The mathExpr library provides classes to parse and evaluate mathematical expressions.

The jgimmick package provides useful swing gadgets: a jog wheel and a timer control panel.

The projgeom package is a metric-neutral framework for working with Pluecker line geometry and Lie sphere geometry in their natural embeddings as Cayley-Klein geometries in projective 5-space.

This package provides a 2D scene graph api based on the rendering capabilities of java.awt.Graphics2D.

tool box for the facetedge package

The discretegroup package is a metric-neutral framework for working with the fundamental groups of 2- and 3-dimensional euclidean, hyperbolic, and spherical orbifolds and manifolds, with particular focus on a visualization link to jReality.

Lots of interfaces that describe different domains and functions.

jPETScTao is the name for a Java project, that tries to make a part of the functionality of two numeric libraries PETSc and Tao accessible for Java programs. It utilizes the JNI to achieve that. See

Provides the classes for a facet edge data structure.

mfc provides mathematical foundation classes, e.g., complex numbers, polynomials, 2x2-matrices, fractional linear transformations, quaternions.

Provides the classes for a half-edge data structure.

The ellipticFunctions package provides a library for elliptic functions. Some of the most famous mathematicions of the 18th-century, like Abel, Gauss, Jacobi, or Weierstrass, contributed to this subject and opend a complete new field in mathematics.

jRWorkspace is a plugin based user interface SDK. Originally designed as a plugin system for jReality it has become an independent tool to build user interfaces of complex modular applications.

The package numericalMethods is a collection of mostly standard routines providing numerical solutions for many common problems in algebra, calculus, and geometry.