Above image created with the old float version of Fermat.

Compare Your Computer Algebra System. Take the Fermat Tests! September 2015.

Fermat is freeware. Those who have grant money are requested to contribute $70 per installed machine.

New 64 bit Versions of Fermat Now Available, Version 5.21 November 25, 2015

   ball Mac OS X Intel Version of Fermat Now Available. 3.9.9x, revised March 28, 2013

Float Versions of Fermat Now Available. April 22, 2015

Fermat Linux as a C Library. revised November 25, 2015

   ball Mac OS X G3-G5 Version of Fermat Available. 3.9.9x, revised October 8, 2010

   ball Linux Version of Fermat Now Available. 3.9.9x, revised March 28, 2013

   ball New Windows Version of Fermat. 3.9.9x, March 28, 2013

   ball Unix Version of Fermat Available. 3.6.9, revised December 15, 2005

   ball Old Obsolete Windows Version of Fermat. 3.6.9, revised October 29, 2007

   ball Mac OS 9 Version of Fermat Available. 3.7.0, revised October 29, 2007

   ball Source Code for Old Windows Version Available. April 17, 2010

   ball Source Code for FFermat Now Available. January 19, 2009

   ball Fermat Very Impressive in Comparison of Computer Algebra Systems

   ball HTML and PDF Versions of the Manuals:

Revised PDF and HTML Manuals for Linux,Windows, and OS X. July 25, 2011

  Here is a documented collection of functions that implement the Dixon-EDF method for solving systems of polynomial equations in Fermat.

   ball Data From 2004: Fermat is Overall Best in the World at Polynomial GCD

  A. von Manteuffel, E. Panzer, and R. Schabinger. "On the Computation of Form Factors in Massless QCD with Finite Master Integrals," http://arxiv.org/abs/1510.06758, October 2015.
  J. Ablinger, A. Behring, J. Blumlein, A. De Freitas, A. von Manteuffel, C. Schneider. "Calculating Three Loop Ladder and V-Topologies for Massive Operator Matrix Elements by Computer Algebra," arXiv:1509.08324, September 2015.
  Li, von Manteuffel, Schabinger, Zhu, "Soft-virtual corrections to Higgs production at N^3LO". arXiv, December 2014.
  Ablinger, Blumlein, DeFreitas, Hasselhuhn, von Manteuffel, Round, Schneider, Wissbrock, "The transition matrix element Agq(N) of the variable flavor number scheme at O(alpha s^3)". Nuclear Physics B, February 2014.
  Sebastiano Vigna, "An experimental exploration of Marsaglia's xorshift generators, scrambled". Universita degli Studi di Milano, Italy. http://vigna.di.unimi.it/ftp/papers/xorshift.pdf. May 2014.
  Maierhofer, P., Marquard, P., Complete three-loop QCD corrections to the decay H+gamma. Zbl 1307.81067. Phys. Lett., B 721, No. 1-3, 131-135 (2013).
  Sturm, Christian. Leptonic contributions to the effective electromagnetic coupling at four-loop order in QED. Zbl 1282.81201. Nucl. Phys., B 874, No. 3, 698-719 (2013).
   Schneider, Carsten (ed.) et al., Computer algebra in quantum field theory. Integration, summation and special functions. Wien: Springer (ISBN 978-3-7091-1615-9/hbk; 978-1-4614-8523-0/ebook). Texts and Monographs in Symbolic Computation, 361-379 (2013).

Revised Manual for Linux and OSX. July 25, 2011

ball Suggested donation $70, using PayPal. (You don't have to have a PayPal account.)