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Haya M


Last seen: mer än 3 år ago |  Active since 2019

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Can I get the integral formula using Matlab?
I have the following integration: $\int_{0}^{2\pi}\frac{1}{\pi}\sin(nx/2)(\pi-x)^2\sin(mx/2)dx$ and and are integers. Can...

mer än 3 år ago | 0 answers | 0

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How can I find a specific toolbox
Hi, I read a paper about a toolbox for solving the first order ODE using exponential integartors that is called EXPODE. I d...

mer än 3 år ago | 1 answer | 0

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Question


How to make R close to the identity
Hi everyone.. Is there any idea how I can make the matrix in qr factorisation close to the identity? Here is my attempt f...

nästan 4 år ago | 0 answers | 0

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Question


write a vector with 3 values inside a loop
Hi everyone, I have a code and I'm looking to find in which real values of y-1=0. Here eigA find eigenvalues of $3x3$ matrix ...

nästan 4 år ago | 0 answers | 0

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Question


changing the ode inside ode45
Hi everyone, I'm trying to solve an ode using ode45 which comes basically from matrix second order ode. My idea is to solve fir...

ungefär 4 år ago | 0 answers | 0

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ode45 with matrix 1st order ode
Hi everyone, I'm trying to solve a first order ode in a matrix form using ode45: where and $Q=\begin{pmatrix} \sin(x) & 0 ...

ungefär 4 år ago | 1 answer | 0

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Question


obtaining the shifts inside the sptarn code
Is there any way to know a value used inside a code? For example in the SPTARN code, which used to solve the generalized spa...

mer än 4 år ago | 0 answers | 0

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Question


Arnoldi method to find eigenvalues
I'm trying to implement the Arnoldi method with the inverse power method to find eigenvalues of large pencil matrix. I have fol...

mer än 4 år ago | 1 answer | 0

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Question


another syntax to obtain eigenvalues?
Is there any other syntax to find eigenvalues of pencil matrix differes from eig?

mer än 4 år ago | 0 answers | 0

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answers

Question


solving eigenvalues PDE problem
I'm working on solving an eigenvalue problem on a domain . I'm intersted on the eigenvalues on the left hand side of the domain...

mer än 4 år ago | 1 answer | 0

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Question


questions about the 'pdeeig'
I'm using the syntax [?,?]=??????(?,?,?,?.1.0,?,1.0,[−1,1]); to solve a PDE on a given domain with a given ? , I have two quest...

nästan 5 år ago | 1 answer | 0

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Question


specify coefficients in pdeeig
I'm working on finding the eigenvalues of a PDE, I'm using: [v,l] = pdeeig(b,p,e,t,1.0,'c*exp(-x)',1.0,[-5 0.9]); the sixth entr...

ungefär 5 år ago | 0 answers | 0

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answers