Michal
MATLAB, Fortran
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MEDIA DE ME GUSTA
Contribute at least one answer each month for 3 consecutive months
Awarded to Michal on 02 Nov 2022
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Awarded to Michal on 01 Mar 2021
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Awarded to Michal on 09 Oct 2019
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Awarded to Michal on 09 Oct 2019
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Awarded to Michal on 29 Jun 2019
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Awarded to Michal on 14 Nov 2017
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Awarded to Michal on 20 Jul 2017
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Content Feed
Pregunta
simplify is not realible
How to simplify the folowing very simple expression: syms a b c e1 = -(b*(b^2 - 4*a*c)^(1/2) - 4*a*c + b^2)/(2*a*(b^2 - 4*a*c)...
2 meses hace | 0 respuestas | 0
0
respuestasPregunta
Merging piecewise polynomial (pp) structures
Is there any method how to merge two or more "pp" (peicewise polynomial) structures in a case of consecutive "pp" structures wi...
2 meses hace | 3 respuestas | 0
3
respuestasPregunta
MATLABConnector startup on Linux
Last two versios of MATLABConnector for Linux automatically put the app to the startup list, but in Preferereces settings is not...
2 meses hace | 1 respuesta | 0
1
respuestaWarning: X does not support locale en_US.UTF-8
Official TMW statement: "This is a warning message that can be disregarded and it has no impact on the functionality of MATLAB....
3 meses hace | 5
| aceptada
Pregunta
Warning: X does not support locale en_US.UTF-8
After application of R2022b_upd5 on linux mint (21.1 Cinammon) I always get the following warning at the startup: Warning: X doe...
3 meses hace | 4 respuestas | 3
4
respuestasPregunta
Volterra integral equation solver
I am looking for good (fast and accurate, with recent state of art methods) numerical (not symbolic) Volterra Integral Equation ...
4 meses hace | 0 respuestas | 0
0
respuestasPregunta
strange performance behavior - microbenchmark
There are two implementations of the same algorithm: function B = alg1( B, R, alpha ) % Fast computation of L1 distance transf...
6 meses hace | 1 respuesta | 0
1
respuestaHow do I speed up lsim computation in a for loop?
Better than naive using of parfor loop is transform to your final simulation model to the sparse form ... see here Transform m...
6 meses hace | 0
Why does MATLAB crash on Linux with "Inconsistency detected by ld.so: ../elf/dl-tls.c: 597: _dl_allocate_tls_init:"
I have similar problem with MATLAB coder on R2022b (Ubuntu Linux 20.04.3) >> coder >> Inconsistency detected by ld.so: ../elf/...
7 meses hace | 4
Pregunta
INTEL oneAPI support for linux MATLAB
TMW officially does not support INTEL oneAPI compilers (C/C++ and Fortran), but only GCC and GFORTRAN on Linux platform. See her...
8 meses hace | 0 respuestas | 0
0
respuestasI have received "deactivation required"
There is an official TMW statement ...
8 meses hace | 2
Pregunta
Free-knot spline approximation (BSFK) problem
@BrunoLuong My data acquisition system produce periodically 1-D measured noised data with the fixed time window length W. I wa...
8 meses hace | 1 respuesta | 0
1
respuestaUse Java 11 jar files in Matlab
You can use following java compiler (javac) option: --release <release> Compile for a specific VM version. Supported targets: ...
9 meses hace | 0
| aceptada
Pregunta
support of Java11
What are the plans to to use Java11 in future MATLAB releases? So far is still using Java 1.8, but Java 11 is now standard defau...
9 meses hace | 2 respuestas | 0
2
respuestasPregunta
decomposition used in parfor
In the following problem, where I need to solve many times same linear system "A" with different right sides "b" is very benefit...
10 meses hace | 1 respuesta | 1
1
respuestasymbolic integration depends on different equivalent forms of function
Simple <https://www.mathworks.com/matlabcentral/answers/507683-why-does-x-x-y-dy-give-a-x-3-component#answer_418071 solution> to...
11 meses hace | 0
Pregunta
symbolic integration depends on different equivalent forms of function
I performed the following equaivalent symbolic integrations: syms x y A = int(x+y,x); A_ = expand(A); % just expanded...
11 meses hace | 2 respuestas | 0
2
respuestasPregunta
multi array vectorization problem (reformulated)
How to vectorize (for-loop elimination) the following code? % init A = [ -0.8013 -0.4981; -0.2278 -0.9009]; t = 0:0.01:...
alrededor de 1 año hace | 3 respuestas | 0
3
respuestasPregunta
How to formulate linear control problem for Stochastic Differential Equation solvers
I have the following linear control problem: x'(t) = A*x(t) + B*u(t) y(t) = C*x(t) + D*u(t) where x(t0) = x0 ... initial co...
alrededor de 1 año hace | 0 respuestas | 0
0
respuestasPregunta
Most effective way to solve nonhomogeneous linear ODE problem
What is the most effective way to solve following "small" linear 1st order ODEs problem: x'(t) = Ax(t) + Bu(t) x(t0) = x0 whe...
alrededor de 1 año hace | 1 respuesta | 0
1
respuestaUse Filter Constants to Hard Code Filter
Probably fully functional naive version of filter: function [Y, z] = myFilter(b, a, X, z) % a and b should have same order...
más de 1 año hace | 0
Pregunta
Algorithm for homogenization of non-equidistant 1-D grid
I am looking for proper algorithm for so called "delta-homogenization" of 1-D non-equidistant grid. Definition: The sorted mono...
más de 1 año hace | 0 respuestas | 0
0
respuestasPregunta
Matlab is significantly slower than Julia on simple evaluation
More and more frequently some people open the question about speed comparison between Matlab and Julia. The main Julia developer...
más de 1 año hace | 2 respuestas | 2
2
respuestasPregunta
expm function problem for stiff matrix
For very specific matrix A: a = -1e20; b = eps; c = 1; A = [a,0,b;0,c,0;-b,0,a]; disp('A:'), disp(num2str(A)) A: ...
casi 2 años hace | 3 respuestas | 1
3
respuestashistogram of signals gaps width
This is much more simple Matlab implementation but still not optimal (+ not vectorized): signals = [1.1 NaN NaN NaN -1.4 NaN 8...
alrededor de 2 años hace | 0
Pregunta
histogram of signals gaps width
I am looking for algorithm (effective + vectorized) how to find histogram of gaps (NaN) width in the following manner: signals ...
alrededor de 2 años hace | 2 respuestas | 0
2
respuestashow to install supported CUDA Toolkit 10.2 on Ubuntu 20.04 LTS Linux
After thorough discussion with Matlab support and several relevant forums (Ubuntu, NVIDIA, ...) the final result is as follows: ...
más de 2 años hace | 0
| aceptada
Pregunta
how to install supported CUDA Toolkit 10.2 on Ubuntu 20.04 LTS Linux
As you can see here, the CUDA Toolkit currently suported by R2020b is 10.2. But, as you can see here , the only supported versio...
más de 2 años hace | 4 respuestas | 1
4
respuestasPregunta
possible speed up of the ischange function by parfor
I completely understand, that any modifications of standard MATLAB functions are very dangerous, but I found the possibility how...
más de 2 años hace | 0 respuestas | 0
0
respuestasPregunta
simple bernoulli sampler function
I am trying to find replacement of binornd function by standard MATLAB code. Is the following command r = binornd(1,p,sz) exa...
más de 2 años hace | 1 respuesta | 0
1
respuesta
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