# Sparse matrix

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## Sparse matrix

 Could anyone explain how these are stored internally.  For example if A(ny,nx) is sparse, and I write A(ky,kx) where ky and kx are subsets of ny,nx, How does Octave accomplish that? _______________________________________________ Help-octave mailing list [hidden email] https://lists.gnu.org/mailman/listinfo/help-octave
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## Re: Sparse matrix

 On 12/06/2017 09:08, Clinton Winant wrote: > Could anyone explain how these are stored internally.  For example if > A(ny,nx) is sparse, and I write A(ky,kx) where ky and kx are subsets of > ny,nx, How does Octave accomplish that? > https://www.gnu.org/software/octave/doc/interpreter/Storage-of-Sparse-Matrices.html#Storage-of-Sparse-MatricesRegards Marco _______________________________________________ Help-octave mailing list [hidden email] https://lists.gnu.org/mailman/listinfo/help-octave
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## Re: Sparse matrix

 > On 12 Jun 2017, at 13:02, Marco Atzeri <[hidden email]> wrote: > > On 12/06/2017 09:08, Clinton Winant wrote: >> Could anyone explain how these are stored internally.  For example if >> A(ny,nx) is sparse, and I write A(ky,kx) where ky and kx are subsets of >> ny,nx, How does Octave accomplish that? >> > > > https://www.gnu.org/software/octave/doc/interpreter/Storage-of-Sparse-Matrices.html#Storage-of-Sparse-Matrices> > Regards > Marco The following pubblication cuold also be helpful: https://arxiv.org/abs/cs/0604006c. _______________________________________________ Help-octave mailing list [hidden email] https://lists.gnu.org/mailman/listinfo/help-octave