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An Elementary Course in Synthetic Projective Geometry
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Projective Geometry by Lehmer, Derrick Norman
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Title: An Elementary Course in Synthetic Projective Geometry
Author: Lehmer, Derrick Norman
Release Date: November 4, 2005 [Ebook #17001]
Language: American
Character set encoding: ISO-8859-1
***START OF THE PROJECT GUTENBERG EBOOK AN ELEMENTARY COURSE IN SYNTHETIC PROJECTIVE GEOMETRY***
An Elementary Course in Synthetic Projective Geometry
by Lehmer, Derrick Norman
Edition 1, (November 4, 2005)
PREFACE
The following course is intended to give, in as simple a way as possible, the essentials of synthetic projective geometry. While, in the main, the theory is developed along the well-beaten track laid out by the great masters of the subject, it is believed that there has been a slight smoothing of the road in some places. Especially will this be observed in the chapter on Involution. The author has never felt satisfied with the usual treatment of that subject by means of circles and anharmonic ratios. A purely projective notion ought not to be