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Decimal floating point library in Java. Provides decimal floating point math for Java via a clean, easy to understand implementation. Much easier to use than Big Decimal, nearly IEEE-854 compliant. Compatible with J2ME, so it can be used on PDAs/phon
Graph visualization using hyperbolic geometry (hyperbolic trees, but also general graphs).
Applications cover web site structures, topic maps, organisational charts and wikis.
A Matlab toolbox for interfacing with the pure JAVA numerical library Snifflib. This toolbox provides convenience m-files for interoperability with Snifflib from within an active Matlab session running a JAVA virtual machine.
Maximum entropy is a powerful method for constructing statistical models of classification tasks, such as part of speech tagging in Natural Language Processing. Several example applications using maxent can be found in the OpenNLP Tools Library.
A Javalibrary that works with Java3D to simulate and visualize, in real-time, dynamics of multiple rigid bodies that are restricted by implicit and explicit constraints (e.g., robotics); designed for efficiency, ease-of-use, and extensibility.
Clados is a java package that implements a multivector in a Clifford Algebra. Algebras (over real numbers) with any signatures may be used. A calculator and associated documentation is also included to help users learn how things work.
Java Metaheuristics (JMH) is a Javalibrary aimed at the design and implementation of exact and approximated algorithms for optimization problems. JMH is specifically tailored for the design of metaheuristic procedures.
A language modeling tool kit written in Java for natural language processing applications. It can handle character-by-character modeling of unknown words, language model combination, comparison, and evaluation, as well as a number of smoothing techniques
Wiki system engine that offers support for writing mathematics articles in physics, mathematics, biology, astronomy. Wiki engine is based on java servlet, java JSP technologies that offers variaty of platform independent features.
Fuzzy numbers and basic fuzzy arithmetics (+, -, *, /, 1/x) implementation written in Java. Should be used as a library, but it also has a GUI which demonstrates its capabilities (using SWT widgets).
JUNG provides a common and extendible language for the modeling, analysis, and visualization of data that can be represented as a graph or network.
New version now available on GitHub: https://github.com/jrtom/jung/releases/tag/jung-2.1
Mad Math is a Math API for Java that is aimed at adding needed math functions and formulas that are not in the regular Java Math API, such as fibonacci sequence, is prime, area formulas, greatest common factor, least common multiple etc.
A project to help students calculate symbolic derivatives and integrals. Plus, a Java expression tree library for developers who may need to do such things in their programs.
The project has moved to github: https://github.com/generalpenguin89/calchelper
G.A.V. (Graph Algorithm Visualizer) is a tool that visualizes algorithms from graph theory. A step-by-step visualization from each different algorithm allows the user to understand the particular algorithm very easily.
The project Intergeo co-funded by the Community programme eContentplus develops an open-source library for the common file format it defines to allow developers of dynamic geometry systems to quickly integrate read support for such files.
This is a project to wrap databases in order to use with java. The objective is to make the work with databases as easy as possible. In order to do this, every table will be wrap with a class of java.
JStatCom is a software framework that facilitates the creation of JAVA programs for data based analysis tasks in various domains. It provides ways to call routines from specialized software packages, like Matlab, Gauss, Ox, and possibly others.
The Java class library, that contains classes for calculation of different mathematical relations between object and number sequences and sets: Kendall distance, Spearman distance, similarity measure, L1 distance and others.
JMathLib is used to evaluate complex mathematical expressions and display the results graphically. It can be used either interactively or to interpret script files (m-files). It is a clone of Matlab, Octave, FreeMat, Scilab but written 100% in java.