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Alexander Holmes


Last seen: mehr als 2 Jahre vor |  Aktiv seit 2018

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Fast method for findings which rows of a matrix are contained in another
I have two matrices, and . The rows of are a subset of the rows of , and I want to find the row indices of the rows in that c...

etwa 4 Jahre vor | 2 Antworten | 0

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Solving similar sets of equations multiple times
I have several systems of equations that I want to solve. At each iterations, there's maybe fifty or so sets og equations I want...

mehr als 4 Jahre vor | 0 Antworten | 0

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left eigenvectors using eigs with sparse matrices
Is there any way of using eigs (not eig) to calculate left eigenvectors of a sparse matrix?

mehr als 4 Jahre vor | 1 Antwort | 0

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Produce equality matrix based on elements in vector.
Given two equally sized vectors A and B, is there any way to make a matrix C of 1's and zero's such that the kth row of C contai...

mehr als 4 Jahre vor | 4 Antworten | 0

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Using eigs with singular matrix
I want to calculate the eigenvector corresponding to the 0 eigenvalue of a large, sparse singular matrix. However, if I try eigs...

fast 5 Jahre vor | 1 Antwort | 0

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Linear equations with symbolic matrix
I have a set of equations of the form Ax=b, but some of the elements in the matrix are also variables (one variable (y) which I ...

mehr als 5 Jahre vor | 3 Antworten | 0

3

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Restricting domain of values fzero will try
I am using fzero along with an implementation of the gillespie algorithm to determine a parameter (I know the vale of a paramete...

etwa 6 Jahre vor | 2 Antworten | 0

2

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Error with parallel toolbox
I tried running code on a cluster using batch which I fills a 10000 by 10000 matrix with random numbers. I have a script runT...

etwa 6 Jahre vor | 1 Antwort | 0

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