Smart, Edward Howard · London : Macmillian and Co. · leaf 233
). (a) Tlie points of intersection ofcross j oins of pairs of correspondingpoints of two homographic rangeson different lines, and which arenot necessarily in perspective, in-tersect on a straight line (calledthe Homographic or Cross Axis).*(Fig. 105a.) {b) The joins of cross intersec-tions of… … Fio. 105a. * The introduction of the terms Cross-Axis and Cross-Centre is due toProf. Filon. 206 PROJECTIVE GEOMETRY Let the bases of the ranges bep and p. Employing the notationof the previous article, let thepoint of intersection of p and pbe denoted by X or Y, accordingas it is considered as…
Geometry, Projective
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
