ArciMath BigDecimal
Fast and improved BigDecimal class. [Commercial/Free]
url: users.belgacombusiness.net/arci/math/
32-bit Cyclic Redundancy Check (CRC) class
This check is used in numerous systems to verify the integrity of information. It's also used as a hashing function. [Open Source, Public Domain]
url: www.theorem.com/java/CRC32.java
Colt
High performance scientific and technical computing data structures and methods. (Open Source, Attribution)
url: tilde-hoschek.home.cern.ch/~hoschek/colt/index.htm
Decimal Arithmetic for Java
Improved BigDecimal class from IBM. [Open source]
url: www2.hursley.ibm.com/decimalj/
ILOG JSolver
A pure Java constraint-programming engine and a pure Java optimization library. [Commercial]
url: www.ilog.com/products/jsolver/
Java Financial Library
A library and quick application for financial software. [Open source, LGPL]
url: www.neuro-tech.net/archives/000032.html
Java Numerics
Working group that offers presentation, news, and libraries related to numerical computing.
url: math.nist.gov/javanumerics/
JeksParser
Parses and computes expressions or functions primarily for use in spreadsheet applications such as the example provided. [Beta Evaluation]
url: www.eteks.com/jeks/en/
JEP - Java Mathematical Expression Parser
Java classes for parsing and evaluating mathematical expressions. Supports multiple variables and user-defined functions. [Open source, GPL or commercial]
url: www.singularsys.com/jep/
JEPLite
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]
url: jeplite.sourceforge.net/
JFormula
A Java library for evaluating mathematical expression. It is compatible with the JDK 1.1 and later. [Shareware]
url: www.japisoft.com/
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]
url: www.held-mueller.de/JMatLink/
JMP - Sparse matrix library
A library for sparse matrix computations. Includes a sparse BLAS, many iterative solvers for different problems, sparse matrix I/O and parallelization. [Open source, GPL]
url: www.math.uib.no/~bjornoh/jmp/
JSpline+
For spline approximation, core matrix operations, and linear system solutions. [Commercial w/demo]
url: www.excelsior-usa.com/jspline/
JTKEvaluator
An advanced Java expression evaluator for adding high-performance, mathematical, Boolean and functional expression parsing and evaluation to Java applications. Time restricted evaluation version. [Open source, Commercial]
url: rollingsoft.com/JToolkit/jtkevaluator.htm
Math Parser
Package to parse and evaluate mathematical expressions at runtime. [Commercial]
url: www.bestcode.com/html/jbcparser.html
Mersenne Twister Pseudo Random Number Generator Classes
Offers multiple replacement implementations for java.util.Random. [Open Source]
url: www.theorem.com/java/Free.htm#MT
Significant Figures
Handles parsing, rounding, and displaying numbers for scientific applications.
url: ostermiller.org/utils/SignificantFigures.html
