Maxima's development history spans three distinct periods: The
research project at MIT, the stewardship of William Schelter and the
current Maxima project.

MACSYMA (Project MAC's SYmbolic MAnipulation System) was developed by
the Mathlab group of the MIT Laboratory for Computer Science
(originally known as Project MAC), during the years 1969-1972.  Their
work was supported by grants NSG 1323 of the National Aeronautics and
Space Administration, N00014-77-C-0641 of the Office of Naval
Research, ET-78-C-02-4687 of the U.S. Department of Energy, and
F49620-79-C-020 of the U.S. Air Force.  MACSYMA was further modified
for use under the UNIX operating system (for use on DEC VAX computers
and Sun workstations), by Richard Fateman and colleagues at the
University of California at Berkeley; this version of MACSYMA is known
as VAXIMA.

William Schelter developed and maintained this version, Maxima, from
the project's inception until his untimely death in 2001. We are
eternally grateful for his enormous contribution.

William Schelter thanked the following people for having tested
the code under various common lisp implementations, and for helpful
comments:

hagiya%kurims.kurims.kyoto-u.junet%utokyo-relay.csnet@RELAY.CS.NET
  		(in kcl aosv)
steve@spock.ncsa.uiuc.edu  (Steve on sun/franz common lisp)
spar!malcolm@decwrl.dec.com (malcolm) sun/lucid
raible@orville.nas.nasa.gov (Eric Raible on iris(kcl))
fateman@peoplesparc.Berkeley.EDU (Richard Fateman)


In November, 2001, the Maxima project moved to the Sourceforge
project hosting site. The following people contributed to the Maxima
sourcecode (according to Git logs):

Contributors in 2020
====================
Dan Gildea
David Billinghurst
Gunter Königsmann
John Scott
Kris Katterjohn
Lakshya A Agrawal
Leo Butler
Raymond Toy
Robert Dodier
Viktor T. Toth
Volker van Nek
Wolfgang Dautermann
Yasuaki Honda

Contributors in 2019
====================
Andreas Eder
Dan Gildea
David Scherfgen
Elias Mårtenson
Gunter Königsmann
Jaime E. Villate
Kris Katterjohn
Lakshya A Agrawal
Leo Butler
Marduk Bolanos
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Sergey Litvinov
Viktor T. Toth
Wolfgang Dautermann

Contributors in 2018
====================
Dan Gildea
David Billinghurst
David Scherfgen
Elias Mårtenson
Fabrizio Caruso
Gunter Königsmann
Jaime E. Villate
Jarno Malmari
Kris Katterjohn
Leo Butler
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Sergey Litvinov
Tarn Burton
Viktor T. Toth
Volker van Nek
Wolfgang Dautermann

Contributors in 2017
====================
Andreas Eder
Barton Willis
Dan Gildea
David Billinghurst
David Scherfgen
Fabrizio Caruso
Gunter Königsmann
Jaime E. Villate
Kris Katterjohn
Leo Butler
Mario Rodriguez Riotorto
Martin Saturka
Raymond Toy
Robert Dodier
Sergey Litvinov
Viktor T. Toth
Volker van Nek
Wolfgang Dautermann
Yasuaki Honda

Contributors in 2016
====================
Andreas Eder
Andrej Vodopivec
Dan Gildea
David Billinghurst
David Scherfgen
Gunter Königsmann
Jaime E. Villate
Kris Katterjohn
Leo Butler
Litvinov Sergey
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Sergey Litvinov
Viktor T. Toth
Volker van Nek
Wolfgang Dautermann

Contributors in 2015
====================
Andrej Vodopivec
Barton Willis
Dan Gildea
David Billinghurst
David Scherfgen
Gunter Königsmann
Ingo Feinerer
Jaime E. Villate
Jorge Barros de Abreu
Kris Katterjohn
Leo Butler
Litvinov Sergey
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Rupert Swarbrick
Sergey Litvinov
Viktor T. Toth
Volker van Nek
Wolfgang Dautermann
Yasuaki Honda

Contributors in 2014
====================
Andrej Vodopivec
Barton Willis
Dan Gildea
David Billinghurst
Jaime E. Villate
Jorge Barros de Abreu
Kris Katterjohn
Leo Butler
Litvinov Sergey
Mario Rodriguez Riotorto
Nils Bruin
Raymond Toy
Robert Dodier
Rupert Swarbrick
Sergey Litvinov
Viktor T. Toth
Volker van Nek
Yasuaki Honda

Contributors in 2013
====================
Andreas Eder
Andrej Vodopivec
Barton Willis
Dan Gildea
David Billinghurst
Jaime E. Villate
Jorge Barros de Abreu
Kris Katterjohn
Leo Butler
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Rupert Swarbrick
Volker van Nek

Contributors in 2012
====================
Andreas Eder
Andrej Vodopivec
Barton Willis
Dan Gildea
David Billinghurst
Jaime E. Villate
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Volker van Nek
Yasuaki Honda

Contributors in 2011
====================
Andreas Eder
Andrej Vodopivec
Barton Willis
Dan Gildea
Dan Stanger
David Billinghurst
Dieter Kaiser
Douglas Crosher
Jaime E. Villate
Leo Butler
Mario Rodriguez Riotorto
Mark H. Weaver
Raymond Toy
Robert Dodier
Viktor T. Toth
Yasuaki Honda

Contributors in 2010
====================
Andreas Eder
Andrej Vodopivec
Barton Willis
Dan Gildea
David Billinghurst
Dieter Kaiser
Jaime E. Villate
Leo Butler
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Viktor T. Toth
Volker van Nek

Contributors in 2009
====================
Alexey Beshenov
Andreas Eder
Andrej Vodopivec
Barton Willis
Dan Gildea
David Billinghurst
Dieter Kaiser
Douglas Crosher
Jaime E. Villate
James Amundson
Leo Butler
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Viktor T. Toth
Volker van Nek
Yasuaki Honda

Contributors in 2008
====================
Alexey Beshenov
Andreas Eder
Andrej Vodopivec
Barton Willis
Dan Gildea
David Billinghurst
Dieter Kaiser
Douglas Crosher
Harald Geyer
Jaime E. Villate
James Amundson
Juan Pablo Romero Bernal
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Stavros Macrakis
Vadim V. Zhytnikov
Viktor T. Toth
Volker van Nek
Yasuaki Honda

Contributors in 2007
====================
Andreas Eder
Andrej Vodopivec
Andrey Grozin
Barton Willis
Dan Gildea
Dan Stanger
David Billinghurst
Douglas Crosher
Harald Geyer
Jaime E. Villate
Jay Belanger
Jorge Barros de Abreu
Juan Pablo Romero Bernal
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Stavros Macrakis
Vadim V. Zhytnikov
Viktor T. Toth
Volker van Nek

Contributors in 2006
====================
Andrej Vodopivec
Andrey Grozin
Barton Willis
Dan Stanger
David Billinghurst
Douglas Crosher
Jaime E. Villate
Jay Belanger
Jorge Barros de Abreu
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Vadim V. Zhytnikov
Viktor T. Toth
Volker van Nek

Contributors in 2005
====================
Andrej Vodopivec
Barton Willis
Cliff Yapp
Dan Stanger
David Billinghurst
James Amundson
Jay Belanger
Jorge Barros de Abreu
Mario Rodriguez Riotorto
Raymond Toy
Robert Dodier
Vadim V. Zhytnikov
Viktor T. Toth
Wolfgang Jenkner

Contributors in 2004
====================
Camm Maguire
Cliff Yapp
David Billinghurst
James Amundson
Jay Belanger
Raymond Toy
Robert Dodier
Vadim V. Zhytnikov
Viktor T. Toth
Wolfgang Jenkner

Contributors in 2003
====================
Camm Maguire
Cliff Yapp
David Billinghurst
James Amundson
Jay Belanger
Mike Clarkson
Raymond Toy
Vadim V. Zhytnikov
Wolfgang Jenkner

Contributors in 2002
====================
Camm Maguire
Cliff Yapp
Dan Stanger
David Billinghurst
James Amundson
Jay Belanger
Mike Clarkson
Raymond Toy
Vadim V. Zhytnikov
Wolfgang Jenkner

Contributors in 2001
====================
James Amundson
Jay Belanger
Vadim V. Zhytnikov
William F. Schelter

Contributors in 2000
====================
William F. Schelter


Maxima also includes contributions from:

Michel van den Bergh
Karl Berry
Salvador Bosch Pérez
Fedor Bezrukov
Fabrizio Caruso
Ari Constancio
Gosei Furuya
Juan Pablo Hierro Álvarez
Vadim Konovalov
Tim Moore
Guenther Nowak
Kostas Oikonomou
Edmond Orignac
Valerij Pipin
Jose Ramirez Labrador
Ole Rohne
Thomas A. Russ
Marek Rychlik

Starting with version 5.9.0, Maxima uses mk::defsystem and (slightly
modified) run-lisp from the Common Lisp Open Code Collection,
<http://clocc.sourceforge.net>.

The nregex code was written by Lawrence E. Freil.

We also want to say thank you to everyone who sent patches,
reported bugs or suggested new features.

