Websites on Non-Euclidean: Book List on Non-Euclidean Geometry From theTreasureTroves collection. Euclidean and Non-Euclidean Geometry with The Geometer's Sketchpad Conference talk by Scott Steketee with downloadable sketches. Minkowskian geometry and quaternion algebras An exploration of the geometry of quaternion algebra, including a commutative variant which exhibits the properties of Minkowskian geometry. NonEuclid - Hyperbolic Geometry Article & Applet Software simulation offering straightedge and compass constructions in hyperbolic geometry. Non-Euclidean Geometry A historical account with links to biographies of some of the people involved. Non-Euclidean Geometry - Mathematics and the Liberal Arts A resource for student research projects and for teachers interested in using the history of mathematics in their courses. Non-Euclidean Geometry with LOGO Review of a new version of LOGO developed at Cardiff. The Ontology and Cosmology of Non-Euclidean Geometry A philosophical essay. References for Non-Euclidean Geometry A bibliographic reference list of books and articles on non-Euclidean geometries, part of the MacTutor History of Mathematics archive. Seminar on the History of Hyperbolic Geometry Seminar notes by Greg Schreiber. Spherical Trigonometry, Arc Distance Formula Finding the shortest distance between two points on the earth given latitude and longitude. Download ARC_CALC_3, Microsoft Excel version, A Spherical Triangle Calculator by James Q. Jacobs.
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