# Sulaymon Eshkabilov

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

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append (a row) to the end of an excel sheet

This is how you can get it: FName = 'DATA.xlsx'; for ii=1:5 writematrix(magic(3), FN, 'WriteMode','append') end

6 dagar ago | 0

My first fzero calculates just fine but the one after gives me an error eval: TRY must be a string

There are a few inconsistencies in your codes, i.e., f is a fcn not defined as a fcn handle or fcn file. What is fgraf() fcn? ...

6 dagar ago | 0

Drawing random lines in rectangular

Some of the loops can be substituted with vectorization operations, i.e.: ... numbLines=30; theta = 2*pi*rand(numbLines, 1); ...

6 dagar ago | 0

how calculate difference 5 adjacent pixels?

Here is the corrected code (see: row vs. col): for x=2:row-6 for y=2:col-6 difference_of_intensity = abs(m(x,y) -...

7 dagar ago | 0

I`m new to matlab and I need some help about poles and tf?

Use root locus plot and step response simulations that will answer to your questions, e.g.: Sys=tf([1,17],[1,10,17,114]); pzma...

7 dagar ago | 0

How could I remove outliers in really small data?

Linear interpolation might be good to use here, e.g.: x = [-9.0000 -8.0000 -7.0000 -6.0000 -5.0000 -4.0000 -3.0000 ...

7 dagar ago | 0

| accepted

Am I creating dynamic variable names?

What you are doing here is not dynamic variable naming. You're assigning a new variable name from your already assigned data. T...

7 dagar ago | 0

How to Call a function inside for loop?

Here is the corrected code, but still you should check the equation. The found roots are complex valued: hf = 75:20:350; NEFF ...

8 dagar ago | 0

Interpolation is wrong?

Here is the corrected code: x=dep_cal2012; y=wc_average; ix = linspace(1, max(x), numel(y)); WC_interp = interp1(ix, y, x,'ne...

12 dagar ago | 0

Help to transform math formula to matlab

Using the vectorization: format long m=5; jj=1:m; XSum1 = sum(log(jj).*exp(jj.^2)) % Or alternatively Xs = log(jj).*exp(...

12 dagar ago | 0

Why Does "clear all" Impact Prior Commands in a Script?

In such cases, it is best to use: clearvars instead of clear all

12 dagar ago | 0

How to solve laplace transform for ODE with initial value condition

Here is the corrected code: syms t s y(t) Y(s) Dy = diff(y,t); EQN = t*Dy+y== cos(t); LT = laplace(EQN, t, s); LT = su...

12 dagar ago | 0

I have to find the local minima and maxima corresponding to the "peaks" and "valleys" of a data file.

Have you worked with fminsearch() fcn of optimization toolbox: https://www.mathworks.com/help/matlab/ref/fminsearch.html

13 dagar ago | 0

How can I use Lorenz Attractor code?

You simulated the code incorrectly. Here is how you should run the code in one m-file: ICs=[5, 5, 5]; % Your data t=[0, 20]; ...

13 dagar ago | 0

How can I make my ODE system run faster

Use a variable step solver instead of the fixed step, e.g.: options = odeset('mass',BigM,'MassSingular','no','BDF','on','MaxOr...

15 dagar ago | 0

Import Data Fails to open excel file

Use readmatrix() or readtable() which are much more efficient and faster than uiimport() or importdata() fcns that you have used...

16 dagar ago | 0

Question

How to combine two profiles

Hello MATHWORKS staff, Could you please post a procedure how to combine two different mathworks profiles into one? Thanks mu...

16 dagar ago | 0 answers | 0

### 0

answersHow to plot graph with multiple values of x in a function

You may also consider to display a legend showing the number of x values taken for calc and plot in every iteration: count=0; ...

16 dagar ago | 1

How to plot graph with multiple values of x in a function

A small (but crucial) err that is elementwise operation needed, e.g.: count=0; for i=[3,5,7,10,20,100] count=count+1; ...

16 dagar ago | 1

how can i fit curve for transfer function

Laplace transform (LT) formulation is already an anaytical form solution and if you would like to get a new fit (rational polyno...

16 dagar ago | 0

houghline function gives too many outputs???

One potential err is in fcn file: houghline(textxray,r,theta); that does not have any output, but in your M-file you are callin...

16 dagar ago | 0

How to save/store/recuparate data from inside a nested loop.

This can be done: for X=1:N_aoa initial=[0;aoa(X);0;0]; Y=[initial,zeros(4,N)]; for n=1:N ... %Stuff happens here ...

16 dagar ago | 0

How to plot values at particular column or row in a 2D matrix

% A is 1024 - by - 256 plot(A(:,250))

16 dagar ago | 0

Pasteing texts in Matlab script is not working

Restart your computer and install any updates of your computer's OS. It should resolve the issue.

16 dagar ago | 0

| accepted

fmincon error occurs without details in Matlab

It is working ok. clearvars;clc; lb = [0, 0]; ub = [1, 1]; A = [1 1]; B = 1; Aeq = []; Beq = []; x0=[0.5, 0.5]; ...

16 dagar ago | 0

Combine data from 3 tables based on common datetime?

Here innerjoin does not work. It is better to employ a logical indexing approach, e.g.: % D1 is a first table array variable an...

17 dagar ago | 0

How to read data from excel to a cell?

You can get the data from *.xlsx with a few different data import fcns of matlab. Here are two most recommended data import fcns...

17 dagar ago | 0

Why do i get a empty matrix as a result?

There are a few errs (where the parameters are defined and how the output variable dv() is defined) in defining the function fil...

17 dagar ago | 0

How do I minimize a function graphically?

In your code, your variables are x1 and x2 and NOT x. Moreover, g1 and g2 are incorrectly defined. In this exercise, you shoul...

18 dagar ago | 0