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Tarek Hajj Shehadi


Last seen: 2 years ago |  Active since 2020

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Constructing Horizon Lines for a Surface Robot Field of View in Multiple Object Detection
1. Background I am working on a project that deals with detecting floating wastes in ocean, rivers, or lakes using an autonoumo...

2 years ago | 1 answer | 0

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Question


Is there a way to pass a function handle as an argument for fsolve command?
I am trying to extract the fixed (equilibrium) point from a system of two ODEs. First, I constructed the function handle that ho...

2 years ago | 1 answer | 0

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Question


How to pass a function handle as an argument in ode45?
Consider the following code: R = 0.5; l = 1; g = 9.81; omega = 0.25; F = @(t,y) [y(2), (R*omega^2/l)*cos(y(1) - om...

2 years ago | 1 answer | 0

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Question


How to use chi2gof in system identification white residual test?
I have a BJ model that I am trying to validate using flexibility tests. The chi2gof sounds like a good option. Goal: I want to ...

2 years ago | 1 answer | 0

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Question


How to find the index of the first absolute minimum entry of a matrix
I am working on a model structure optimization problem and to summarize consider this matrix: A=[5,7,0.5,5 ; 2,0.5,4,1 ; 0.5,6,...

2 years ago | 3 answers | 0

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answers

Question


How to add white noise to ARX model
Consider the linear difference model of the form: y[n]-0.8y[n-1] =x[n-1]+w[n] both x[n] and w[n] are zero mean white noise with...

2 years ago | 1 answer | 0

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Question


How to measure the angle between the poles and the x-axis using the Root Locus?
I became recently aware of the matlab commands rlocus and sisotool which draws out the root locus and allows us to perform certa...

3 years ago | 1 answer | 1

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Question


How to combine multiple images into an array
I have a set of 7 images each of size 256x256x3 but since these images are all in gray scale then the channels "3" are useless. ...

3 years ago | 1 answer | 0

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Question


Algorithm that asks the user to insert 20 different images
I am working on a long program and in this algorithm I want to ask the user on the command window to input 20 different images. ...

3 years ago | 1 answer | 0

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Question


How to create an interactive 3D axis
I have this vision in my mind that I would hope it could be possible. So consider the following image which I let MATLAB read ...

3 years ago | 0 answers | 0

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How to run an algorithm 5 times and graph all 5 runs in one grid
I have an iterative algorithm that outputs a graph (decaying function) recording progress of a function during the iteration. ...

3 years ago | 1 answer | 0

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Strategy for finding optimal omega in SOR method
I had written an algorithm that searches for the optimal weight parameter to be implemented in the successive-over relaxation (S...

3 years ago | 1 answer | 0

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Question


How to correctly plot a 6x2 grids of subplots
I have 6 images that I wish to plot them in a 6x2 grid of subplots. I applied it as follow : subplot(6,2,1) %... subplot(6,...

3 years ago | 2 answers | 0

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answers

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Constructing the Corrplot function
I am currently learning the functions used in the code from the user Adam Danz's answer in this link https://www.mathworks.com/m...

3 years ago | 1 answer | 0

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Is there a way to compute average norm after a series of trials?
Suppose I have a matrix and I am solving a least-square problem using QR using my own algorithm. A and b are both generated ...

3 years ago | 1 answer | 0

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Can a symmetric matrix AA^T be computed using matrix-vector operation?
I am interested in computing which is a symmetric matrix where now there's nothing special about and in the worst case all of...

3 years ago | 0 answers | 0

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Computing Matrix-Matrix Addition using QR and/or SVD
Apologies if this sounds like an uninformed question but I was wondering if there are theoretical results that talk about the fo...

3 years ago | 0 answers | 0

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Solving Ax=b but only for the values in some rows of x
I have a linear system where: - is square, large ( and on the order of ), asymmetric, very sparse (around non-zeros) -...

3 years ago | 2 answers | 1

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answers

Question


Why does MATLAB's built-in "chol" yield a large error compared to my written algorithm
I wish to know why MATLAB's built-in function chol yields a large error on a matrix S=randi([1,100],[25,25]); A=S'*S; [B]...

3 years ago | 1 answer | 0

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Question


How to plot a Bar Graph without a uniform spacing on the horizontal axis
Hello, suppose I have a bar graph where I am testing some data with How can I have these four values spaced equally on the hori...

3 years ago | 1 answer | 0

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Question


Mean of the rand function goes against theory
I was working on the signal from which I expect to obtain three impulses where the first and the third impulse are situated at ...

3 years ago | 1 answer | 0

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How to observe this portion of the graph
When I plot the fourier transform of I obtained the following graph: As you can note, on the horizontal part of the signal, th...

3 years ago | 1 answer | 0

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Question


How does the command: real(ifft(fftshift(Y))*N) operate?
Hello, I am interested in knowing how this form of the inverse FFT command which is real(ifft(fftshift(Y))*N) works and its ...

3 years ago | 1 answer | 0

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Question


Plotting Piecewise function produces white empty graph
Consider the following code : function [X] = FourierSinc(a,b,K) w = linspace(-10,10,600); syms w U = piecewise(abs(w)<a*pi,K...

3 years ago | 1 answer | 0

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Question


Index in position 2 exceeds array bounds (must not exceed 2
Background : I am writing a MATLAB algorithm LinearReg that takes as an input the vectors and and solves the linear regression...

4 years ago | 1 answer | 0

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Question


Circulant Matrix [Column Wise Traversal]
Below is the row wise circulant matrix algorithm : function C= circulant(x) n=length(x); C=zeros(n,n); C(1,:)=x; for i=2:...

4 years ago | 4 answers | 0

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