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 199
er Ordnung im Zusammenhang mit geometrischenLehrsdtzen Jakob Steiners. Also Poncelet: Traite, i ed. 1822, p. 198. i86 PROJECTIVE GEOMETRY. B^B^Bs. Taking a pencil of rays through P, its correspondingpencil of conies passes through P and Bj^, B^, B^. The curveof the third order produced by these two… … Fig. 76. As, A^, the corresponding points on these four rays coincide,each for each, with A^, A 2, A^, A^, so that these points are onthe cubic and PA^, PA^,PA^, PA^ the tangents at these points.On the rays PB^, PB2, PB^ the points which correspond to B^, B^,B3 are the points of intersection 5/,…
Geometry, Projective · Geometry, Analytic
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