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| An interdisciplinary Differential Geometry research team in the Dept of Mathematics and Statistics at UMass Amherst. |
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| This archive is open for any geometer to publish new geometric models, or to browse this site for material to be used in education and research. These geometry models cover a broad range of mathematical topics from geometry, topology, and to some extent from numerics. |
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| Free-access electronic journal about elementary Euclidean geometry. |
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| A discussion of rotation, levitation, wheels, and bodies of water. Classification of 'rotatopes' (cubes, spheres, and cylinders), and a Java applet to visualize projections and intersections of the shapes. Includes book reviews, a glossary, links, and a forum. |
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| The world of higher dimensions in math, physics, history and culture. Books, games and links. |
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| Geometric model building courses to improve understanding of geometry, using a Matrix kit for sale on the site that can be used in order to create the models yourself. |
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| More than eighty paper model templates, ready to cut out and fold up, available to print out or download. |
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| Discusses double shell structured periodic systems, platonic spheres, molecular and crystal structures, and FlashSort algorithms. |
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