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Add support for band #21

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dlfivefifty opened this issue Sep 26, 2016 · 2 comments
Open

Add support for band #21

dlfivefifty opened this issue Sep 26, 2016 · 2 comments

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@dlfivefifty
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The following that works for a BandedMatrix and should also work with a ToeplitzMatrix:

A[band(1)] # get the first super-diagonal as a vector
A[band(-1)] = 2  # set all entries on the first sub-diagonal to 2

This is accomplished by band returning a type Band. Maybe Band could be moved into another package that both ToeplitzMatrices.jl and BandedMatrices.jl depend on? (MatrixBands.jl?)
@MikaelSlevinsky
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could have antiband for Hankel matrices 😆

@jishnub
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jishnub commented May 31, 2023

With the addition of package extensions in Julia v1.9, it seems like a good time to revive this

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@dlfivefifty @MikaelSlevinsky @jishnub