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:pari
<a href="http://pari.math.u-bordeaux1.fr/AUTHORS">PARI ÍŶÓ</a>
http://pari.math.u-bordeaux1.fr/
PARI/GP ÊÇÒ»¸ö·¶Î§¹ã·ºµÄÐÎʽ¼ÆËãϵͳ, Éè¼ÆÓÃÓÚ¿ìËÙËãÊõ¼ÆËã (Òò×Ó·Ö½â, ÊýµÄ´úÊýÀíÂÛ, ÍÖÔ²ÇúÏß...), ÓдóÁ¿º¯ÊýÓÃÓÚ¾ØÕó¼ÆËã, ÓÐÏÞÕ¹¿ª, ´úÊýÊýµÈ, Ò²ÓÐÐí¶à³¬Ô½º¯Êý. 
:maxima

http://maxima.sourceforge.net/
Maxima ÊÇ´¦Àí·ûºÅ¼°ÊýÖµ±í´ïʽµÄϵͳ, °üº¬Î¢·Ö, »ý·Ö, Taylor¼¶Êý, Laplace±ä»», ³£Î¢·Ö·½³Ì, ÏßÐÔ·½³Ì×é, ¶àÏîʽ, ¼¯ºÏ, Áбí, ÏòÁ¿, ¾ØÕó¼°ÕÅÁ¿. Maxima ͨ¹ýʹÓþ«È··ÖÊý, ÈÎÒ⾫¶ÈÕûÊýÒÔ¼°±ä¾«¶È¸¡µãÊýµÄ·½·¨¿ÉÒԵõ½¸ß¾«¶ÈµÄÊýÖµ½á¹û.
:graphviz
<a href="http://www.graphviz.org/Credits.php">´´×÷ÍŶÓ</a>
http://www.graphviz.org/
ͼµÄÊÓ¾õ»¯(graphviz)¿ÉÓÃÀ´ÏÔʾ³éÏóͼ¼°ÍøÂçµÄ½á¹¹ÐÅÏ¢. ¿ÉÓÃÓÚÈí¼þ¹¤³Ì, Êý¾Ý¿â¼°ÍøÂçÉè¼Æ, Ðí¶àÁìÓòµÄÊÓ¾õ½çÃæµÈ.
¿Éͨ¹ý½Å±¾¿â <tt>graph/graphviz</tt>, <tt>draw/graphviz</tt> ÒÔ¼° <tt>draw/graphvizpoints</tt> À´Ê¹ÓÃ

:gap
<a href="http://www.gap-system.org/Contacts/People/people.html">GAP ÍŶÓ</a>
http://www.gap-system.org/
GAP ÊÇÀëÉ¢´úÊýµÄ¼ÆËãϵͳ, ÌØ±ð×¢ÖØ¼ÆËãȺÂÛ. GAP ÌṩһÖÖ³ÌÐòÓïÑÔ, ¼¸Ç§¸öÒÔ GAP ÓïÑÔд³ÉµÄÓÉ´úÊýËã·¨ÒÆÖ²µÄº¯Êý, ÒÔ¼°¾Þ´óµÄ´úÊý¶ÔÏóÊý¾Ý¿â. GAP ¿ÉÓÃÓÚȺ¼°Æä±íʾ, »·, ÏòÁ¿¿Õ¼ä, ´úÊý, ×éºÏ½á¹¹µÈµÄ¿ÆÑÐÓë½Ìѧ.
:float_calc,integer_calc

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

:yacas
<a href="http://yacas.sourceforge.net/credits.html">´´×÷ÍŶÓ</a>
http://yacas.sourceforge.net/homepage.html
YACAS ÊÇÒ×ÓÚʹÓõļÆËã´úÊýϵͳ, ÓÃÓÚÊýѧ±í´ïʽµÄ·ûºÅ²Ù×÷. ËüʹÓÃÕë¶Ô·ûºÅ¼°ÈÎÒ⾫¶ÈµÄÊýÖµ¼ÆËãµÄ×ÔÓÐÓïÑÔ. ϵͳÓÐÒ»¸öÒÆÖ²ÁËÐí¶à·ûºÅ´úÊýËã·¨µÄ½Å±¾¿â, »¹¿ÉÒÔÌí¼ÓеÄËã·¨µ½¿âÖÐ. YACAS ×Ô´øµÄÎļþº­¸ÇÁËËùʹÓõĽű¾ÓïÑÔ, º¯ÊýÒÔ¼°Ëã·¨.

:jmol


:geogebra

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