Geometry Websites

Shows paper models of polyhedra.

Presents problems involving circles and triangles, with proofs, SAT practice quizzes and famous quotes. Also, has examples of geometry in Peruvian culture.

A new type of geometric construction that was discovered by Dan Litchfield and David Goldenheim. Includes general explanation and sketch examples.

Includes collections from various areas in which ideas from discrete and computational geometry meet real world applications.

Usenet clippings, web pointers, lecture notes, research excerpts, papers, abstracts, programs, problems, and other stuff related to discrete and computational geometry.

Includes packings of equal objects in containers together with source codes to obtain them numerically.

Discusses double shell structured periodic systems, platonic spheres, molecular and crystal structures, and FlashSort algorithms.

Graffiti is a computer program that makes conjectures in mathematics and chemistry. Links to the conjectures and bibliography.

Information and resources about geometric group theory and low-dimensional topology. People, groups, meetings, links.

Web site for the (now closed) Center for the Computation and Visualization of Geometric Structures at the University of Minnesota. Graphics, multimedia, software, teaching resources.

Excerpts from the 30th Edition of the CRC Standard Mathematical Tables and Formulas (1995), namely, the geometry section minus differential geometry.

Geometry exercises for a two-week summer workshop led by John Conway, Peter Doyle, Jane Gilman and Bill Thurston at the Geometry Center in Minneapolis, June 1991.

At the Geometry Center.

Several properties of the complete quadrilateral illustrated with Java applets

The Butterfly theorem and its generalizations illustrated by Java applets.

Discussion board for geometry professors and instructors to keep informed of the latest research.

Those interested in examining the previous incarnation of the Math Forum may search the archives of the Geometry Forum.

Features articles about specific problems, illusions, and puzzles. Includes diagrams.

Critical reflections on the sangaku phenomenon accompanied by a collection of solved sangaku problems, many with interactive Java illustrations.

Activities of the geometry/topology group at Michigan State University.

Offers a variety of resources for teaching and learning about geometry. Problems and theorems are presented with step-by-step solutions for each proof.

Java applet demonstrating the catenary.

Graphical representations of computer generated forms. (French/English).

By Clark Kimberling. Over 1000 triangle centres in a searchable compilation with diagrams.