Some Applications
Set::IntRange - sets of integers (universe = some interval)
Math::MatrixBool - useful for graph algorithms
(e.g. shortest paths / Kleene's Algorithm)
Slice (multiple document version generator)
Parse table generators for compiler-compilers à la "yacc"
(calculating first, follow & lookahead character sets)
Cryptography
Easy manipulation of data (files), any number of bits at a time