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Last seen: 4 jours il y a |  Actif depuis 2022

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What About My Matrix Makes eig Inaccurate?
Hi all, I want to understand what about my matrix is causing eig to return inaccurate eigensystem calculations. The code to rep...

9 jours il y a | 1 réponse | 0

1

réponse

Question


Improving Precision of Eigenvectors with Large Eigenvalues
Hi all, This is a bit of a generic question, but I was hoping someone could provide some insight on how I could improve the pre...

29 jours il y a | 1 réponse | 0

1

réponse

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Picking Branch Cut of Square Root
Hey all, I just wanted to know if there was a way of making matlab pick a different branch cut for the square root. Consider th...

environ un an il y a | 1 réponse | 0

1

réponse

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Speeding up matrix exponentials
Hey all, I am trying to speed up the calculation of matrix exponentials but the process is not fast enough and I cannot think o...

plus d'un an il y a | 1 réponse | 0

1

réponse

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Normalizing an FFT Vector
Hey all, I am currently trying to understand how exactly to normalize an fft eigenstate in the context of the 1-d particle in ...

plus d'un an il y a | 2 réponses | 0

2

réponses

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Speeding up matrix operations
Hey all, I would like advice on speeding up the following operation: Suppose we have a filled NxN matrix A, a filled NxM matri...

plus d'un an il y a | 3 réponses | 0

3

réponses

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lsqnonlin initial conditions (transcendental equation)
Hey all, I am trying to fit a transcendental equation to some data points but I am coming across the issue where lsqnonlin ends...

plus d'un an il y a | 2 réponses | 0

2

réponses

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Fitting a Transcendental Equation with Multiple Solutions
Hey all, I would like to know if there is a way to fit a transcendental equation with multiple solutions. For example, if I had...

plus d'un an il y a | 1 réponse | 0

1

réponse

Question


Bessel Equation VPASolve for the order
Hi all, I am trying to solve a simple equation like syms E eqn1 = besselk(E,3)==5 vpasolve(eqn1,E) for the variable E. But...

plus d'un an il y a | 1 réponse | 0

1

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Question


vpasolve all solutions?
Hey all, I was wondering if there was an efficient way of finding all the unique solutions to an equation using vpasolve in a g...

plus d'un an il y a | 1 réponse | 0

1

réponse

Question


Riemann Siegel Theta Equation
Hey all, I wanted to know how I would solve an equation involving the Riemann Siegel theta function (https://en.wikipedia.org/w...

plus d'un an il y a | 1 réponse | 0

1

réponse

Question


Eig takes too long
Hi All, I am currently trying to find the eigenvectors for this 5x5 matrix but Matlab seems to be taking incredibly long to do ...

environ 2 ans il y a | 2 réponses | 0

2

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