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blitzwave is a c++ wavelet library building on the blitz++ array classes.
NOTE: blitzwave has moved to GitHub - the new project URL is http://github.com/oschulz/blitzwave/ .
A Scheme (guile) interface to a local version of the Encyclopedia of integer Sequences with many features for complex queries. URL of the encyclopedia (where the database can be downloaded from) is: www.research.att.com/~njas/sequences/