[Haskell-cafe] ANN: permutation-0.2
patperry at stanford.edu
Sun Dec 7 21:09:44 EST 2008
I've uploaded a new version of the permutation library to hackage.
Here is the package description:
This library includes data types for storing permutations. It
implements pure and impure types, the latter which can be modified
in-place. The main utility of the library is converting between
the linear representation of a permutation to a sequence of swaps.
This allows, for instance, applying a permutation or its inverse
to an array with O(1) memory use.
Much of the interface for the library is based on the permutation
functions in the GNU Scientific Library (GSL).
Here's the url:
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