On Sat, 12 Sep 2015, Frank Kampas wrote:
Is it possible to create sparse matrices with a rank other than 2?
I'll let the Julia experts answer this question (I suspect the answer
is no). However, I'm curious -- what is your use-case? Do you have a
problem requiring sparse arrays of dimension 3 or more? What is the
problem?
From my limited knowledge, sparse matrices arise from a small set of
typical problems:
* Differentiation operators in finite difference problems.
* Finite element analysis
* Representation of graphs
What kinds of problems would require sparse arrays of more than 2
dimensions?
Stuart
