Textbook Title: The Elements of Non-Euclidean Geometry
Textbook Description:
This free etextbook online covers the development of non-euclidean geometry from a fundamental analysis of the concept of parallelism to such advanced topics as inversion and transformations. The textbook, The Elements of Non-Euclidean Geometry, features the relation between parataxy and parallelism, the absolute measure, the pseudosphere, and Gauss’ proof of the defect-area theorem.
Author: D.M.Y. Sommerville
Subjects: Mathematics
Key words: Mathematics, Geometry & Topology, Non-Euclidean Geometries
Download URL: http://www.archive.org/details/ElementsOfNonEuclideanGeometry