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Last seen: 4 years ago |  Active since 2020

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The Eigenvalues of a large matrix don't cross each other when plotted
I am trying to plot the eigenvalues of a matrix in accending order w.r.to some parameter. The matrix has large dimension. Here...

4 years ago | 1 answer | 0

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Question


Problem in Eigen values plot
I would like to plot the First five minimum eigenvalues in assending order w.r.t. ''g '' of the following Matrix using for l...

4 years ago | 1 answer | 0

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answer

Question


Problem in contour plot using ''for '' loop.
I would like to get a contour plot in the following code, but some prolem is occuring. Please somebody help me to solve that. ...

4 years ago | 1 answer | 0

1

answer

Question


Problem in summation with floor function
I would like to compute the summation involving ''floor function'' as the limit of the sum. Below I have the code. But when I ru...

4 years ago | 0 answers | 0

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answers

Question


Output is coming out as a large expression
When I run the code below, the outputs appear as a large expression. Here, I have a upper limit in one of the sym summation mi...

4 years ago | 1 answer | 0

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Question


Minimum of the upper limit of a summation
I would like to write the summation in the matlab code where are positive integer. Can anyone help me how to write that in ...

4 years ago | 1 answer | 0

1

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Question


Problem in cropping the pdf image in matlab
I have the following pdf image generated by matlab code. When I save this image as ''pdf'', it comes up with huge white portion...

4 years ago | 1 answer | 0

1

answer

Question


problem in variable pre-allocation in ''For Loop''
I would like to run a ''for loop'' and I am illustrating this in my code. But It is always showing some message the '' the Vari...

4 years ago | 2 answers | 0

2

answers

Question


Problem with definite Integral
I am trying to solve the following definite double integration numerically. The expressions contain summaitions also but that...

4 years ago | 1 answer | 0

1

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Question


Hypergeometric Function in Matlab
Can somebody help me to write the hypergeometric fucntion in code form?

4 years ago | 1 answer | 0

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Question


Normalized to unity by summation
I have the following code where I am trying to get unity after performing a summation. But it is not giving me unity using '' sy...

4 years ago | 1 answer | 0

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Question


Eigenvalues of a large Matrix
I have to plot the one of the eigenvalues of a large matirx in the following. The matrix is 20*20 dim. Numerically I have to ge...

4 years ago | 1 answer | 0

1

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Question


2D contour plot
I have two fucntions with identical independent variable x. I need to draw a 2D contour plot for that two fucntions. But my code...

4 years ago | 1 answer | 0

1

answer

Question


How to insert YTick without numbering in a specific interval
I would like to customise the Y axis in matlab plot. I need to insert the tick without numbering. using the command "set(gca,'...

4 years ago | 1 answer | 0

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answer

Question


Nontrivial(Non-zero) solution of two nonlinear equations
I have two equations given in code. The two lines are cutting each other at (x,y)=(0.098, 2.26) and (0.4899, 2.448) roughly as ...

4 years ago | 1 answer | 0

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Question


Double integration in matlab
I would like to double integrate the following code, but some error is happenig. Pl somebody help me. clc; clear; syms r1 the...

4 years ago | 1 answer | 0

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Double summation in matlab
I would like to do this double summation . where alpha=2; beta=1.5; I am confuse about the command availbale in online .Pl some...

4 years ago | 1 answer | 1

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Question


Inverse of algebraic expression in Matlab
I need to get inverse expression of the following algebraic expression in matlab. clc; clear; syms r E(r)= 1-1/2*((1+r)*log2...

5 years ago | 2 answers | 0

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answers

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Eigenvalues corresponds to eigenvectors
In matlab, the command [V,L]=eig(h) produces the eigenvectors and eigenvalues of the square matirx h. But I would like to know...

5 years ago | 1 answer | 0

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Question


Draw a circle for arbitrary orientation on spherical surface
I would like to draw a circular loop on spherical surface for a fixed orientation of theta(i.e. polar angle on sphere) and var...

5 years ago | 1 answer | 0

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Answered
Normalization of complex eigenvector
Thanks a lot. If I just avoid that 2% contribution, then the plotting will appear shortly? I need to see the graph anyhow. I had...

5 years ago | 0

Question


Normalization of complex eigenvector
What is the best way of normalisation of a complex eigenvector of a complex hermitian matrix. Here I am doing this in the follow...

5 years ago | 2 answers | 0

2

answers

Question


Eigenvector without calling eigenvalues
I would like to call a eigenvector of a matirx without calling its eigenvalues inside a function. Here I attach my code. Pl som...

5 years ago | 2 answers | 0

2

answers

Answered
Matlab taking so much execution time
Thanks..okay,I am leaving it without any optimization (simplify() kind of thing) whole night.let see what happen...

5 years ago | 0

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Matlab taking so much execution time
I have a simple code here. But whenever I try to run this code, the system gets slower and start to hang frequently. Moreover, t...

5 years ago | 1 answer | 0

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answer

Answered
Numerical Integration in matlab
@walter: How do I can normalize an eigen vector in Matlab? PL tell me what is the corresponding command for the normalization?

5 years ago | 0

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concurrence calculation of qubit system
I need to calcualte the concurrenec for the given density matrix. Pl somebody see my code and solve my issue. clc close all ...

5 years ago | 1 answer | 0

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Eigenvector and Eigenvalue probelm
I would like to get eigenvalues of matrix in my code given below, the matlab taking so much time as if never ending processws. P...

5 years ago | 0 answers | 0

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Answered
Numerical Integration in matlab
@Walter: Thanks. I am trying that

5 years ago | 0

Question


Numerical Integration in matlab
what is reliable way to perform a integartion numerically in matlab? I would like to get numerical result after integration of ...

5 years ago | 3 answers | 0

3

answers

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