Projective Geometry by H.S.M. Coxeter
English | 1 Mar. 1998 | ISBN: 0387965327 | 175 Pages | PDF | 7 MB
In Euclidean geometry, constructions are made with ruler and compass. Projective geometry is simpler: its constructions require only a ruler. In projective geometry one never measures anything, instead, one relates one set of points to another by a projectivity.