

Answered
Could anyone help me how to generate the matrix in the following manner as described below
hi=repelem((1:5)',100*(1:5)); r=ceil(rand(size(hi)).*hi)

2 months ago | 0

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Answered
Looking for a faster way of finding the first element larger than a given number in a sorted array
You might try k = discretize(r,b); if b(k) == r k = k+1; end

2 months ago | 0

Answered
How to calculate permutation powers
M= [ 1 2 3 4 5 6 7 8 9 10; 3 6 8 1 2 4 5 7 10 9] S=s...

2 months ago | 0

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Answered
Applying vectorization techniques to speedup the performance of dividing a 3D matrix by a 2D matrix
If you have C compilers the fatest methods are perhaps mmx and MultipleQR avaikable on FEX https://www.mathworks.com/matlabcent...

2 months ago | 1

Answered
Can I pass arguments to a @callbackFcn?
% Assuming operation,mode are defined % operation = ... % mode = ... configureCallback(s,"terminator",@(s,t) readSerialData(s...

2 months ago | 1

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cell2mat too slow
Try cat(1, nodes.pose)

2 months ago | 0

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Answered
How can I call M fuctions in different thread in mex coding matlab and C++?
No you cannot. MATLAB will crash since many MATLAB functions are not thread safe.

2 months ago | 0

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Answered
How to quickly do Cholesky factorization for many small matrices?
It requires MEX, but it should be fast https://www.mathworks.com/matlabcentral/fileexchange/37515-mmx

2 months ago | 0

Answered
how to vectorize squared function
X=rand(3,10); Y=rand(4,10); L=rand(10); N=size(X,1); M=size(Y,1); XX=reshape(X,N,1,[]); YY=reshape(Y,1,M,[]); YX=reshap...

2 months ago | 0

Question

Trigger event for graphic handle object?
The function notify seems to be designed for user-define class. Is it possible to make it works on MATLAB graphic handle objects...

2 months ago | 0 answers | 2

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answers

Answered
Is it possible to make inactive some of lines?
Put "..." (without the quotes) in front of the lines you want to hide

2 months ago | 0

Answered
Return all ShortestPath explored nodes
This problem has been answered in this thread https://www.mathworks.com/matlabcentral/answers/494497-how-can-i-get-all-the-exi...

2 months ago | 0

Answered
How interp2 deal with edges on bicubic interpolation?
The boundary handling is descriibed in the section Boundary Condition of this Cubic interpolation reference Especially the equa...

2 months ago | 2

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Answered
splines with derivative conditions at support points
There is the option point-wise constraints (pntcond) of my FEX BSFK to achieve your goal.

3 months ago | 0

Answered
how to use threads in matlab app designer
Many MATLAB stock functions are not thread safe, they are not suitable for multi-thread run. This is MATLAB limitation one canno...

3 months ago | 0

Answered
Compiler Support for Intel® oneAPI Toolkits - Fortran
It works for me (C) you light be abe to adapt for fortran https://www.mathworks.com/matlabcentral/answers/678588-mex-how-to-mod...

3 months ago | 0

Submitted

FFT-based convolution
Discrete convolution using FFT method

3 months ago | 17 downloads |

Answered
How to generate random uint64 values
maxval = int64(2^60); n = 100; twop32 = 2^32; q = double(maxval/twop32); hi = floor(q*rand(1,n)); himax = floor(q); lom...

3 months ago | 0

Answered
How to generate random uint64 values
I can't see why you are reluctant to generate 2 x 4 bytes r = typecast(randi(intmax('uint32'),2*100,1,'uint32'),'uint64')

3 months ago | 1

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Graph Laplacian and adjacency matrix
Not sure what data format you have, but for graph % TMW example s = [1 2 2 3 3 3 4 5 5 5 8 8 9]; t = [2 3 4 1 4 5 5 3 6 7 9 1...

3 months ago | 0

Submitted

find_idx
Fractional binning

3 months ago | 4 downloads |

Answered
Best practices to use Matlab assert
No C debug mode slows every statement down. ASSERT costs the overhead of checking whatever you instruct MATLAB to check. It ma...

4 months ago | 0

Answered
Program to generate permutations in a certain order
clear X X{1}=[1 1 0 1]; X{2}=[1 0 1 0]; X{3}=[1 0 1 1]; X{4}=[1 1 1 0]; X{5}=[0 1 0 1]; X{6}=[0 0 0 1]; n=length(X); P...

4 months ago | 1