An introduction to projective geometry and its applications; an analytic and synthetic treatment (1905)
Emch, Arnold, b. 1871 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 61
tersecting s in S, and constructing any twocorresponding points P and Pf (rotated position of a point in izand its projection on n), we have (CSPP)= const. 48 PROJECTIVE GEOMETRY. Keeping CS fixed and constructing all possible pairs (P, P),two coincident projective series of points are obtained… … Fig. 19. these details it is important to establish the analytical relationbetween a pair P, P. Ex. 1. In both figures 18 and 19 it is noticed that the distancebetween r and s is equal to the distance between C and q. As-sume the elements of a perspective as in Fig. 19, and draw theperspective of a…
Geometry, Projective · Geometry, Analytic
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