# Abolfazl Chaman Motlagh

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**Content Feed**

evaluate the double integration

You got 2 things wrong (i think) . the error you currently get is for second one. but you will get the error for first one event...

6 months ago | 0

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why my loop doesn't run or produce an error at all?

second line in image (line 31 in your attached code). for n=533:475 this is an empty loop. here watch this, i run it here: n...

6 months ago | 0

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Error using dlnetwork and dlfeval

the image or images you're forwarding through dl network is colored ( has 3 channels - RGB most probably). try rgb2gray function...

6 months ago | 0

How to programmatically get a list of all app properties in AppDesigner

you can get all public properties with : P = properties(app); for all private and public properties you can use meta class pro...

6 months ago | 0

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How do I create a 2-D plot with a matrix that contains data points and a matrix that contains class labels?

one simple way is to plot (scatter) every class separately. f = rand(150,2); C = randi(2,150,1); scatter(f(C==1,1),f(C==1,2),...

7 months ago | 0

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MATLAB app while loop in button

one simple altenative i can give is use a property in your app. for example add this to properties: properties (Access = public...

7 months ago | 0

for loop output is wrong

you are adding previous calculated numbers in nested loops. you should set T2,T3,... and T6 to zero before counting them for nex...

9 months ago | 0

How to construct a symbolic pde that contains symbolic functions of certain variables (x & t)

you can write it this way: %Blade params functions of x and t syms dw(x,t) w(x,t) w_xx(x,t) q(x,t) EIx(x) mu(x) %Lagrangian ...

9 months ago | 1

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How to flatten the output of convolution1dLayer

by X(:) you are reshaping x to Nx1 vector, but you chose "CB" format for the array which is going to assume the array is 2 dimen...

9 months ago | 0

Multi label Image Classification using Deep Learning

Hi, Look at this example : multilabel image classification using deep learning

9 months ago | 1

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how can I increase the size of an incremental vector filling the space with zeros

use ismember function. X = cumsum(randi(3,1,5)) Y = 1:X(end); Y = ismember(Y,X).*Y

9 months ago | 1

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How to determine whether a 3d point lies within a set of 3d points (a modeled room)

there is one easy way i can think, but that's not maybe very easy to write. you can devide the the while interior of set into s...

9 months ago | 0

I would like to sum a 2 dim array group by value in second column

there are a lot of ways to do this, here's a simple solution. i would recommend you to understand every line and run it line by ...

9 months ago | 0

How do I rotate a rectangular surface by a certain angle and center?

use the cordinate linear transformation. for this first subtract the center coordinate, rotate the coordinate, and finally shift...

9 months ago | 1

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How to solve a MATLAB script that will plot cos(x) for x values ranging from –pi to pi with argument to change line widths?

there is nothing wrong with the code or anything. all you should do is calling the function. you can either save the function in...

9 months ago | 1

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How to display a 2D square as a 3D cube

Use volshow function : thisSlice = dicomread('IMG-0004-00079.dcm'); thisSlice = double(thisSlice); thisSlice = (thisSlice-min...

1 year ago | 1

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Image Compression: How to use blockproc function with dct2 inside

you created DCT_Trans function for blockprop . it's a function which takes structure as input. if you pass structure S to it's i...

1 year ago | 0

Fitting multiple data sets to single curve in least square sense

the nlinfit function take a vector as second input y, because it's cost function for optimization and regression is based on sca...

1 year ago | 0

Why am I getting this error? Local function name must be different from the script name.

Name of your live script is project.mlx and name of your local function within it is also project which leads to error. try diff...

1 year ago | 0

How do I use the besselj function?

The function besselj(nu,x) is in fact two variable function as . you put v(i) and z(i) simultaneously with same index in argum...

1 year ago | 1

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select ROI, threshold it and remove small objects - App designer

about the first problem: you overwrite the app.Icrop on app.I every time the slider changes. so after first time, it goes comp...

1 year ago | 1

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Asking for user input of numbers and letters.

if the plate (variable) could have both number and latters, deal with them like string. for getting input as string you need ext...

1 year ago | 1

plotting delta function in zero interpolation and decimation

the problem you are adressing is that n and m are 1x100 vector each. so the term (n-m*L) is 1x100 array. and it means h1 and h2 ...

1 year ago | 0

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Recursive Least Squares Estimation for Dynamic Systems in Real time

The first time rlsupdate is called the value of P,phi are set to eye(2) and 0. in the line 15 of code you have inverse of eye(1)...

1 year ago | 0

Can my code be written in a more efficient way?

if clearvars are not important, this is exactly equal to what you're doing: % Specify participant folder DotFolder = [Folder '...

1 year ago | 0

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Getting error in ode 45

you put ode45 and plot in your ode function. try this : (all in one script) [t,c] = ode45(@odefun1,[0 10],[1;0;0]); plot(t,c(:...

1 year ago | 0

All the possible path between two points without repetition

You can solve this problem with your data as a matrix, or as a graph. the matrix make it easier i guess: a traditional method w...

1 year ago | 1

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How to create a rectangle to locate a zooming area in a plot?

in first axes use function rectangle. y_min = min(Ly_orb.JacobiConstant(indexOfInterest)); % need indexofInterest for this y_m...

1 year ago | 1

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Write a MATLAB script to find the multiplies of the even numbers of any 𝑁 × 𝑀 matrix entered by the user?

Matrix = randi(100,7,5) multip = prod(Matrix(~rem(Matrix,2)))

1 year ago | 0

Find the optimal state and optimal control based on minimizing the performance index

your cost_function doesn't return a scalar. it should return one number for every input. it seems that x is a 1xn vector. and u...

1 year ago | 0