Home > Computers > Programming > Languages > Java > Class Libraries > Math and Calculations
Mathematical class libraries for use in Java.
http://users.belgacombusiness.net/arci/math/
Fast and improved BigDecimal class. [Commercial/Free]
http://www.singularsys.com/autoabacus/
An equation solving library that finds solutions to equation sets. A set of equations can be passed in as text, while AutoAbacus attempts to find a solution that satisfies all constraints. [Commercial, trial version]
http://igsl.sourceforge.net/
Search algorithms on graphs implicitly given by tree node expansion operator and edge transition cost function. Site includes short description and download option. [GNU Library or LGPL]
http://math.nist.gov/javanumerics/
Working group that offers presentation, news, and libraries related to numerical computing.
http://www.eteks.com/jeks/en/
Parses and computes expressions or functions primarily for use in spreadsheet applications such as the example provided. [Beta Evaluation]
http://www.singularsys.com/jep/
Java classes for parsing and evaluating mathematical expressions. Supports multiple variables and user-defined functions. [Open source, GPL or commercial]
http://jeplite.sourceforge.net/
A light-weighted (re)implementation of the Java Expression Parser (jep.sourceforge.net). The intention is to strip some of its not-so-often-used features, and thus speeding the rest. Includes expression optimizer. [Open source, GPL]
http://www.japisoft.com/
A Java library for evaluating mathematical expression. It is compatible with the JDK 1.1 and later. [Shareware]
http://jgrapht.org/
A class library that provides mathematical graph-theory objects and algorithms. JGraphT supports a rich gallery of graphs and is designed to be powerful, extensible and easy to use. [Open source, LGPL]
http://www.jmathlib.de/
Java clone of FreeMat, Matlab, Octave and Scilab. Site includes documentation, handbook, demos, and download option. [GPL, LGPL]
http://jmathtools.sourceforge.net/
A mathematical Java toolbox designed to be easily used and modified for scientific software engineering. [Open source, BSD License]
http://www.held-mueller.de/JMatLink/
Connects Java and MATLAB. Native methods make it possible to use MATLAB's computational engine inside your own java applications, applets and servlets. [Freeware, source available]
http://www.spaceroots.org/software/mantissa/index.html
A class library devoted to simulation, including an ODE solving package, as well as least square estimators, solvers, polynomials, basic statistics features. [Open source, BSD-like]
http://www.bestcode.com/html/jbcparser.html
Package to parse and evaluate mathematical expressions at runtime. [Commercial]
http://ostermiller.org/utils/SignificantFigures.html
Handles parsing, rounding, and displaying numbers for scientific applications.
http://numericalmethod.com/
Java mathematical, numerical, and statistical library, providing classes representing many mathematical concepts. Site includes examples and a free trial download. The proprietary license looks quite "interesting".
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