Sulaymon Eshkabilov

Last seen: ein Tag vor | Aktiv seit 2011

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research interests: vibrations, optimal control, system modeling and simulation, mechatronics... coding

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How can i simulate and generate data for acoustic metamaterial ?
MATHWORKS has a bunch of remarkable tutorials on ML. You should train yourself through these training courses which will help yo...

2 Tage vor | 0

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How to complete Gaussian elimination?
Here is the corrected code: A = [2 0 1; -2 4 1; -1 -1 3]; b = [8 0 2]'; sz = size(A, 1); disp([A b]); % Forward eliminati...

2 Tage vor | 1

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Trouble with my functio out
If understood your question correctly, you are asking about input arguments of a function, right? If so, here a couple simple ex...

2 Tage vor | 0

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loop while loop for
I suppose that what you are trying to get is dv/dt >=0.05. Here is how you can get it done: clc; clearvars; m = 36/1000; g=9....

2 Tage vor | 0

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How to delete a file when closing Matlab?
Use delete command the mat file called DONE.mat, e.g.: delete('DONE.mat') % e.g. One good option is to edit startup.m file %...

6 Tage vor | 1

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Solving coupled ODEs via ode45
If your equation is implicit then, ode15i might be the tool to use. https://www.mathworks.com/help/matlab/ref/ode15i.html

etwa 2 Monate vor | 0

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length error don't know why
Check this in the command window: which length If by mistake any variable or M-file was called by length, the variable can be...

etwa 2 Monate vor | 0

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Error using imread>get_full_filename (line 566) File "gg(21).jpg" does not exist. Error in imread (line 375) fullname = get_full_filename(filename);
You can add the path to the directory where your images are located using addpath(), e.g.: addpath('C:\Users\new\Testing')

etwa 2 Monate vor | 0

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Generate and acquire signals with a DT9857E box using Matlab
It is all about DAQ DT9857E issue. Once we had also the same issue - a kind of exponential decay. So far, I remember what we ...

2 Monate vor | 0

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help with wavelet analysis - wcoherence plot
If understood your question correctly, follow this doc: https://www.mathworks.com/help/wavelet/ref/wcoherence.html#d126e131143 ...

2 Monate vor | 0

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How to move the Yaxis exponent outside
Here is one example how to get it done: % Sample data for plot display x = linspace(0, 2*pi, 100); y = 1e6 * sin(x); %% De...

2 Monate vor | 1

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how to find point from Table data in Simulink?
Do the followings: Feed the temperature and density values as inputs to the lookup table block The output of the lookup tab...

2 Monate vor | 1

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Ray tracing in antenna chamber
Have you checked out this documentation: https://www.mathworks.com/help/comm/ref/rfprop.raytracing.html?s_tid=answers_rc2-1_p4_...

2 Monate vor | 0

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Is this a logical Error in Matlab ? exp (pi*i*6) = 1.000000000000000 - 0.000000000000001i. WHY an i component ?, should just be 1
It is all about a display format: format short exp(pi*i*6) % compare with this: cos(6*pi)+1i*sin(6*pi) % Compare this: fo...

2 Monate vor | 0

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Multiple loops to build structure?
It can be done somewhat what like this one: GN = {'Group 1:'; 'Group 2:'; 'Group 3:'}; NA = {'North'; 'East'; 'West']; for ...

2 Monate vor | 0

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How do I graphic
The given inequality does not have explicit solution. Therefore, by ignoring analytical constraints, these can be obtained: sym...

2 Monate vor | 0

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Starting with the ramp signal r(t) and unit step signal u(t) given below, please write the codes to plot the following transformed versions (a-f):
t=-10:10; figure plot(t,t); grid on xlabel('Samples') ylabel('Amplitude') title('Ramp') figure t2=[zeros(1,100), on...

2 Monate vor | 0

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unable to connect blocks in Simulink
Use Simulink-PS converter block: https://www.mathworks.com/help/simscape/ref/simulinkpsconverter.html

2 Monate vor | 0

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how to plot two m.file in one plot
use plot(x, y), e.g.: x = [-5:5;2*(-5:5); 3*(-5:5)]; y = [3*x.^2+3*x-3; -5*x.^2+5*x-15; -2*x.^2-3*x-13;]; plot(x(1,:),y(1,:),...

2 Monate vor | 0

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Inverse FFT of a matrix
Just looking at your attached figure, it is clear along x axis is time. inverse FFT gives back time domain data from freq domain...

2 Monate vor | 0

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Why can't I run my code? (tfest function)
Here it is running ok: x = readtable('data_thermal_pulse.txt'); time = x.Var1; T1 = x.Var2-x.Var2(1); input = x.Var4; Ts = ...

2 Monate vor | 0

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Why does this function not work for decimals?
Here is the corrected answer (Note abs(x)<=1): % x = input("Please enter the value of x (in radians): "); % Here "input" prom...

2 Monate vor | 0

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How to find an area below the curve follwed by x and y axis having two different parameters?
That would be something like this: DATA = [53 100; 26.5 88.5; 9.5 64.95; 4.75 46.85; 2.36 25.34; 0.85 23.14; 0.425 0;]; ...

2 Monate vor | 0

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help understand the step size of the electrical engine dyno example
Click on Modeling Tab --> Model Explorer --> Base Workspace, and then you will see that the sampling time is 1E-5 in seconds. Se...

2 Monate vor | 0

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How to randomly sample output times in Simbiology?
To randomly generate values using MEAN and STD values, normrnd() fcn can be used: MEAN_val = 15; % Mean in minutes STD_dev ...

2 Monate vor | 0

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How to get rid of Noise in Simulink?
There are a few blocks can be used. E.g., Discrete Filter (Transfer Function), Discrete FIR Filter, etc., whcih can be found: Si...

3 Monate vor | 0

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Matlab Plotting command problem
Even though you have not mentioned any error, there is a tiny point linked with hold on command. It needs to be followed at the ...

3 Monate vor | 0

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How to ignore special characters and retrieve the data prior to the character
Here is one possible solution, to get the data correctly from the data file: % Open the data file for reading FID = fopen('tem...

3 Monate vor | 0

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Solve equations of motion containing matrices and partial derivatives
Your posted code has a few critical issues to be addressed before executing it. (1) epsilon_rp is undefined; (2) y(1) =4.3; bu...

3 Monate vor | 0

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Summing two signals should result in zero, but doesn't
Note that the matlab's PRECISION is not ABSOLUTE. See this example of Pythogorian theorem: a = -pi:pi/100:pi; F = 1 - (sin(a)....

3 Monate vor | 0

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