Sparse matrices that represent common stencil operations

Question

I am not sure if this is the correct place to ask this question!

Is there a data set such as the University of Florida Sparse Matrix Collection which is produced from stencil operations?

Or is there a way to generate such sparse matrices, maybe using Matlab?

Jan · Accepted Answer · 2013-11-23 14:29:31Z

1

I assume that you are looking for matrices that come from, e.g., finite differences applied to a PDE.

You may try the matrix market. There you can search for matrices from common PDE applications.

In Matlab there is the function del2 that returns a matrix representing a discrete Laplace operator.

answered Nov 23, 2013 at 14:29

Jan

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$\begingroup$ I am really not sure what is the origin of stencil operations! $\endgroup$
– The Hiary
Commented Nov 23, 2013 at 16:23
$\begingroup$ In the field of numerical analysis, I know the stencil as an illustration of the geometric arrangement of the nodes that are used to approximate a differential operator e.g. via finite differences. See the Wikipedia article although it is not very extensive. $\endgroup$
– Jan
Commented Nov 23, 2013 at 16:43

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