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Sparse Arrays

Name: Anonymous 2011-12-23 0:08

Alright /proglodites/, let's hear how all of you implement a sparse arrays that stores two-dimensional data.

Name: Anonymous 2011-12-24 15:46

def (SparseMatrix = Hash.dup).new(h); h.default = 0; h; end



# example:

sm = SparseMatrix.new( [1, 2] => 4.14, [-1, 0] => 6.23 )

p sm[[1, 2]], sm[[3, 5]]

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