Java Algebra System (JAS) 2.4.3918

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**

The Jython and JRuby scripting classes PolyRing are now injecting the polynomial ring variables into the top level interpreter environment by default. There is a new class GroebnerBaseFGLM to compute a Gröbner base according to the "FGLM" algorithm. It computes a Gröbner base with respect to a graded term order and then constructs the Gröbner base with respect to the requested term order via linear algebra in the residue class ring. A new launcher shell script jas. Small fixes, improvements, and a missing method implemented and in PolyUtilApp.

**URL:** Java Algebra System (JAS)