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A survey of classical and modern geometries
This note explains the following topics: Euclidean geometry, Geometry in Greek astronomy, Constructions using a compass and straightedge, Geometers sketchpad, Higher dimensional objects, Hyperbolic geometry, The poincare models of hyperbolic geometry, Tilings and lattices, Foundations, Spherical geometry, Projective geometry, The pseudosphere in lorentz space, Finite geometries, Nonconstructibility, Modern research in geometry , A selective time line of mathematics.
Author(s): Arthur Baragar, University of Nevada
340 Pages 
A survey of classical and modern geometries
This note explains the following topics: Euclidean geometry, Geometry in Greek astronomy, Constructions using a compass and straightedge, Geometers sketchpad, Higher dimensional objects, Hyperbolic geometry, The poincare models of hyperbolic geometry, Tilings and lattices, Foundations, Spherical geometry, Projective geometry, The pseudosphere in lorentz space, Finite geometries, Nonconstructibility, Modern research in geometry , A selective time line of mathematics.
Author(s): Arthur Baragar, University of Nevada
340 Pages
This note covers the following topics: The classical theorem of Ceva, Ceva, Menelaus and Selftransversality, The general transversality theorem, The theorems of Hoehn and Pratt-Kasapi, Circular products of ratios involving circles, Circle transversality theorems, A basic lemma and some applications, Affinely Regular Polygons, Linear transformations; smoothing vectors, Affine-Regular Components, The general Napoleon's Theorem, The iteration of smoothing operations.
Author(s): Branko Grunbaum
164 Pages
Introductory modern geometry of point, ray, and circle
This book explains all the fundamental concepts in modern geometry.
Author(s): William Benjamin Smith
164 Pages
Modern Geometry Gilbert Lecture Notes
This course will show how geometry and geometric ideas are a part of everyone’s life and experiences whether in the classroom, home, or workplace. In the first chapter of the course notes will cover a variety of geometric topics. The four subsequent chapters cover the topics of Euclidean Geometry, Non-Euclidean Geometry, Transformations, and Inversion. However, the goal is not only to study some interesting topics and results, but to also give “proof” as to why the results are valid.
Author(s): Gilbert
230 Pages