Sulaymon Eshkabilov
research interests: vibrations, optimal control, system modeling and simulation, mechatronics... coding
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Content Feed
finite element for 1d poisson equation
You can employ matlab's PDE toolbox fcn pdepe(). How to use it: doc pdepe Also, you can find some good help in this DOC.
10 days ago | 0
Image analysis for Signal processing help
Using the Discrete Cosine Transform is quite straightforward. You'd need to employ dctmtx() fcn. Help documentation: doc dct...
11 days ago | 0
Image analysis for Signal processing help
Use imcrop() How to use this function: >> doc imcrop
11 days ago | 0
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Perform fminsearch to find the best value for the variable in a model
One pranthesis was missing: ... for ii = 1:numel(Imeas) Itheory = @(Ro)(Imeas(ii)*exp(-Ro*-2*bet_a*k*2*Ro*(1-(y(ii)/Ro)^2))...
11 days ago | 0
How do you obtain the equation of the Adaptation mechanism adjusts in the MRAC PID block?
It is found here: Simscape / Electrical / Control / General Control If your MATLAB/Simulink package has Simscape toolbox. Yo...
11 days ago | 0
Perform fminsearch to find the best value for the variable in a model
Note the following two points in your code that must be identical and input variable names must match as defined above: Itheory...
11 days ago | 0
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Keyboard shortcuts are not mapped correctly to different language keyboard
Use preferences options to adjust your keyborad shortcuts, e.g.: >> preferences follow: Preferences -> keyboard -> Shortcuts ...
11 days ago | 0
How to detect rotation in a trajectory?
One way of detecting the region of values is using logical indexing, e.g.: t = ... x = ... y = ... % Way 1 Ind = t>=0 &...
11 days ago | 1
Perform fminsearch to find the best value for the variable in a model
There are a couple potential of errs in your code. (1) Ifunc fcn has to have two more input variables, viz. bet_a, k and thus, w...
11 days ago | 0
Laplace Transform of Given Differential Equation
Note that if your system has "zero" ICs and not excitation force; therefore, your system solution (response) will be zero. If yo...
16 days ago | 0
It is Simulink Related
See the attached screen shot how to perform a search.
17 days ago | 0
Import .csv files in my folder directory.
probably, you'd better use a loop, e.g.: for ii=1:Number_csv % Number of *.csv files D{ii}=readmatrix(strcat(num2str(i...
17 days ago | 0
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Laplace Transform of Given Differential Equation
Laplace transform does not work at t ~0 initial conditions and thus, here dsolve() might be a better option, e.g.: syms y(t) D...
17 days ago | 0
How to Identify Range of Frequency which is Noise from FFT Freq Domain graph
Your filtered signal is not quite noise free as it shows here from your script, and your obtained FFT is not quite correct. [x,...
17 days ago | 0
MATLAB gives the integer value of subtraction when the difference between numbers is large.
Specify flotaing point format accordingly, e.g.: a=[1;1;1;1]; b=[10^23;10^23;10^23;10^23]; c=a-b fprintf("%1999.0f \n",c) ...
17 days ago | 0
how to pull correct h into h(i)
Hi, You meant A(2,2) to have h=6.5929, A(3,3) to have h = 6.0625, correct? If so, you can adjust your loop by adjusting inde...
17 days ago | 0
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Integration containing multiple variable and plotting
Use integral3: //www.tatmou.com/help/matlab/ref/integral3.html
18 days ago | 0
cannot add path on mac
Maybe in mac, this way works: addpath(genpath('/Users/maherheal/Applications/CPLEX_Studio128/cplex/matlab'))
23 days ago | 0
Protect Matlab/Simulink Files
One option is creating p-code of m-files, e.g.: >> pcode MYfile.m
23 days ago | 0
Projectile Motion With Air Resistance Vs. Free-Falling with Air Resistance
You can add the free fall plot using simply, e.g.: ... xfall=x(1)*ones(size(x)); yfall = linspace(0, h, numel(y)); plot(xfal...
23 days ago | 1
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why looping just save the last value of iteration
Because the indexes are missing, e.g.: data_diff(??) = out.Vo.signals.values-v_data; lse(??) = lse(??) + (data_diff'*data_diff...
23 days ago | 0
Startup view for a Simulink model.
Hi, Hit your highest level system model on the left top corner of the model browser and then save your model. That would give...
23 days ago | 0
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for loop forward modelling
You can start working somewhat in this way: ... rho = 2600; % Note density can't be negative. for ii = 1:2 f...
1 month ago | 0
3D Plotting with symbolic variables
If it is a symbolic expression, use fmesh(). Here is a good doc how to employ it: //www.tatmou.com/help/matlab/ref/fmes...
1 month ago | 0
Script too Long to Run
Here is a little simplified version of your code: clc format long n=1e4; x1=zeros(n,1); x2=x1; x3=x1; x4=x1; error=x1; ...
2 months ago | 1
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How to fill the area between two curves?
Here are a couple of good examples how to achieve this task: //www.tatmou.com/matlabcentral/answers/180829-shade-area-...
2 months ago | 0
Rearrange a given array
A = [1 2 3 4 5 6 7 8 9 10 11 12]; B = sort(A(:), 'descend'); C= reshape(B, 3,4)...
2 months ago | 1
Plot symbolic function and non symbolic functions on the same plot?
Here is a simple example: figure fplot(@(x) sin(x), [-pi, pi]) hold on x = linspace(-pi, pi, 25); plot(x, sin(x), 'rd') le...
2 months ago | 0
How to use imwrite with image object?
You can try this command, e.g.: imwrite(double(im),filename)
2 months ago | 0
