A *(Computer Algebra System).

From <em>Bibliography on the MACSYMA, VAXIMA and maxima symbolic algebra languages</em> (see below):
<blockquote>
[..]

MACSYMA, possibly the oldest surviving computer symbolic algebra system, was developed starting about 1968 at the Massachusetts Institute of Technology, using the MACLISP dialect of the _(Lisp) _(programming language).
The name stood for Project MAC's SYmbolic MAnipulation System, and MAC stands for Man and Computer, or for Machine Aided Cognition.

[..]
</blockquote>

<ul class="links">
<li>_("macsyma.bib"|http://www.math.utah.edu:8080/pub/tex/bib/macsyma.bib) (also via _("ftp"|ftp://ftp.math.utah.edu/pub/tex/bib/macsyma.bib)), <em>Bibliography on the MACSYMA, VAXIMA and maxima symbolic algebra languages</em> by _("Nelson H. F. Beebe"|http://www.math.utah.edu/~beebe) (see also _("The Collection of
Computer Science Bibliographies"|http://liinwww.ira.uka.de/bibliography/Math/macsyma.html)).
<li>Description of _("descendants of M.I.T. Macsyma"|http://www.can.nl/systems_and_packages/per_purpose/general/macsyma.html) at _("CAIN"|http://www.can.nl/).
<li>_("Macsyma, MAXIMA, Vaxima, ..."|http://www.symbolicnet.org/systems/macsyma.html): another description of MACSYMA descendants from _("SymbolicNet"|http://www.symbolicnet.org/).
</ul>

<ul class="implementations">
<li>_("Maxima"|http://maxima.sourceforge.net/) at _(SourceForge) under _(GPL). The original _("DOE-MACSYMA"|http://www.ma.utexas.edu/maxima.html) (Department of Energy's MACSYMA) from which it descends.
<li>Apparently _("ScienTek"|http://www.scientek.com/), a Korean company, is still offering support for the commercial version of _("Macsyma"|http://www.scientek.com/macsyma/main.htm) by _("Macsyma, Inc."|http://www.macsyma.com/) (_(MIA)), which went out of business in 1999, according to <strong>macsyma.bib</strong> (see above).
</ul>
