# Sulaymon Eshkabilov

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

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solving four equations to find I1, I2, I3, I4 as functions of R1, R2, R3, V1 and V2

Here is the corrected code (there were some character problmes and undeclared V1 V2 R1 R2 R3 vars): syms I1 I2 I3 I4 V1 V2 R1 R...

1 dag ago | 0

Having problems with integration equations.

Hi Thomas, Actually, all calcs are correct - see: syms t v_1 = 90/(1+0.3*t); d_1 = int(v_1,t) % Here d_1 is verified V...

1 dag ago | 0

How to find root locus of a polynomial

Here is how to get the roots plotted. m_s = 1; % Mass of the spring m_r = 68; % Mass of the rotor k_r = 5.45e5; % Spring...

2 dagen ago | 0

| accepted

Importing Dates as variable names in an table from Excel

Here is one option that partially solves your exercise and explains it can't be solved completely: T_VARS = readtable('VAR_SAVE...

2 dagen ago | 0

Denominator for the nth order inertial term.

Understood your question correctly, that would be somewhat like e.g.: num = 1.0506; SYS = tf(num, [1 1 1 1 1 1/4]); % 5th ord...

2 dagen ago | 0

How to find root locus of a polynomial

Step 1. Derive the transfer function of the system. E.g.: T = tf(1, [1 2 3]) Step 2. Use rlocus() or rlocusplot(). E.g.: rlocus...

2 dagen ago | 0

How to solve interdependent differtional equations

Here is the corrected code. There were a few syntx errs and missing paranthesis. x= linspace(0, pi); y = [0 1 -1]; SOL=Stra...

2 dagen ago | 1

Partial least squares regression

Write your command: [XL, YL, Xs, Ys, Beta, PLSsep] =plsregress(X, y, N, 'CV', F, 'MCReps',100) ; % Note: 'mcreps' vs. 'MCReps'...

2 dagen ago | 0

How to adapt code to apply a sine wave input instead

If undrestood correctly, you are trying to simulate the linear system. It can be attained using lsim(), e.g.: t = 0:0.01:10; y...

2 dagen ago | 0

Why my graphic always on straight line?

Post your simulink model simulasi.slx. Nobody can guess what you have in your Simulink model.

3 dagen ago | 0

Plot a temperature scraped (time control set to 5 minutes) off a weather service?

This is a really interesting exercise. Here is one quick but not sufficiently accurate solution to get the numerical data import...

4 dagen ago | 0

I am attempting to code a function with a differential (temperature with respect to time) and i am unsure how to do so

If you are attempting to solve it numerically, you can do so using ode45, ode23, ode113, etc., built in functions. You'd need to...

4 dagen ago | 0

Find addresses from one file in another file then save into a third file

(1) That would be helpful to see your sample data file. (2) You can also try contains() fcn as well, e.g.: Match_Row = contai...

4 dagen ago | 0

| accepted

Request for review of FFT conversion results

The two can be also compared: A = xlsread('2F100.xlsx','0.2m','D3:F812'); t = A(:,1); r = A(:,3); % Remove mean of r r1=r-m...

4 dagen ago | 1

Request for review of FFT conversion results

One option is zeroing the DC component by removing the mean of the signal and/or setting DC component equal to zero: A = xlsr...

4 dagen ago | 1

| accepted

convert the table to matrix

I believe as Madhan pinpointed that you data size should be 256x256x4x1500. Here is the final code: for k = 1:1500 myfilenam...

6 dagen ago | 0

How to interpolate 2 dimensions of a 4D array ?

Your data size is [176 238 5 248] and not [176,239,40,248]. In this case, interpolate your multi-D data, griddatan() t...

6 dagen ago | 0

how to plot graph using fplot command

It is likely that you have saved one of your MATLAB files by fplot.m name or you have named/stored one of your variables by fplo...

7 dagen ago | 0

How to output a for to a 10x27 table (for loop keeps overwriting the variable)

It can be computed using vectorization instead of loop - see this: sigma_x_case1 = @(d, h)122.23*d.*(814.735*d+167.7312*h+335.4...

7 dagen ago | 0

I want to save the assigned labels in a 3d scatter plot

If understood your question, is this what you are to get with your plot: D = readtable('DBOOK.xlsx'); X = D{:,2}; Y = D{:,3};...

7 dagen ago | 0

When I drag the image, how can I make both the left and right Y-axis move?

One good solution is to download and use these functions created: https://www.mathworks.com/matlabcentral/fileexchange/102945-yy...

8 dagen ago | 0

Literature for Neural Networks in Regression Learner

Here are a few documentations for regression learner: DOC1 DOC2 DOC3

8 dagen ago | 0

how to plot graph using fplot command

Alt syntax for using fplot is this one: FUN = @(x)exp(x); fplot(FUN), grid on figure % Or a bit better controlled way by spe...

8 dagen ago | 0

how should I add to cord

How you are trying to solve your given exercise is not correct. Here is one function that I wrote to simulate the 1 DOF spring...

9 dagen ago | 0

Simulink - How to extract the time when the signal is on?

If understood correctly, you want to find out time signals when the response (output) values were non-zero, right? If so, then ...

14 dagen ago | 0

simulation of mosfet feedback closed loop circuit using pid

MATLAB has pidtune() function that can be used in your execise - SEE THIS DOC Simulink has single-input and double-input PID co...

15 dagen ago | 0

How to plot state/country boundaries over a contour map?

Have you seeen this MATLAB Exchange Contribution code that will help you with your question.

15 dagen ago | 0

I need help due to unrecognized function or variable ' x ' error, please.

Put this code in one M-file or MLX editor window, and hit ctrl+enter x = linspace(-10,10); f=randi(15, size(x)); ANSWER = dd(...

16 dagen ago | 0

I need help due to unrecognized function or variable ' x ' error, please.

Here is how to call a function x = linspace(-10,10); f=randi(15, size(x)); ANSWER = dd(x,f) function a = dd(x, f) n = lengt...

16 dagen ago | 0

terminate loop diverging to inf

There is one critical point is the eps (MATLAB built in var ==> not to use) = 1e-6 is not met. The smallest abs value of z is 0....

17 dagen ago | 0