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A Gallery of Interactive On-Line Geometry -
At the Geometry Center.
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A New Way to Calculate a Triangle's Area -
Using the length of the three sides. The proof is better understood than the old one.
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Archimedes' Book of Lemmas -
A collection of all 15 propositions from Archimedes' Book of Lemmas with complete proofs, each accompanied by a Java illustration.
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Bette Veteto's Homepage - http://www.people.memphis.edu/~brveteto/
History of Mathematics, very strong on geometry.
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Bob's Pages - http://www.people.memphis.edu/~brveteto/
A collection of interactive geometry applets. Topics include polyhedra, Poncelet's porism, Soddy's hexlet, Mandelbrot set, Steiner porism, Pappus's chain, Repulsion polyhedra and stereo pictures.
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Center of Points in 2- or Higher-dimensional Space - http://www.people.memphis.edu/~brveteto/
It provides important formulations for finding a center of points in 2 or higher dimensional space. It can be used in drawing delauney triagulation and voronoi diagram in two or higher dimensions. It also describes how many points are required in defining a center in n-dimensional space.
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Conjectures Produced by the Program Graffiti - http://www.people.memphis.edu/~brveteto/
Graffiti is a computer program that makes conjectures in mathematics and chemistry. Links to the conjectures and bibliography.
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Cuboid and Cube Surface Distances - http://www.people.memphis.edu/~brveteto/
A java applet with substantial analysis related to distances on a rectangular box.
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Cut the Knot - http://www.people.memphis.edu/~brveteto/
Features articles about specific problems, illusions, and puzzles. Includes diagrams.
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Encyclopedia of Triangle Centers - http://faculty.evansville.edu/ck6/encyclopedia/
By Clark Kimberling. Over 1000 triangle centres in a searchable compilation with diagrams.
Status Code: 200 - Location: http://faculty.evansville.edu/ck6/encyclopedia/index.html Edit listing [dmoz.org] - Report dead link [dmoz.org] - Edit Category [dmoz.org] |
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Erich's Packing Center - http://faculty.evansville.edu/ck6/encyclopedia/
Graphics and links for various packing, tiling and covering problems.
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Fundamentals of Geometry - http://faculty.evansville.edu/ck6/encyclopedia/
Free online book on geometry in pdf format. Contains material not easily found elsewhere from detailed exposition of elementary absolute geometry based on Hilbert's axioms to more advanced topics.
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Geometric Group Theory - http://faculty.evansville.edu/ck6/encyclopedia/
Information and resources about geometric group theory and low-dimensional topology. People, groups, meetings, links.
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Geometry Activities - http://faculty.evansville.edu/ck6/encyclopedia/
By Ephraim Fithian.
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Geometry and the Imagination in Minneapolis - http://faculty.evansville.edu/ck6/encyclopedia/
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.
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Geometry Center - http://faculty.evansville.edu/ck6/encyclopedia/
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.
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Geometry Formulas and Facts - http://faculty.evansville.edu/ck6/encyclopedia/
Excerpts from the 30th Edition of the CRC Standard Mathematical Tables and Formulas (1995), namely, the geometry section minus differential geometry.
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Geometry from the Land of the Incas - http://faculty.evansville.edu/ck6/encyclopedia/
Presents problems involving circles and triangles, with proofs, SAT practice quizzes and famous quotes. Also, has examples of geometry in Peruvian culture.
Status Code: 403 Edit listing [dmoz.org] - Report dead link [dmoz.org] - Edit Category [dmoz.org] |
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Geometry in Action - http://faculty.evansville.edu/ck6/encyclopedia/
Includes collections from various areas in which ideas from discrete and computational geometry meet real world applications.
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Geometry Page from Interactive Mathematics Miscellany - http://www.cut-the-knot.com/geometry.html
Includes articles on topics in elementary and not so elementary geometry, many with interactive Java illustrations and multiple proofs.
Status Code: 301 - Location: http://www.cut-the-knot.org/geometry.shtml Edit listing [dmoz.org] - Report dead link [dmoz.org] - Edit Category [dmoz.org] |
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Geometry/Topology at Michigan State University - http://www.math.msu.edu/gt/
Activities of the geometry/topology group at Michigan State University.
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GLaD Comments - http://www.math.msu.edu/gt/
A new type of geometric construction that was discovered by Dan Litchfield and David Goldenheim. Includes general explanation and sketch examples.
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Go Geometry - http://www.math.msu.edu/gt/
Offers a variety of resources for teaching and learning about geometry. Problems and theorems are presented with step-by-step solutions for each proof.
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Math 3210 - Higher Geometry I - http://www.math.msu.edu/gt/
Course notes by Bill Cherowitzo.
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Math Forum: Geometry POW/POM Search - http://www.math.msu.edu/gt/
Search the Geometry Problem of the Week's archive of creative, non-routine challenges, as well as submissions and commentary, dating back to 1993.
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Math Forum: Geometry.research - http://www.math.msu.edu/gt/
Discussion board for geometry professors and instructors to keep informed of the latest research.
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Math Forum: Search geometry-forum - http://www.math.msu.edu/gt/
Those interested in examining the previous incarnation of the Math Forum may search the archives of the Geometry Forum.
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Mathematical Curves and Surfaces - http://www.math.msu.edu/gt/
Graphical representations of computer generated forms. (French/English).
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Morley's Miracle - http://www.cut-the-knot.com/triangle/Morley/index.html
A discussion of Morley's famous theorem and the research of which it was a tiny part. 5 proofs are given including J. Conway's, D. Newman's, and A. Connes'.
Status Code: 301 - Location: http://www.cut-the-knot.org/triangle/Morley/index.shtml Edit listing [dmoz.org] - Report dead link [dmoz.org] - Edit Category [dmoz.org] |
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New Mathematical Findings by Secondary Students - http://www.cut-the-knot.com/triangle/Morley/index.html
High school students solve complex geometric problems by using GLad Sketchpad. Page includes diagrams.
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NPR : Mathematicians Get Crafty with Geometry - http://www.cut-the-knot.com/triangle/Morley/index.html
A husband and wife from Cornell University have come up with a crafty way to illustrate high-level geometry concepts -- by manipulating yarn into models that help explain the curvature of spaces. The mathemeticians talk with NPR's Jacki Lyden about hyperbolic crocheting. [4:47 streaming audio broadcast]
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Packomania - http://www.cut-the-knot.com/triangle/Morley/index.html
Includes packings of equal objects in containers together with source codes to obtain them numerically.
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Paul Bourke's Geometry Page - http://astronomy.swin.edu.au/~pbourke/geometry/
Includes formulas, definitions and three dimensional image illustrations.
Status Code: 302 - Location: http://local.wasp.uwa.edu.au/~pbourke/geometry/ Edit listing [dmoz.org] - Report dead link [dmoz.org] - Edit Category [dmoz.org] |
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Polyedergarten - http://astronomy.swin.edu.au/~pbourke/geometry/
Shows paper models of polyhedra.
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Problem of the Minimum Rotation Surface - http://astronomy.swin.edu.au/~pbourke/geometry/
Java applet demonstrating the catenary.
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Sangaku: Reflections on the Phenomenon - http://astronomy.swin.edu.au/~pbourke/geometry/
Critical reflections on the sangaku phenomenon accompanied by a collection of solved sangaku problems, many with interactive Java illustrations.
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Steiner Surfaces - http://astronomy.swin.edu.au/~pbourke/geometry/
Mathematical descriptions and ray-traced images of various types of Steiner surfaces.
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The Complete Quadrilateral - http://astronomy.swin.edu.au/~pbourke/geometry/
Several properties of the complete quadrilateral illustrated with Java applets
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The Entropy Reduction Laboratory by Karl-Dietrich Neubert - http://astronomy.swin.edu.au/~pbourke/geometry/
Discusses double shell structured periodic systems, platonic spheres, molecular and crystal structures, and FlashSort algorithms.
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The Geometry Junkyard - http://astronomy.swin.edu.au/~pbourke/geometry/
Usenet clippings, web pointers, lecture notes, research excerpts, papers, abstracts, programs, problems, and other stuff related to discrete and computational geometry.
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The Kepler Conjecture - http://astronomy.swin.edu.au/~pbourke/geometry/
Information on the recent proof of Kepler conjecture on sphere packings.
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The Lepidoptera of the Circles - http://astronomy.swin.edu.au/~pbourke/geometry/
The Butterfly theorem and its generalizations illustrated by Java applets.
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Tim Lister's Hyperbolic Geometry - http://astronomy.swin.edu.au/~pbourke/geometry/
Cabri constructions for the demonstration of the basic concepts of hyperbolic geometry in the Poincare disc model.
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Wilson Stothers' Inversive Geometry and CabriJava Pages - http://www.maths.gla.ac.uk/~wilson/cabripages/inversive/inversive0.html
Includes Steiner's Porism and the arbelos.
Status Code: 302 - Location: http://www.maths.gla.ac.uk/~wws/cabripages/inversive/inversive0.html Edit listing [dmoz.org] - Report dead link [dmoz.org] - Edit Category [dmoz.org] |
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Xah's Personal Page - http://www.maths.gla.ac.uk/~wilson/cabripages/inversive/inversive0.html
Features an illustrated dictionary of special plane curves, a paper on wallpaper groups, mathematics image gallery and links to software packages.
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