Re: [Haskell-cafe] Is the following implemented by a sparse matrix representation? type Graph n w = Array (n, n) (Maybe w)

The standard array types, such as "Array (n,n) (Maybe w)" will be implemented as a dense array. If you want to use a sparse matrix, you will explicitly have to ask for it. For instance by using something like "IntMap (IntMap w)" or "Map (n,n) w" or "Array n (IntMap w)". Each of these representations is slightly different, and there will be different trade-offs. Twan On 09/07/13 23:26, KC wrote:

Is the following implemented by a sparse matrix representation? type Graph n w = Array (n,n) (Maybe w)

-- -- Regards, KC