:pari
<a href="http://pari.math.u-bordeaux1.fr/AUTHORS">PARI Ŷ</a>
http://pari.math.u-bordeaux1.fr/
PARI/GP һΧ㷺ʽϵͳ, ڿ (ӷֽ, Ĵ, Բ...), дھ, չ, , Ҳ೬Խ. 
:maxima

http://maxima.sourceforge.net/
Maxima Ǵżֵʽϵͳ, ΢, , Taylor, Laplace任, ΢ַ, Է, ʽ, , б, , . Maxima ͨʹþȷ, ⾫Լ侫ȸķԵõ߾ȵֵ.
:graphviz
<a href="http://www.graphviz.org/Credits.php">Ŷ</a>
http://www.graphviz.org/
ͼӾ(graphviz)ʾͼĽṹϢ. , ݿ⼰, Ӿ.
ͨű <tt>graph/graphviz</tt>, <tt>draw/graphviz</tt> Լ <tt>draw/graphvizpoints</tt> ʹ

:gap
<a href="http://www.gap-system.org/Contacts/People/people.html">GAP Ŷ</a>
http://www.gap-system.org/
GAP ɢļϵͳ, رעؼȺ. GAP ṩһֳ, ǧ GAP дɵɴ㷨ֲĺ, Լ޴Ĵݿ. GAP Ⱥʾ, , ռ, , ϽṹȵĿѧ.
:float_calc,integer_calc

http://www.gnu.org/software/bc/
interface to bc ; bc -l

:yacas
<a href="http://yacas.sourceforge.net/credits.html">Ŷ</a>
http://yacas.sourceforge.net/homepage.html
YACAS ʹõļϵͳ, ѧʽķŲ. ʹԷż⾫ȵֵ. ϵͳһֲŴ㷨Ľű, µ㷨. YACAS ԴļʹõĽű, Լ㷨.

:jmol


:geogebra