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Geometry Center - http://www.geom.uiuc.edu/
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 in Action - http://www.ics.uci.edu/~eppstein/geom.html
Includes collections from various areas in which ideas from discrete and computational geometry meet real world applications. |
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The Geometry Junkyard - http://www.ics.uci.edu/~eppstein/junkyard/
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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A Gallery of Interactive On-Line Geometry - http://www.geom.uiuc.edu/apps/gallery.html
At the Geometry Center. |
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Geometry and the Imagination in Minneapolis - http://www.geom.uiuc.edu/docs/doyle/mpls/handouts/handouts.html
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 from the Land of the Incas - http://agutie.homestead.com/
Presents problems involving circles and triangles, with proofs, SAT practice quizzes and famous quotes. Also, has examples of geometry in Peruvian culture. |
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Geometry Formulas and Facts - http://www.geom.uiuc.edu/docs/reference/CRC-formulas/
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 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. |
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Erich's Packing Center - http://www.stetson.edu/~efriedma/packing.html
Graphics and links for various packing, tiling and covering problems. |
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Cut the Knot - http://www.cut-the-knot.org/geometry.shtml
Features articles about specific problems, illusions, and puzzles. Includes diagrams. |
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Xah's Personal Page - http://xahlee.org/PageTwo_dir/more.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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Archimedes' Book of Lemmas - http://www.cut-the-knot.org/Curriculum/Geometry/BookOfLemmas/index.shtml
A collection of all 15 propositions from Archimedes' Book of Lemmas with complete proofs, each accompanied by a Java illustration. |
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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'. |
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Geometric Group Theory - http://www.math.ucsb.edu/~jon.mccammond/geogrouptheory/
Information and resources about geometric group theory and low-dimensional topology. People, groups, meetings, links. |
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Fundamentals of Geometry - http://polly.phys.msu.ru/~belyaev/geometry.htm
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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Bob's Pages - http://members.ozemail.com.au/~llan/
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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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. |
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Tim Lister's Hyperbolic Geometry - http://mcs.open.ac.uk/tcl2/nonE/nonE.html
Cabri constructions for the demonstration of the basic concepts of hyperbolic geometry in the Poincare disc model. |
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NPR : Mathematicians Get Crafty with Geometry - http://www.npr.org/templates/story/story.php?storyId=4531695
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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GLaD Comments - http://jwilson.coe.uga.edu/Texts.Folder/GLaD/GLaD.Comments.html
A new type of geometric construction that was discovered by Dan Litchfield and David Goldenheim. Includes general explanation and sketch examples. |