RCWA is a package for the computer algebra system GAP.
It provides implementations of algorithms and methods for computing
in certain infinite permutation groups.
The class of groups which RCWA in principle can deal with includes
the finite groups, the free groups of finite rank, the free products
of finitely many finite groups, certain infinite simple groups,
certain divisible torsion groups and groups of many further types.
It is closed under taking direct products and under taking wreath
products with finite groups and with the infinite cyclic group (Z,+).
RCWA is free software. It is distributed by the author and redistributed by the GAP Group.