permutation: A library for representing and applying permutations.

This library includes data types for storing permutations. It implements pure and impure types, the latter of which can be modified in-place. The main utility of the library is converting between the linear representation of a permutation and 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).

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• permutation-0.2.1.tar.gz [browse] (Cabal source package)
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• PatrickPerry, spacekitteh

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