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 178
n aboutB, C, D, A in such a manner that we have for various positionsthe projective ranges (AxA2Az • • :) = (BtB2B3. . .) = (C1C2C3.. •) = (ADA-..) = (i/i/4/...). Considering the projective ranges (A XA 2A 3. . .) = (A j A 2 A 3 . . .) THEORY OF CONICS. 165 on a, it is clear that the lines am aN… … the figure the two real solutions of the problem are indicated byheavy lines. Ex. 1. To inscribe in a given conic a polygon whose sidespass respectively through given, non-collinear, points. 166 PROJECTIVE GEOMETRY. Ex. 2. To circumscribe about a given circle a triangle whosevertices are on three…
Geometry, Projective · Geometry, Analytic
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