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Topic: How do I use a sparse matrix that was returned by a mex file?
Replies: 5   Last Post: Mar 10, 2013 10:39 PM

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James Tursa

Posts: 2,326
Registered: 8/5/09
Re: How do I use a sparse matrix that was returned by a mex file?
Posted: Mar 9, 2013 1:09 PM
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"Alejandro " <> wrote in message <khfcj2$ij1$>...
> Hi all,
> Say I created a sparse matrix (say K) in a mex file and returned to matlab environment. I read that sparse matrix has no information of the sparsity and cannot be used in any other matlab function that uses a sparse matrix.

Wrong. If the sparse matrix was created correctly in the mex routine, you can use it just like any other sparse matrix that was created at the m-file level. You can use the FEX function spok to see if it was built properly:

James Tursa

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