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What is the difference between dense and sparse matrices?

asked 2012-10-24 09:04:05 -0500

SLOtoSF gravatar image

And when would I use which?

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answered 2012-10-24 13:44:02 -0500

Jason Grout gravatar image

Dense matrices store every entry in the matrix. Sparse matrices only store the nonzero entries. Sparse matrices don't have a lot of extra features, and some algorithms may not work for them. You use them when you need to work with matrices that would be too big for the computer to handle them, but they are mostly zero, so they compress easily.

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Asked: 2012-10-24 09:04:05 -0500

Seen: 11,722 times

Last updated: Oct 24 '12