Announcement ------------ The Algebraic Domain Constructor DoCon-2.04, a computer algebra program written in Haskell, is available at http://www.botik.ru/pub/local/Mechveliani/docon/2.04/ ftp.botik.ru/pub/local/Mechveliani/docon/2.04/ What is new ----------- * Performancec tests for comparison to popular Axiom and MuPAD computer algebra programs (`strict' and non-functional systems) are refreshed and extended (see manual.ps); * DoCon was tested under the releases of ghc-5.02.2, 5.02.3; * Manual has become more readable, and it is in Postscript format; * Manual explains the relation of DoCon to Aldor language and Axiom system. DoCon-2.04 is a program package written in what we call Haskell-2-pre - certain functional extension of Haskell-98. Haskell-2-pre includes the multiparametric classes, overlapping instances, other minor features. DoCon-2.04 was tested under ghc-5.02.2, 5.02.3. Probably, it can be ported (with some effort) to other implementations. ----------------- Serge Mechveliani mechvel@botik.ru