The Java Algebra System (JAS) is an object oriented,
type safe and 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
using the JVM runtime infrastructure. The library can be used as any
other Java software package or it can be used interactively or
interpreted through a jython (Java Python) or jruby (Java Ruby)
front end, there is also an Android App based on Ruboto (jruby for
Android). The focus of JAS is at the moment on commutative, solvable
and non-commutative polynomials, power series, Groebner bases,
factorization, real and complex roots and applications. By the use
of Java as implementation language JAS is 64-bit and multi-core CPU
ready and can make use of mutiple CPUs where available. JAS can run
on a wide variety of devices ranging from Android to compute
clusters (using MPJ a Java Message Passing Interface (MPI) or
OpenMPI).