### FREE Software Packages for Computational Algebra

From time to time we will give you information about special purpose

software packages which have gained popularity among users worldwide

and are available free. Here are two of those for Computational Algebra:

Fermat:

Fermat is a Mac, Windows and Linux algebra package, strongly optimised

for polynomial and matrix algebra, over the rationals and finite fields. It

does arithmetic of arbitrarily long integers and fractions, symbolic

calculations, matrices over polynomial rings, graphics, etc.

It does not consume much memory and is very fast. It was developed

by Robert Lewis of Fordham University, NY and is available here:

http://bway.net/~lewis/ At this site you can also look at some

interesting papers based on research projects in which Fermat was used.

FELIX:

Felix was developed by the Computer algebra Group at Leipzig

University, Germany and is Available at http://felix.hgb-leipzig.de

Felix is used for computation in commutative and non-commutative

rings and modules. Versions for Windows, Linux and Solaris systems are

available at that site.