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Lennart Sinjorgo


Last seen: Today |  Active since 2020

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Cholesky vs Eigs speed comparison?
I have many large (8000 x 8000) sparse PSD matrices for which I would like to verify that their largest eigenvalue is at most so...

1 month ago | 1 answer | 0

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Matlab editor settings: notify undefined variables
Matlab points out variables that are unused in my functions, which is great. I would also like matlab to point out that some v...

7 months ago | 2 answers | 0

2

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MatLab eig vs LAPACK
It appears that there exist some LAPACK function 'syevd' for computing the eigenvalue decomposition of dense symmetric matrices....

2 years ago | 1 answer | 0

1

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Sum elements over indices in cell array
I have a cell array, in which each cell is a vector of integer numbers. These numbers are certain indices of another vector, say...

2 years ago | 1 answer | 0

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Plotting a complete multipartite graph
The adjacency matrix of the complete multipartite graph is mostly a matrix of all ones. Except on the diagonal there are blocks ...

4 years ago | 0