The Java Algebra System (JAS) is an object oriented, type safe, multi-threaded approach to computer algebra. JAS provides a well designed software library using generic types for algebraic computations implemented in the Java programming language. The library can be used as any other Java software package, or it can be used interactively or interpreted through a Jython or JRuby front end. The focus at the moment is on commutative and solvable polynomials, power-series, multivariate polynomial factorization, Gröbner bases, and applications.

Changes:

This release contains new distributed Gröbner base algorithms based on the Java bindings of OpenMPI similarly to the MPJ version. Since both MPI and MPJ are not thread-safe, a work-around was developed to split the transport layer to allow selection of TCP/IP sockets or MPI/MPJ channels for transport. The socket-based distributed hash table now implements the clear() method, which solves non-specific errors in iterated distributed Gröbner base computations. The solvable multiplications have been simplified. Fixes and improvements have been made for Jython and JRuby scripts.

URL: Java Algebra System (JAS)

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