Sulaymon Eshkabilov
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research interests: vibrations, optimal control, system modeling and simulation, mechatronics... coding
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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 %...
ongeveer 23 uur ago | 1
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
ongeveer 2 maanden ago | 0
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...
ongeveer 2 maanden ago | 0
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')
ongeveer 2 maanden ago | 0
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 ...
ongeveer 2 maanden ago | 0
| accepted
help with wavelet analysis - wcoherence plot
If understood your question correctly, follow this doc: https://www.mathworks.com/help/wavelet/ref/wcoherence.html#d126e131143 ...
ongeveer 2 maanden ago | 0
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...
ongeveer 2 maanden ago | 1
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...
ongeveer 2 maanden ago | 1
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_...
ongeveer 2 maanden ago | 0
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...
ongeveer 2 maanden ago | 0
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 ...
ongeveer 2 maanden ago | 0
| accepted
How do I graphic
The given inequality does not have explicit solution. Therefore, by ignoring analytical constraints, these can be obtained: sym...
ongeveer 2 maanden ago | 0
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 maanden ago | 0
unable to connect blocks in Simulink
Use Simulink-PS converter block: https://www.mathworks.com/help/simscape/ref/simulinkpsconverter.html
2 maanden ago | 0
| accepted
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 maanden ago | 0
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 maanden ago | 0
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 maanden ago | 0
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 maanden ago | 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 maanden ago | 0
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 maanden ago | 0
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 maanden ago | 0
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...
2 maanden ago | 0
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 ...
2 maanden ago | 0
| accepted
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...
2 maanden ago | 0
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 maanden ago | 0
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 maanden ago | 0
how to convert a 3D surface into a 2D contour?
Note that it is clear from the colorbar scale (Figure 2 in your question) that there must be another operation before obtaining ...
3 maanden ago | 0
Error in resampling function
If you want to use fs = 5000 Hz, then the command syntax has to be resample(x_siganl, time, fs_new) This is how it should be don...
3 maanden ago | 0
| accepted
How to compute forces in global reference frame?
Presuming that you are also using some blocks from SimScape toolbox in the Simulink environment, here are some points to conside...
3 maanden ago | 0
How do I change the current directory in Simulink Onramp?
Even if you are working online, you can still go for "Save As" option (upper left corner) to select the directory where to save ...
3 maanden ago | 1