

Sage A free mathematics software system licensed under the GPL. It combines the power of many existing opensource packages into a common Pythonbased interface. Details of features , download , and developer information. sagemath.org/ 

Simulations, Models & Worksheets This website delivers resources for users of Maple , Mathcad and VisSim. It provides engineering and maths worksheets , together with tutorials , hints tips. sites.google.com/site/nueropta/ 

Singular Systems: Jep. Net A . Net library for parsing and evaluating mathematical expressions. www.singularsys.com/jep.net/ 

SpeQ Mathematics Small , extensive mathematics program with a simple interface. All calculations are entered in a sheet. Users can define variables and functions , and plot graphs of functions. www.speqmath.com/ 

Spline Forte A program for Spline interpolation and fitting. It can fit a set of data with several orthogonal polynomials and various Lp norm values. Fitting result can be exported as subroutine. Spline Forte is especially useful for sensors linearization and automa www.andrijar.com/splinef.htm 

Symaxx Graphical frontend for the Maxima computer algebra system. symaxx.sourceforge.net/ 

The ACTS Toolkit A set of DOEdeveloped software tools that make it easier for programmers to write high performance scientific applications for parallel computers. acts.nersc.gov/ 

VisualMath For Java An online symbolic math and computer algebra system. www.drhuang.com/ 

Web Components for Mathematics Java library for creating interactive , graphing applets. Includes WCMGrapher , an application for making graphs to paste into other programs. Free , Windows/Macintosh/Linux webcompmath.sourceforge.net/ 

Yacas Computer Algebra System Acronym for Yet Another Computer Algebra System , an opensource software package. Supports arbitrary precision arithmetic , matrices , and differential and integral calculus. yacas.sourceforge.net/ 
